نوع مقاله : مقاله پژوهشی
نویسندگان
گروه مهندسی تولید و ژنتیک گیاهی، دانشکده کشاورزی، دانشگاه شهید چمران اهواز، اهواز، ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Objectives: The aim of this study was to investigate the effects of crop residue management and chemical control of weeds population under the influence of incorporation, burning and removal of residues and chemical control of weeds.
Materials and Methods: This study was performed as split plots in a randomized complete block design with three replications. Treatments include management of crop residues in the main plots (incorporated wheat residues in the soil with conventional tillage, burning wheat residues with minimum tillage and removing wheat residues with zero tillage); Weed control treatment in subplots; uncontrol, hand weeding, 2,4-D as post emergence + mung bean mulch, atrazine + 2,4-D as post emergence and 2,4-D as post emergence.
Result: The results show that the maximum dry weight of the total weeds was observed in the 60 and 90 days after sowing in the control treatment under conservation tillage was 97 and 337 g m-2, respectively. The average comparison results showed that the highest amount of nitrogen, phosphorus and potassium depletion by weeds related to zero tillage was observed in the control treatment and the lowest amount of these elements was observed in hand weeding in all 3 main factors..
Conclusion: In general, among the weed management treatments, incorporation of wheat residue and hand weeding once were more effective compared to zero tillage and green mulch treatments. Therefore, plant residues can be used as one of the integrated control components such as hand weeding along with other weed control methods.
کلیدواژهها [English]
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