生物有机肥替代部分化肥对甘蓝生长及产量的影响

Effects of Bio-Organic Fertilizers Substituting Partial Chemical Fertilizers on the Growth and Yield of Cabbage

为降低化肥过量施用造成资源浪费和环境污染,提高肥料利用效率,筛选出适宜当地甘蓝栽培的生物有机肥种类,开展3种生物有机肥替代部分化肥试验,探究生物有机肥配施适宜的化肥对甘蓝的生长和产量的影响。结果表明,氮肥施用量减少30%,配施75 kg/hm2中农绿康绿地康生物冲施肥的处理(T8)效果最优,产量较不施肥和农户常规施肥分别增加77.75%、47.92%,适宜在当地甘蓝种植中推广使用。

In order to reduce the waste of resources and environmental pollution caused by excessive application of chemical fertilizers, improve the use efficiency, and screen out the suitable types of bio-organic fertilizers for local cabbage cultivation, the experiments were carried out to use three kinds of bio-organic fertilizers to replace part of the chemical fertilizers, in order to study the effects of suitable application of bio-organic fertilizers on growth and yield of cabbage. The results showed that the application of 70% nitrogen fertilizer and75 kg/hm~2 water soluble fertilizer(Sino Green Agri-Biotech T8) could achieve the optimal yield, increasing by 77.75% and 47.92% respectively, compared with no fertilization and conventional fertilization, which could be applied in the planting of local cabbage.