Evaluation of Yield, Quantity and Quality Traits in intercropping of Peppermint (Mentha Piperita L.) and Fenugreek (Trigonella foenum - graceum L.) under Different Planting Dates
Zakieh
Ebrahim Ghochi
گروه زراعت و اصلاح نباتات، دانشکده علوم کشاورزی، دانشگاه گیلان
author
Gholam Reza
Mohsenabadi
استادیار گروه زراعت و اصلاح نباتات دانشکده کشاورزی دانگشاه گیلان
author
Majid
Majidian
گروه زراعت و اصلاح نباتات، دانشکده علوم کشاورزی، دانشگاه گیلان
author
text
article
2017
per
In order to investigate the effect of different planting dates on yield, quantity and quality traits in replacement intercropping system of peppermint and fenugreek, a field experiment was conducted as split-plot arrangement based on randomized complete block design with three replications, in University of Guilan, during growing season of 2015 - 2016. The experimental treatments were planting dates in three levels (October 2, February 29 and April 29) assigned to main plots and planting systems in five levels (sole cropping of peppermint, sole cropping of fenugreek and replacement intercropping peppermint- fenugreek with ratios 1:1, 2:2 and 2:1 (two rows of fenugreek: one row of peppermint) as sub plot. The results showed that yield of both crops were higher in sole cropping in comparison intercropping systems. The highest land equivalent ratio (LER) was obtained in 1:1 intercropping ratio. Grain yield of fenugreek in 29 February and 29 April in comparison to autumn planting date 23% and 47% were decreased respectively, and its biological yield 15% and 32% were declined. Also in these planting dates, peppermint leaf dry weight 48% and 57 % was decreased. The highest essential oil percent of both crops was achieved from planting date of February 29 and 1:1 intercropping ratio interaction. The highest essential oil yield of both crops was obtained from autumn planting date and their sole cropping. The planting dates had no significant effect on total chlorophyll of peppermint. In general, in this study, autumn planting date improved quantity and quality traits and intercropping advantages.
JOURNAL OF AGRICULTURAL SCIENCE AND SUSTAINABLE PRODUCTION
University of Tabriz
2476-4310
27
v.
3
no.
2017
1
15
https://sustainagriculture.tabrizu.ac.ir/article_6630_17762e864f6700f5550925f1bb10e488.pdf
Effect of Fertilizer Treatments and Irrigation Regimes on Lallemantia iberica Seed Mucilage Yield and Compounds
Vahid
Ghasemian
گروه اکوفیزیولوژی گیاهی، دانشکده کشاورزی، دانشگاه تبریز
author
Jalil
Shafagh
گروه اکوفیزیولوژی گیاهی، دانشکده کشاورزی، دانشگاه تبریز
author
Alireza
Pirzad
گروه زراعت دانشگاه ارومیه
author
text
article
2017
per
In order to compensate the effect of water deficit stress on the yield, percentage and composition of seed mucilage of the medicinal plant ‘Dragon’s head’ (Lallemantia iberica) under different irrigation regimes, a split plot experiment was conducted based on a randomized complete block design with three replications at the Agricultural Research Field of Shahid Beheshti college of Urmia in 2015. Treatments were included irrigation (after 40, 80, 120 and 160 mm of evaporation from pan class A) as main plots and fertilizer treatments (Glomus verruciform, Glomus intraradices, biological phosphorus (Barvar2), zeolite, zinc sulfate, salicylic acid and control) as sub plots. Results showed that the effect of irrigation levels on the percentage, yield and harvest index of mucilage was significant. Irrigation after 80 mm of evaporation produced the highest mucilage percentage (16.26 percent) and yield of mucilage (142.04 kg.ha-1). However, the maximum seed yield (886.02 kg.ha-1), yield of mucilage (138.35 kg.ha-1), biological yield (2815 kg.ha-1) and mucilage percentage (15.69 %) were obtained by applying biological phosphorus (Barvar 2). Analysis of Dragon’s head mucilage exhibited that the main components were glucose, galactose, uronic acid, galacturonic acid, glucuronic acid, xylose, fructose and ribose. Thus in irrigation after 80 mm of evaporation, application of biological phosphorus (Barvar2) and/or salicylic acid spraying were recommended, due to the balanced water consumption, and the highest yield of seed and the highest percentage, yield and harvest index of mucilage.
