2009•Xibei zhiwu xuebaoRequires access
Winter wheat yield and soil nutriments affected by organic fertilizer in Loess Plateau East of Gansu.
Jianjun Zhang, Fan Tinglu, Yong Wang, Xiaoming Tang, Dang Yi
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Abstract
The effect of the different organic fertilizers on the yield of winter wheat,water use efficiency(WUE) and soil fertility were investigated with Longjian 301 as material from 2005 to 2008 in Loess Plateau East of Gansu.The results showed that different fertilizer treatments evidently influenced the yield of winter wheat,WUE and soil nutrients.For all organic fertilizers,yield of winter wheat,water use efficiency and soil fertility of NP chemical fertilizer combined with Bio-mixed organic fertilizer(T1) were the highest,and the soil water content of 0～60 cm at harvesting stage was the lowest.For T1 treatment,the average yield and WUE increase evidently by 17.53% and 16.42% respectively.Compared to no fertilizer treatment,the organic matter,total nitrogen,available nitrogen and available phosphorus increased by 11.4%,8.9%,0.2% and 19.7% in the T1 treatment respectively.Therefore,the use of NP chemical fertilizer with Bio-mixed organic fertilizer was probably an optimum way to improve soil fertility,grain yield,and WUE in Loess Plateau dry land of Gansu.