施肥对海伦市连作大豆产量的影响

试验针对海伦大豆长期连作,重迎茬现象严重,盲目施肥的现象,比较了不同矿质肥料与平衡施肥对连作大豆产量的影响。试验结果表明:与平衡施肥相比较,不施钾肥、氮肥和锌肥分别减产54.6%、13.4%和8.4%,不施硫肥和磷肥分别减产4.7%和3.9%,不施肥(CK0)减产28.6%,农民习惯施肥(FP)减产14.4%。

There are some problems in the soy bean＇s cultivation. Such as long term cultivating, the severe phenomenon of continuous soybean cropping and aimless fertilization. This research directs towards the balanced fertilization test, aiming to solve these problems. It resulted in a reduction in output by 54.6%, 13.4% and 8.4% without potash fertilizer, nitrogenous fertilizer and zinc fertilizer. It resulted in a reduction in output by 4.7% and 3.9% without sulfur fertilizer and phosphate fertilizer, and 28.6% with none, 14.4% in peasants＇ habitual way of fertilization than etc.