wheatyield相关论文
Excessive application of N fertilizer contributes substantially to high levels of nitrate(NO3--N)in surface and groundwa......
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Influence of 34-years of fertilization on bacterial communities in an intensively cultivated black s
Although the effects of chemical fertilization management on microbial communities in soils have been well studied,few s......
研究了不同密度农桐间作条件下,土壤养分随时间变化的规律及发与小麦产量之间的关系,结果表明:不同密度对Fe含量有一定影响,而对有机质,N,P,K,Mn,Zn和......