JOURNAL OF AGRICULTURAL SCIENCE AND SUSTAINABLE PRODUCTION
University of Tabriz
2476-4310
27
v.
3
no.
2017
17
31
https://sustainagriculture.tabrizu.ac.ir/article_6631_c2f24b4f41b27bd0636aa30c7b0be222.pdf
Evaluation of Energy Use Efficiency, Green House Gases Emission and Economic Analysis of Sorghum Production in Sistan
Fatemeh
Fartout Enayat
بوم شناسی زراعی، گروه زراعت، دانشگاه زابل
author
Seyed Mohsen
Mousavinik
گروه زراعت، دانشکده کشاورزی، دانشگاه زابل
author
Mohammad Reza
Asgharipour
گروه زراعت، دانشکده کشاورزی، دانشگاه زابل
author
text
article
2017
per
Energy consumption and application of agricultural inputs have a significant effect on the economy and the environmental consevation. This study examines the energy efficiency, GHGs emissions and production costs of sorghum production systems in the Sistan. Data were collected from 85 sorghum farms using face to face questionnaires in 2014. Results indicated that the total energy input was 37,695.1 MJ.ha-1, and the most important energy inputs belonged to electricity, followed by chemical fertilizers and diesel fuel. The share of direct, indirect, renewable and non-renewable forms in sorghum production were 79%, 21%, 22% and 78, respectively. Also, energy use efficiency was 7.3. Electricity with a production of 2981.3 kg CO2-eq.ha-1 played the most important role on the total GHGs emission of 3746.7 kg CO2-eq.ha-1 and it was followed by manure and diesel fuel. Economic analysis indicated that the total cost and the average net return of sorghum production was 29.5 and 5.8 million Rial.ha-1, respectively. Energy use efficiency was 13.4, while the benefit-to-cost ratio was 1.3. Energy management is a key factor for reduction of energy consumption, environmental pollution and the cost of production in the fields.
JOURNAL OF AGRICULTURAL SCIENCE AND SUSTAINABLE PRODUCTION
University of Tabriz
2476-4310
27
v.
3
no.
2017
33
43
https://sustainagriculture.tabrizu.ac.ir/article_6634_061983df3969e8c179672576a437b30b.pdf
Advantage of Peppermint (Mentha piperita L.) and Faba Bean (Vicia faba L.) Intercropping in Different Cropping Patterns
Mostafa
Amani Machiani
آگرواکولوژی، دانشکده کشاورزی، دانشگاه مراغه
author
Abdollah
Javanmard
گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه مراغه
author
Yousef
Nasiri
گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه مراغه
author
Mohammad reza
Morshedloo
گروه باغبانی، دانشکده کشاورزی، دانشگاه مراغه
author
text
article
2017
per
In order to evaluate of peppermint and faba bean intercropping, a field experiment was carried out as a randomized complete blocks design (RCBD) with eight treatment and three replication at the faculty of Agriculture, University of Maragheh during 2015 growing season. Treatments were included sole planting of peppermint and faba bean, 1 row peppermint+ 1 row faba bean, 1 row peppermint+ 2 rows faba bean, 2 rows peppermint+ 1 row faba bean, 2 rows peppermint+ 3 rows faba bean, 3 rows peppermint+ 2 rows faba bean, 1 row peppermint+ 3 rows bean and 3 rows peppermint+ 1 row bean. Intercropping different patterns were calculated by means of land equivalent ratio (LER), standard land equivalent ratio (LERS), area time equivalent ratio (ATER), area harvest equivalent ratio (AHER), land use efficiency (LUE), peppermint equivalent yield (EYP), relative crowding coefficient (RCC or K), aggressivity (A), competitive ratio (CR), actual yield loss (AYL), monetary advantage index (MAI), intercropping advantage (IA), system productivity index (SPI) and relative value total (RVT). Results showed that seed yield of faba bean per occupied unit area and per intercropped unit area were affected significantly by intercropping patterns. The highest seed yield of faba bean per occupied unit was obtained in the 2:3 and 1:3 treatments. In addition, the highest seed yield of faba bean per intercropped unit area observed in faba bean sole crop. The highest values of LER, LERS, ATER, AHER, LUE, EYP, IA, MAI and SPI obtained in 2:3, 3:2 and 1:3 intercropping patterns, indicating that the intercropping systems were the most profitable on basis of agronomical and economical. Generally, the A, CR and AYL values in peppermint were higher than bean, indicating that peppermint was more competitive and dominant than faba bean. Generalley, in basis of more agronomy and economic indices in 2:3 cropping pattern, this cropping pattern was superier than other treatments.
