水稻应用复合生物固氮肥的效果  

The effect of complex biological azotobacter fertilizer on rice

作　　者：黄慧德[1,2] 

机构地区：[1]中国热带农业科学院热带农业经济研究所 [2]中国热带农业科学院科技信息研究所,海南儋州571737

出　　处：《广东农业科学》2011年第10期45-46,共2页Guangdong Agricultural Sciences

基　　金：农业部热作农技推广与体系建设项目(RZNJ27)

摘　　要：复合生物固氮肥是一种生物菌肥,施用后可以增加土壤中的氮素,能提高土壤肥力。在水稻田的施用,结合水稻常规施肥增施复合生物固氮肥,可明显提高稻谷产量,水稻早造平均增产率47.1%,平均增产2 083 kg/hm2,平均纯增收3 921元/hm2;水稻晚造平均增产率19.4%,平均增产1 156 kg/hm2,平均纯增收2 172元/hm2。The nitrogen content in the soil will increase and the soil fertility will improve after application of the complex biological azotobacter fertilizer which is a biological fertilizer.Adding complex biological azotobacter fertilizer can significantly increase rice yield,combined with conventional fertilization of rice.The results showed that the early rice yields increase by 47.1% and2 083 kg/hm2 on an average,bringing net profits about RMB 3 921 yuan/hm2.On the other hand,the late rice yields increase by 19.4%and 1 156 kg/hm2 on an average,bringing net profits about RMB 2 172 yuan/hm2.

关 键 词：水稻 生物固氮肥 应用效果 

分 类 号：S144.5[农业科学—肥料学]