潢川县再生稻化肥减量增效试验研究

为探索研究再生稻化肥减量施用对经济生态效益影响,加快化肥减量增效集成技术推广,促进农业转型升级。试验分别设置不施任何肥料、100%常规施肥、80%常规施肥、60%常规施肥、40%常规施肥和配方施肥六个处理。结果表明,100%常规区和80%常规区,化肥施用量偏大,虽然经济效益较高,但不符合国家“增产施肥、经济施肥、环保施肥”的理念；60%常规区和配方区,化肥施用量与合理的再生稻施用化肥量相近,而配方区经济效益更高；40%常规区和无肥区,化肥施用量虽少,但粮食产量和经济效益太低,偏离了“粮食稳定增产、农民持续增收”的总方向。在实际生产上,再生稻按照配方区施肥配比,即能确保粮食稳产增产、农民增加收入,又能减少化肥用量、保护生态环境。

Experimental Study on the Reduction and Increase of Chemical Fertilizer of Ratooning Rice in Huangchuan County

In order to explore and study the impact of the application of chemical fertilizer reduction in ratooning rice on economic and ecological benefits, accelerate the promotion of chemical fertilizer reduction and efficiency integration technology, and promote the transformation and upgrading of agriculture. The experiment set up six treatments: no fertilizer, 100% conventional fertilization, 80% conventional fertilization, 60% conventional fertilization, 40% conventional fertilization and formula fertilization. The results show that in 100% conventional areas and 80% conventional areas, the amount