JOURNAL OF AGRICULTURAL SCIENCE AND SUSTAINABLE PRODUCTION
University of Tabriz
2476-4310
27
v.
3
no.
2017
45
62
https://sustainagriculture.tabrizu.ac.ir/article_6635_b7c8ca452136aba04b6a55db3b384073.pdf
The Effects of Relative Substitution of Organic Fertilizers on Elementes Content, Some Physiological Traits and Yield of Lepidium sativum L.
Lamia
Vojodi Mehrabani
گروه زراعت واصلاح نباتات، دانشگاه شهید مدنی آذربایجان
author
Rana
Valizadeh Kamran
گروه بیوتکنولوژی، دانشگاه شهید مدنی آذربایجان
author
Mohammad Bagher
Hassanpouraghdam
گروه باغبانی، دانشگاه مراغه
author
text
article
2017
per
An experiment was conducted to study the effects of partial substitution of some organic fertilizers on the growth, yield and some physiological traits (elemental content, as well as phenolics, flavonoids and chlorophyll content of lepidium sativum as RCBD with three replications. Treatments were including control, (common soil) and different levels of vermicompost (10 and 20 %), poultry and cow manure substitution in soil. The results revealed that the highest plant height, root length, leaf widths and stem and root dry weight were observed with 10 and 20% of vermicompost. Chlorophyll a content had highest amount at 20% vermicompoust and chlorophyll b content had the highest amount with 10% vermicompost and cow manure substitution and for total flavonoids, 10 % vermicompost hold the highest data. For the elements, Zn content was affected by the poultry (120-122.7 µg/plant) and cow manure (119.7-123.3 µg/plant) substitution. Mn2+(341.8-378.6 µg/plant) and Fe2+ (733.3-800 µg/plant)compositional amounts were statistically affected by vermiconpost. K+content (7.4 mg/plant) were positively responded to cow manure and vermicompost (8.6 mg/plant) both at 20% substitution. The lowest data for Ca2+content was belonged to control (4.6 mg/plan). 20% poultry and cow manures affected N content of the plant. It seems that organic fertilizers substitution affects the soil characteristics and improves nutrients absorption and hence influences the vegetative growth, elemental content of plants tissue as well as the organic compounds pool. Finally, it is worthy of note that with the suitable management of organic fertilizers utilization we would be able to promote the yield and quality attributes of the plant in favor of nutritional and therapeutic plant properties.
JOURNAL OF AGRICULTURAL SCIENCE AND SUSTAINABLE PRODUCTION
University of Tabriz
2476-4310
27
v.
3
no.
