BB肥施用技术研究简报

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BB肥也称掺混肥,是几种单质肥按统一的粒径规格分别造粒混配而成.各种原料N、P、K和微量元素按2-4mm或1.6-4mm粒径分别造粒.颗粒的强度为12-20N,适合机播施肥. BB肥与普通复肥相比,具有配方灵活,能耗物耗低,投入成本少等特点.BB肥中不仅含有优化配比的N、P、K三大元素,还含有作物生育过程中所必需的特殊微量元素并具有高含量,高强度,低成本的生产优势.其总养分含量可在30-45%区间随机调整,达到高效施用.为了验证BB肥在不同土
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