秸秆覆盖对油菜产量的影响
Effect of Straw Covering on Rapeseed Yield
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摘要: 秸秆覆盖能增加土壤温度和湿度,改善土壤理化性状,抑制杂草生长,从而促进油菜生长发育,提高产量和油分含量。增产的主要原因是主花序和第二次分枝的有效角增加。Abstract: Straw covering can increase soil temperature and moisture, improve physico-chemical character,inhibite weed growth,promote rape development and increase the yield and the oil content. The major master sheet of yield increasement lay in increasing the valid silique in main inflorescense and second branching.