2017
63
72
https://sustainagriculture.tabrizu.ac.ir/article_6636_a7030f63b90d8bc2a8d66e7fdf8f58da.pdf
Assessing Physiological Characteristics and Dry Matter of Two Mung Bean Genotypes
Rozbeh
Farhoudi
گروه زراعت و اصلاح نباتات، دانشگاه آزاد اسلامی واحد شوشتر
author
Mohammad
Motamedi
گروه زراعت و اصلاح نباتات، دانشگاه آزاد اسلامی واحد شوشتر
author
text
article
2017
per
High salinity is an environmental problem affecting seed germination, seedling growth and seed yield in plants. The experimental design was factorial arranged in a completely randomized design (CRD), with four replications. The first factor was soil electrical conductivity levels (1.1, 2.4, 4.9 and 6.7 dS.m-1) and the second factor was mung bean cultivars (Parto and Pakistani). Soil electrical conductivity increasing, decreased mung bean dry weight, shoot height, photosynthesis rate, chlorophyll a and b content, K+content and K/Na ratio but increased cell membrane damage, antioxidants enzymes activates and Na+ content. In the both cultivars minimum shoot weight obtained from Parto cultivar and 6.7 dS.m-1 .The highest Na+ concentration was observed in Parto cultivar under 4.9 and 6.7 dS.m-1treatment. Stress condition increased cell membrane damage and maximum lipid peroxidation obtained from Parto cultivar under 6.7 dS.m-1. 2.4, 4.7 and 6.7 dS.m -1 soil electrical conductivity, decreased K/Na ratio to 1.1, 0.6 and 0.13 in Parto cultivar. At highest soil electrical conductivity level, Pakistani cultivar had maximum shoot dry weight , photosynthetic rate and K/Na ratio and these results indicated Pakistani cultivar was salt tolerant cultivar compared to Parto cultivar.
JOURNAL OF AGRICULTURAL SCIENCE AND SUSTAINABLE PRODUCTION
University of Tabriz
2476-4310
27
v.
3
no.
2017
73
86
https://sustainagriculture.tabrizu.ac.ir/article_6638_903065eb7345bada7a24260403f0dc9a.pdf
Evaluating the Cultural and Physical Methods and Reduced Doses of Herbicide in Integrated Weed Management of Chickpea (Cicer arietinum L.)
Iraj
Nosrati
شناسایی و مبارزه با علفهای هرز، دانشکده کشاورزی، دانشگاه تبریز
author
Adel
Dabbagh Mohammadi Nassab
گروه اکوفیزیولوژی گیاهی، دانشکده کشاورزی، دانشگاه تبریز
author
Mohammad Reza
Shakiba
اکوفیزیولوژی گیاهی، دانشکده کشاورزی، دانشگاه تبریز
author
Rohollah
Amini
اکوفیزیولوژی گیاهی، دانشکده کشاورزی، دانشگاه تبریز
author
text
article
2017
per
Weeds are one of the most important factors limiting production of chickpea (Cicer arietinum L.). In order to evaluate the effect of non-chemical control methods in integration with reduced rates of pyridate on weeds of chickpea field an experiment was conducted in Kermanshah during 2014-2015 growth seasons. The first factor was non-chemical weed management in five levels including wheat- chickpea intercropping, using wheat straw mulch, using cultivator, hand weeding and without non-chemical control and the second factor was application of different rates of herbicide pyridate at five levels including 0, 25, 50, 75 and 100% recommended rate(120 g.a.i/ha). Also the weed-free treatment during whole growth season was considered as control. The results showed that the interaction effect of herbicide rate Î non-chemical management was significant (p ≤ 0.01) on weed biomass, kernels number per plant and grain yield of chickpea. At all levels of non-chemical weed managements with increasing the herbicide dose, the weed biomass per unit area decreased. At all non-chemical management levels except straw mulch application, the difference between grain yield of 100 and 75% herbicide rate was not significant, therefore the 75% herbicide rete could be used instead of 100%. Generally with application of non-chemical weed management methods, the herbicide input reduced and also the grain yield of chickpea was not affected.
JOURNAL OF AGRICULTURAL SCIENCE AND SUSTAINABLE PRODUCTION
University of Tabriz
2476-4310
27
v.
3
no.
2017
87
102
https://sustainagriculture.tabrizu.ac.ir/article_6639_cdd8b56aa9585b56da8124e829d7d1bb.pdf
The Effect of Organic Fertilizers on Morphological Traits, Essential Oil Content and Components of Basil (Ocimum basilicum L.)
