生物有机肥对作物生长、土壤肥力及产量的效应研究

Effect of biological organic fertilizer on crops growth, soil fertility and yield

通过7年的生物有机肥试验表明:施用生物有机肥可以使作物保持良好的生长发展态势,促进干物质的积累;长期施用生物有机肥可以显著提高土壤有机质含量与土壤全氮、碱解氮的含量,提高土壤肥力,其中施用生物有机肥15000kg/hm2的处理有机质含量上升的最快,从1996年的1 26%升高到2001年的1 96%。施用生物有机肥可以持续稳定的提高作物产量。施用生物有机肥15000kg/hm2的处理冬小麦年平均产量比常规施肥和对照分别增产1808 14kg/hm2和3652 39kg/hm2;夏玉米产量分别增产2668kg/hm2和5062kg/hm2。

According to 7 years tests of biological-organic fertilizers the results showed that employing biological-organic fertilizers could keep on crops thriving and accelerate dry matter. Content of soil organic matter, soil total nitrogen and alkaline nitrogen were advanced markedly and soil fertility was improved through long-term employing biological-organic fertilizers. The treatment of using biological-organic fertilizers 15000kg/hm^2 soil organic matter content raising was fastest in all treatments. Crops yields could be increased steadily and persistently for employing biological-organic fertilizers. The treatment of using biological-organic fertilizers 15000 kg/hm^2 winter wheat average annual yields increased 1808 kg/hm^2 than traditional fertilizers and 3652 kg/hm^2 than control; in this condition summer maize average annual yields increased 2668kg/hm^2 than traditional fertilizers and 5062kg/hm^2than control.