Effect of Trace Element Fertilizer on Yield and Quality of Leymus chinensis
Leymus chinensis cv.‘ Zhongke No.2’ was used as material in the west beach of experimental plot in Yanchi county,the effects of Fe,Mn,Cu,Zn,B and Mo on yield,quality and nutrient uptake of the hay were studied systemically.The results showed that application of trace element fertilizer increased the yield of hay significantly.The hay yield was increased most greatly by applying copper fertilizer,the hay yield was 13 216 kg/hm2,increased by 43.7％ compared with the control plot,the next effective fertilizer is molybdenum fertilizer.Microelement fertilizer increased the uptake of phosphorus and potassium per unit economic output of Leymus chinensis,but had little effect on nitrogen absorption.Boron fertilizer increased phosphorus uptake per unit of economic output by 25.6％ compared with the control,application of zinc fertilizer increased potassium uptake by 10.5％ compared with control;zinc fertilizer increased crude protein mass fraction of Leymus chinensis effectively,and lowered the mass fraction of nitrogen-free extractum,and the mass fraction of crude protein was 9.60％,increased 4.5％ compared with the control,and mass fraction of crude fiber was 34.39％,lowered by 0.3％.Application of copper fertilizer makd the best economic benefit,which could increase inome of 14 781 yuan/hm2,42.6％ higher than the control.
Leymus chinensisHay grass yieldTrace elements fertilizerQuality
NETL
NSTL
万方数据
维普
