水稻专用BB肥施用效果及运筹方法研究

根据江苏宿豫县土壤肥力状况及水稻需肥规律，研制推广水稻专用 ＢＢ肥（２０—８—１７），在有代表性的土壤上进行试验。结果表明：施用水稻专用 ＢＢ肥，有利于稳定水稻群体，减轻病虫危害，增产效果显著，经济效益明显。运筹方法上以每公顷基施 ３７５ ｋｇ专用 ＢＢ肥加 ３７５ ｋｇ碳铵作返青肥，加 １５０ ｋｇ尿素作稳肥效果较好。

Application effect of specialty BB fertilizer for paddy rice and study of operation's research method

Based on the county's fertility of soil and paddy's absorbing rule to fertilizer, specialty BB fertilizer for paddy was developed and taken field trial on typical soil. The result shows that the BB fertilizer is very helpful to stabilize paddy colony and relieve disease, also it has a good increase yield and economic benefit. Its operation's research method is applying 375 kg/hm2 BB fertilizer as base fertilizer then adding 375 kg/hm2 ammonium bicarbonate as turn green fertilizer, and 150 kg/hm2 urea as steady fertilizer.