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水稻专用长效控释BB肥是在普通BB肥的基础上 ,采用天然植物素、作物营养添加剂和肥料增效长效剂等制成复合材料后 ,通过混合展着工艺制成。应用效果表明 ,水稻施用本控释BB肥有较明显的增产效果 ,比当地施肥处理增产 6.0 %～ 1 0 .2 % ,施肥经济效益提高 1 0 .6% ;比普通BB肥(等养分 )处理增产 5 .2 % ;在同等产量水平下 ,比普通BB肥减少肥料施用量 2 5 %。水稻长效控释BB肥的氮素利用率为 45 .9%～ 5 1 .2 % ,明显高于当地施肥处理和普通BB肥。水稻长效控释BB肥 ,一次基施满足水稻一造的营养需求 ,较彻底地简化了水稻施肥技术 ,达到“省工、省肥、增产、高效、低污染”的效果。
The special long-term controlled release BB fertilizer for paddy is made on the basis of ordinary BB fertilizer by using natural plant-based fertilizer, crop nutrient additive and fertilizer synergistic long-acting agent and the like, and then made into a composite process. The results showed that the application of the controlled release BB fertilizer had obvious effects on the yield increase of rice, which increased 6.0% -1.2% compared with the local fertilization treatment and the economic benefit of fertilization increased by 1.06%. Compared with the ordinary BB fertilizer (equal nutrient) Processing yield increase of 5.2%; at the same level of production, reduce the amount of fertilizer application 25% than ordinary BB fertilizer. The nitrogen use efficiency of long-term controlled release BB fertilizer was 45.9% -52.2%, which was significantly higher than that of local fertilization treatment and ordinary BB fertilizer. Long-term controlled release of rice BB fertilizer, a base facilities to meet the nutritional needs of a rice made more thoroughly simplify the technology of rice fertilization, to “save labor, fertilize, increase production, high efficiency and low pollution” effect.