Mahdi
Rahmanian
گروه باغبانی- دانشگاه محقق اردبیلی
author
Behrooz
Esmaielpour
گروه علوم باغبانی- دانشگاه محقق اردبیلی
author
Javad
Hadian
پژوهشکده گیاهان دارویی، دانشگاه شهید بهشتی
author
Malek Hossein
Shahriari
گروه علوم باغبانی- دانشگاه خلیج فارسی بوشهر
author
Hamideh
Fatemi
گروه علوم باغبانی، دانشگاه محقق اردبیلی
author
text
article
2017
per
The useage of organic fertilizer in a sustainable agricultural system could reduce the environmental risks associated with the use of chemical fertilizers by improving the physical, chemical and biological properties of soils that will result in sustainable production. Therefore, it seems necessary to assessing the impact of organic fertilizers on growth and yield of crops. In this study, an experiment was conducted in a completely randomized design,University of Mohaghegh Ardabili to evaluate the effect of organic fertilizers including vermicompost and spent mushroom compost on morphological traits and essential oil of basil. Treatments included zero (control), 10, 20, 30, 40 and 50 percent of vermicompost and spent mushroom compost in both washed and unwashed cases. The results of this study showed thatthe maximum of fresh weight of bush, leaves numbers, leaf area, leaf dry weight, number of main stems and chlorophyll were observed in plant cultivation medium supplemented with 30 and 40 percent of washed spent mushroom compost that were significantly more than the control treatment. While, the major amount of plant were height and bush dry weight, stem dry weight, root fresh and dry weight and percent of essential oil were recorded in treatments containing 20 and 30% of vermicompost. The results showed that the use of organic fertilizers increased essential oil composition in basil. So that the highest percentage of myrcene, beta-pinene, eugenol and gama-muurolene were obtained in plants grown in substrate containing different percentages of washed mushroom compost. In this study on the most traits, the use of organic fertilizers showed a significant effect compared to the control.
JOURNAL OF AGRICULTURAL SCIENCE AND SUSTAINABLE PRODUCTION
University of Tabriz
2476-4310
27
v.
3
no.
2017
103
118
https://sustainagriculture.tabrizu.ac.ir/article_6640_e4b078ec91c47fadd48bdb9fc4d43692.pdf
Application and Non-Application of Sulfur in the Formulation of Pseudomonas fluorescens Phosphatic Microbial Fertilizer on Corn (Zea mays L.)
Bahman
Khoshrou
گروه علوم و مهندسی خاک، دانشکده کشاورزی، دانشگاه تبریز
author
Mohammad Reza
Sarikhani
گروه علوم و مهندسی خاک، دانشکده کشاورزی، دانشگاه تبریز
author
Naser
Aliasgharzad
گروه علوم و مهندسی خاک، دانشکده کشاورزی دانشگاه تبریز
author
text
article
2017
per
Phosphatic microbial fertilizers (PMFs) which produced from organic (Bagasse) and chemical (Rock phosphate and Sulfur) materials with combination of phosphate solubilizing bacteria (PSB) are taking more concerns in recent researches. These products are being used in two forms; granular or powder, to meet plant P demand. But application of sulfur in this formulation was the main reason of this research, whether the application of S in this context is useful or not? According to this main question, application and non-application of elemental sulfur in produced PMFs were evaluated in this study. This PMF was made after preparing the initial appropriate population (107 CFU/g) of the bacteria Pseudomonas fluorescens in the context of rock phosphate (45 g), bagasse (30 g) and sulfur (15 g). The treatments included the control (without adding any bacteria or PMF), microbial fertilizers bed without adding bacteria (or carriers) and PMFs in two levels of consumption (0.6 g and 1.2 g) based on soil analysis test. The results of greenhouse experiment showed that the addition of sulfur in the formulation of microbial fertilizers not only doesn’t have any inhibiting effect on bacteria but also increases all the indices of growth and plant nutrient. Application of sulfur in phosphatic microbial fertilizers had significant increase on total wet and dry weight of shoot (50.48 and 20.62 %, respectively) and root (41.85 and 42.47 %, respectively), the content of phosphorus, potassium, iron and zinc in the root (45.86, 58.01, 45.09 and 76.33%, respectively) and shoot (28.66, 29.79, 50.08 and 67.23%, respectively) of corn variety S.C.704. Inoculation with microbial fertilizers and plant growth promoting bacteria P. fluorescens with chemical element sulfur led to rhizosphere colonization and caused an increasing effect on plant growth and its nutrition. It seems that addition of sulfur not only has not a negative effect on P. fluorescens bacteria but also the positive effects of this fertilizer have improved.
