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鉴于当前化肥使用效率低下和农业面源污染严重的情况,为实现化肥使用量零增长这一目标,通海县进行了积极的探索,引进“爱果利丰”控释肥在莴苣上进行肥效试验,为农业生产减肥增效提供科学依据,试验采用随机区组设计。结果表明,“爱果利丰”控释肥对莴苣生产有一定的增产效果,最佳施用量是900 kg/hm~2,增产0.94%。减少肥料施用量效果明显,比对照少用肥料1 080 kg/hm~2,减48%。
In view of the current inefficient use of chemical fertilizers and serious agricultural non-point source pollution, Tonghai County has actively explored the goal of achieving zero growth of chemical fertilizer use by introducing the “Controlled Release Fertilizer” on lettuce Test, to provide a scientific basis for weight loss and efficiency of agricultural production, the trial design using randomized blocks. The results showed that the control effect of “Aiguoli Li-Feng” controlled-release fertilizer had some effects on the production of lettuce. The best application rate was 900 kg / hm ~ 2, yield 0.94%. Reduce the amount of fertilizer application effect is obvious, less fertilizer than the control 1 080 kg / hm ~ 2, by 48%.