草原施肥对牧草产量和质量的作用及其经济效益分析  

Effect of Applying Fertilizer on the Yield and Quality of Herbage and Economical analysis of Herbage Production

作　　者：李楠[1] 宋建国[1] 刘伟[1] 龚长虹[1] 

机构地区：[1]吉林农业大学资源与环境学院,长春130118

出　　处：《黑龙江农业科学》2001年第2期16-18,共3页Heilongjiang Agricultural Sciences

摘　　要：本试验采用回归设计 ,研究草原施肥后对牧草产量及质量的影响 ,并对牧草生产进行经济效益分析 ,结果表明 :草原施肥是草原增产、增收、保护地力的最佳措施 ,施肥最佳组合为N93.8kg/hm2 、P2 O575kg/hm2 、ZnSO4 37.5kg/hm2 ,与对照相比可增产干草 2 6 34kg/hm2 ,增加纯收益2 6 3.4元 /hm2 。The experiment was conducted with an optimum regression design, studying effects of applying fertilizer on the yield and quality of herbage and economical benefit of herbage production. The results showed that applying fertilizer was an optimum method of increasing yield, income and protecting soil fertility of grassland. The optimum combination of applying fertilizer on grass land was N 93.8 kg/hm 2, P 2O 5 75 kg/hm 2, ZnSO 4 37.5 kg/hm 2.The dry grass increased more than 2634 kg/hm 2 and the net income increased 263.4 Yuan/hm 2, compared with control.

关 键 词：草原 施肥 产草量 经济效益 牧草质量 

分 类 号：S812.4[农业科学—草业科学]