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机构地区:[1]新疆农垦科学院作物所,新疆石河子832000
出 处:《新疆农业科学》2010年第10期1958-1962,共5页Xinjiang Agricultural Sciences
基 金:国家"十一五"科技支撑计划项目(2006BAD21B01-1X);公益性行业(农业)科研专项经费项目(nyhyzx07-004-07-01)
摘 要:【目的】为高产大豆品种新大豆1号的栽培推广提供科学的理论依据和技术指导。【方法】研究3种不同施肥水平处理下(F0:空白,对照;F1:种肥磷酸二铵5 kg/667 m2,无追肥;F2:种肥磷酸二铵5 kg/667 m2+追肥磷酸二铵10 kg/667 m2和油渣26 kg/667 m2)新大豆1号高产群体生理指标。【结果】F2处理下的小区产量与F1、F0存在显著差异。在F2施肥处理下,新大豆1号群体的叶面积指数(LAI)、总光合势、干物质积累总量均最大;净同化率的2次高峰在开花盛期和鼓粒期。【结论】在F2施肥处理下,新大豆1号高产群体叶面积指数(LAI)是3.85,总光合势达264.82×105(m2.d)/hm2;净同化率的2次高峰在开花盛期和鼓粒期,分别为5.87和5.15 g/(m2.d);干物质积累总量为11 330.9 kg/hm2。【Objective】The experiment aim was to provide scientific theoretical basis and technical guidance for Xindadou1 cultivation and extension.【Method】This experiment was carried out to reveal the effects of three fertilization levels(F0 F1 F2)on yield and physiological parameters of soybean,using high yielding variety"Xindadou 1."(F0: CK; F1: seed manure: diammonium phosphate 5 kg per mu;no topdressing.F2: seed manure diammonium phosphate 5kg per mu + topdressing diammonium phosphate 10kg per mu and oil residue 26 kg per mu).【Result】The results showed that the yield in the plot was significantly different compared with F1,F0.LAI,total leaf area duration(LAD),the total of dry matter of F2 were higher compared with F1,F0.Peaking time of net assimilation rate of F2 were in full flowering stage and pod-filling stage.【Conclusion】The highest leaf area index(LAI) of F2 reached 3.85,total leaf area duration(LAD) of F2 was 264.82×105(m2·d)/hm2.Peaking time of net assimilation rate were in full flowering stage and pod-filling stage,were 5.87 g/(m2·d),5.15 g/(m2·d) respectively.The total of dry matter was 11 330.9 kg/hm2.
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