JOURNAL OF AGRICULTURAL SCIENCE AND SUSTAINABLE PRODUCTION
University of Tabriz
2476-4310
27
v.
3
no.
2017
119
136
https://sustainagriculture.tabrizu.ac.ir/article_6641_f3f86d7024890397c05944104bec49af.pdf
Evaluation of Yield Quantity and Quality of Forage Corn and Sweet Basil Affected by Biological, Chemical and Integrated Nitrogen Fertilizers in Intercropping
Sajad
kordi
اکولوژی گیاهان زراعی، گروه اکوفیزیولوژی گیاهی، دانشکده کشاورزی، دانشگاه تبریز
author
Jalil
Shafagh Kolvanagh
گروه اکوفیزیولوژی گیاهی، دانشکده کشاورزی، دانشگاه تبریز
author
Saeid
Zehtab Salmasi
گروه اکوفیزیولوژی گیاهی، دانشکده کشاورزی، دانشگاه تبریز
author
Mashallah
Daneshvar
گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه لرستان
author
text
article
2017
per
In order to evaluate yield and some qualitative traits of forage corn and sweet basil under nitrogen fertilizers (biological, chemical and integrated) in additive intercropping a field experiment was carried out in the Experimental Farm Department of Agronomy, Faculty of Agriculture, Lorestan University during 2014-2015 growing seasons. The treatments were arranged in a factorial experiment based on Randomized Complete Blocks Design (RCBD) with three replications. Experimental treatments were 100% chemical fertilizer (N), bio-fertilizer (nitroxin), integration of bio-fertilizer + 50% chemical fertilizer and control and different intercropping systems consisted of sole cropping corn and sweet basil and the additive intercropping of corn + 25% sweet basil, corn + 50% sweet basil, corn + 75% sweet basil and corn + 100% sweet basil. The results showed that integration of bio-fertilizer + 50% chemical fertilizer had the highest protein of forage (9.43%), but in terms of yield and yield components of forage corn, chemical fertilizer was better to the other treatments. The highest fresh and dry leaf weight, fresh and dry forage yield and forage crude Protein were obtained from sole cropping pattern of corn. Sole cropping pattern of sweet basil with integration of bio-fertilizer + 50% chemical fertilizer in the second year had the highest fresh and dry yield. The highest LER (1.566) belonged to corn + 100% sweet basil with bio-fertilizer. The results showed that using the integration of bio-fertilizer + 50% chemical fertilizer could be considered as a way to reduce the consumption of chemical fertilizers for sustainable agriculture.
JOURNAL OF AGRICULTURAL SCIENCE AND SUSTAINABLE PRODUCTION
University of Tabriz
2476-4310
27
v.
3
no.
2017
139
152
https://sustainagriculture.tabrizu.ac.ir/article_6642_a9ebef935b09b5c35dc5d5250fd270b6.pdf
Improving Cucumber Salt Tolerance by Grafting on Cucurbit Rootstock
Esmaeil
Madadkhah
گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه تبریز
author
Sahebali
Bolandnazar
گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه تبریز
author
Shahin
Oustan
گروه علوم خاک، دانشکده کشاورزی، دانشگاه تبریز
author
text
article
2017
per
Soil and water salinity is one of the stresses that have limited cucumber production in Iran. The use of cucurbit rootstocks is a valid strategy in increasing cucumber salt tolerance. In order to investigate the effect of the grafting on Shintoza, Cobalt, and Root power rootstocks in salinity condition (40, 60 and 80 mM NaCl) on yield, growth, fruit quality, electrolyte leakage, leaf area, specific leaf area (SLA), SPAD index, leaf relative water content (LRWC), mineral composition, and proline of cucumber plants (cv. Khasib), an factorial experiment was carried out based on completely randomized design (CRD) with three replications. Salinity improved fruit quality in both grafted and ungrafted plants by increasing fruit dry matter and total soluble solids content. Moreover, at the three salt treatments the percentage of yield and biomass reduction was significantly lower in the grafted plants in comparison to ungrafted plants. Grafted cucumber plants exposed to NaCl were capable of maintaining higher fruit yield, plant growth, leaf area, leaf relative water content (LRWC), higher chlorophyll content (SPAD index), a better nutritional status in the root and leaf tissues and higher proline concentration and less electrolytic leakage in comparison with ungrafted ones. These results suggest that rootstocks have a higher capacity for Na+ exclusion and retention, which resulted in reduced Na+ transport to the shoot and increased the salt tolerance of cucumber.
