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Effects of Straw Incorporation and Reduction of Chemical Fertilizer on Soil Nutrients and Crop Yield in Farmland

机译:秸秆掺入与化学肥料对农田土壤养分及作物产量的影响

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It's adopted the method of field experiments studied the effects of straw incorporation and reduction of chemical fertilizer on soil nutrients and crop yield, through the treatments of no fertilizer + straw (NS), optimized fertilization with straw to field the full amount (SF), optimization by providing optimization of biological humic acid fertilizer + basal was applied without straw (NSC), optimization of nitrogen and phosphorus fertilizer by 20% + total amount of straw to field (S_(0.8)F), optimization of fertilizer nitrogen and phosphorus by 40% + total amount of straw to field (S_(0.6)F) process. The results showed that, rape - rice rotation crop yield under both conditions showed NSC > SF > NS > S_(0.8)F > S_(0.6)F, wherein the NSC has the significant differences compared with NS, S_(0.8)F and S_(0.6)F (P < 0.05) and has no significant differences compared with SF (P > 0.05). Rapeseed - rice rotation field soil organic matter content are expressed as: SF > S_(0.8)F > S_(0.6)F > NSC > NS, and straw treatments significantly improve the soil organic matter (P <0.05). Changing trend of total nitrogen content in rice season is: NSC > S_(0.8)F > SF > NS > S_(0.6)F, and soil nitrogen content trends: NSC > SF > S_(0.8)F > S_(0.6)F > NS. Rapeseed season paddy soil total nitrogen content trends: NSC > SF > S_(0.8)F > NS > S_(0.6)F, and soil nitrogen content trends: NSC > S_(0.8)F > SF > S_(0.6)F > NS. Among them, the difference between treatments was significant (P < 0.05). Rapeseed season and trends of soil potassium content in rice season performance: NSC > SF > S_(0.8)F > NS > S_(0.6)F, also, the SF, soil potassium content NSC, S_(0.8)F processing, such as processing and NS showed significant difference (P < 0.05). Crop yield trends were showed as: NSC > SF > NS > S_(0.8)F > S_(0.6)F. It concluded that the implementation of straw would help to improve the carbon and nitrogen content of the soil and to increase the crop yields. To a certain extent, taking the reduction of chemical fertilizers would reduce the soil nutrient content and crop yield. But the implementation of straw can replace a certain amount of fertilizer. This study could provide the technical basis for the green agriculture and increase agricultural environmental action.
机译:它采用田间试验研究通过不施肥+秸秆处理(NS),优化用稻草肥还田的全部金额(SF)秸秆还田和减少对土壤养分和作物产量,化肥的效果的方法,通过提供生物腐殖酸肥料+基底的优化优化而不稻草(NSC)中,由20%秸秆+总量的氮和磷的肥料的优化字段(S_(0.8)F),通过优化肥料的氮和磷的施加吸管40%+总量字段(S_(0.6)F)的过程。结果表明,油菜 - 两种条件下水稻轮作作物产量表明NSC> SF> NS> S_(0.8)的F> S_(0.6)F,其中所述NSC与NS,S_(0.8)F和相比具有显著差异S_(0.6)F(P <0.05),并且具有与SF(P相比无差异显著> 0.05)。油菜籽 - 稻旋转场土壤有机质含量表示为:SF> S_(0.8)的F> S_(0.6)的F> NSC> NS,和稻草处理显著改善土壤有机质(P <0.05)。在稻季节改变总氮含量的趋势是:NSC> S_(0.8)的F> SF> NS> S_(0.6)F和土壤氮含量的趋势:NSC> SF> S_(0.8)的F> S_(0.6)的F > NS。油菜籽季稻谷土壤总氮含量的趋势:NSC> SF> S_(0.8)的F> NS> S_(0.6)F和土壤氮含量的趋势:NSC> S_(0.8)的F> SF> S_(0.6)的F> NS 。其中,处理间的差别是显著(P <0.05)。油菜籽季节和在水稻季节性能土壤钾含量的趋势:NSC> SF> S_(0.8)的F> NS> S_(0.6)F,也行,SF,土壤钾含量NSC,S_(0.8)的F处理,如处理和NS显示显著差异(P <0.05)。作物产量的变化趋势表现为:NSC> SF> NS> S_(0.8)的F> S_(0.6)F。它的结论是秸秆的实施将有利于提高土壤的碳和氮的含量,并增加作物产量。在一定程度上,以化肥的减少将降低土壤养分含量和作物产量。但是秸秆的实现可以代替一定量的肥料。该研究可为绿色农业的技术基础,提高农业的环保行动。

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