不同比例有机肥替代化肥对小麦产量的影响

Effect of different proportion of organic fertilizer instead of chemical fertilizer on wheat yield

通过田间试验,研究不同比例有机肥替代化肥对小麦(Triticum aestivum L.)产量的影响,以期为江苏省常州市金坛区小麦施肥探索到最佳有机肥替代比例。结果表明,有机肥与无机肥配合施用能有效减少化肥施用,小麦产量随有机肥替代比例增加呈先上升后下降的趋势,其中20%替代效果最佳,能有效保障小麦增产;但是如果有机肥替代比例过高,则会引起小麦贪青晚熟现象,不利于高产和下季作物种植。

The influence of different proportion of organic fertilizer instead of chemical fertilizer on wheat yield was studied through field experiment, so as to find the best proportion of organic fertilizer for wheat fertilization in Jintan district of Changzhou city of Jiangsu province. Results showed that combinative application of organic and inorganic fertilizer could effectively reduce inorganic fertilizer dosage, and wheat yield tended to increase first and then decrease with the increase of replacement ratio of organic fertilizer, of which 20% replacement effect was best, could effectively guarantee the wheat yield.But if replacement ratio of organic fertilizer was too high, it would cause wheat over-green growth and late-maturing, and was not conducive to high yield and the next season crop.