JOURNAL OF AGRICULTURAL SCIENCE AND SUSTAINABLE PRODUCTION
University of Tabriz
2476-4310
27
v.
3
no.
2017
153
170
https://sustainagriculture.tabrizu.ac.ir/article_6643_a2dfa3fdccb711d47589fb052628fb11.pdf
Evaluation of Yield and Crop Water Requirement in Response to Change of Planting Date under Climate Change Conditions in Kermanshah Province
Hamed
Eyni Nargeseh
گروه زراعت، دانشکده کشاورزی، دانشگاه تربیت مدرس
author
Sajad
Rahimi Moghaddam
گروه کشاورزی اکولوژیک، پژوهشکده علوم محیطی، دانشگاه شهید بهشتی
author
Reza
Deihimfard
گروه کشاورزی اکولوژیک، پژوهشکده علوم محیطی، دانشگاه شهید بهشتی
author
Ali
Mokhtassi-Bidgoli
گروه زراعت، دانشکده کشاورزی، دانشگاه تربیت مدرس
author
text
article
2017
per
APSIM model was used to investigate yield and water requirement of maize in different planting dates under two emission scenarios (RCP4.5 and RCP8.5) at the three locations of Kermanshah province (Kermanshah, Kangavar and Eslamabad-Gharb). Climatic parameters were predicted using the AgMIP methodology. Results of this study indicated that in the future, average maize grain yield will be reduced in all locations, scenarios and planting dates (70 percent) compare to the baseline. Reasons for yield loss are increasing temperature over growing season (15.7%), decreasing length of growing season (4.7%) and is likely to concurrency time of flowering with extreme temperature. In addition, maize water requirement, on average, will be increased 14 percent is comparison to the baseline in all locations, scenarios and planting dates mainly due to rising temperature. In conventional planting date (4 May), crop water requirement of maize on average increased 12 percent under two emission scenarios compared with the baseline while on earlier and later planting dates, crop water requirement increased 15 and 7 percent, respectively. Due to the amount of higher cumulative rainfall during the growing season (54.27) on earlier planting dates (4 and 19 April) as well as lower yield loss compare to other planting dates (56 percent), earlier planting dates can be explained as adaptation strategy in order to achieve appropriate yield. The results also showed that among study locations, Eslamabad-Gharb and Kermanshah were the most suitable areas in terms of grain yield (4221.8 Kg.ha-1) and water requirement (1489.2 mm), respectively.
JOURNAL OF AGRICULTURAL SCIENCE AND SUSTAINABLE PRODUCTION
University of Tabriz
2476-4310
27
v.
3
no.
2017
172
186
https://sustainagriculture.tabrizu.ac.ir/article_6644_8504090bb576a9e46d027bea023ab1c7.pdf
Assessment of Agricultural and Natural Resources Sustainability in East Azerbaijan Province: Application of Composite Indicators
Marzieh
Manafi Mollayosefi
گروه اقتصاد کشاورزی، دانشکده کشاورزی، دانشگاه تبریز
author
Bobollah
Hayati
گروه اقتصاد کشاورزی، دانشکده کشاورزی، دانشگاه تبریز
author
Esmaeil
Pishbahar
گروه اقتصاد کشاورزی، دانشکده کشاورزی، دانشگاه تبریز
author
Javad
Nematian
گروه مهندسی صنایع، دانشکده فنی مهندسی مکانیک، دانشگاه تبریز
author
text
article
2017
per
This study aimed to assess the agricultural and natural resources sustainability of East Azerbaijan Province counties. The research approach was the descriptive-analytical. At first, according to the agricultural and natural resources experts’ viewpoints, 29 indicators were selected in three dimensions: economic, social and environmental issues. Then, the required data and information have been collected from Statistical reports of Agriculture Jihad organization, Statistical yearbooks of East Azerbaijan province and analytical reports of Regional Water organization of East Azerbaijan Province in 2015 and the relative weight of indicators were determined using principal components analysis. The multi-criterion function based on the distance to the ideal point was used to aggregate the several indicators. The results showed that Kaleybar and Varzeghan are the most sustainable and unstable counties respectively. Agricultural land per capita indicator, insurance percentage and yield indicator in economic dimension, literacy rate and immigration in social dimension and the indicators of vegetation cover, chemical fertilizer use and soil organic matter in environmental dimension have the most relative importance. Based on the results, the following recommendations are presented in order to achieve higher levels of agricultural and natural resources sustainability. The arable land per person might be increased through the implementation of appropriate mechanisms that avoid land-use changes and expand the fields of agriculture employment in rural areas, particularly in agro-based industries, to absorb the labor surplus from the agriculture lands. Educational services must be expanded to eradicate illiteracy in rural areas, especially for farmers, and with protection of current vegetation cover in the province, should be tried to improve and extend it.
JOURNAL OF AGRICULTURAL SCIENCE AND SUSTAINABLE PRODUCTION
University of Tabriz
2476-4310
27
v.
3
no.
2017
187
199
https://sustainagriculture.tabrizu.ac.ir/article_6645_8063f1b3912fef816e5357c4bf32e966.pdf
The Effect of Density on Onion Yield in Mono-Cropping and Intercropping with Fenugreek
Tahereh
Moghbeli
گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه تبریز
author
Sahebali
Bolandnazar
گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه تبریز
author
Jaber
Panahande
گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه تبریز
author
Yaegoob
Raei
گروه اکوفیزیولوژی گیاهی، دانشکده کشاورزی، دانشگاه تبریز
author
text
article
2017
per
In order to investigate the of effect intercropping on yield and yield components of onion (Allium cepa L.) and fenugreek (Trigonella foenum-graecum L.), a factorial experiment was carried out based on completely randomized block design with three replications at the research field located in south of Kerman, Iran. The first factor was onion density (20- 25 and 30 plant.m-2) and the second factor was fenugreek plant density (12- 15 and 25 plant.m-2) and sole culture of plants with aforementioned densities were considered. After harvesting the number leaves and length of plants, fresh and dry weight, bulb diameter, fresh and dry weight of bulb, Land Equivalent Ratio (LER) and Relative Value Total (RVT) was measured. The results showed that the highest yield of onion (43.2 t.h-1) was obtained from 20 plant m-2. In intercropping treatment number of leaves, plant length, bulb fresh and dry weight was increased by decreasing plant density from 20 to 30 plant m-2. The highest fresh and dry weigh of onion bulb (167.2 and 11.64 g) was produced in 20 plant.m-2. Number leaf and length of the plant and fresh and dry weigh of onion was increased in intercropping. However intercropping fenugreek with onion had no significant effect on its yield in comparison with mono culture. The highest Land Equivalent Ratio (LER) (1.65) and Relative Value Total (RVT) (1.72 (was recorded in 30 plant.m-2 onion and 12 plant.m-2 fenugreek and 30 plant.m-2 onion and 25 plant.m-2 fenugreek combination culture respectively.
JOURNAL OF AGRICULTURAL SCIENCE AND SUSTAINABLE PRODUCTION
University of Tabriz
2476-4310
27
v.
3
no.
2017
201
214
https://sustainagriculture.tabrizu.ac.ir/article_6646_3c977853b77d0393317a6aea758a7c1d.pdf