不同配方蚕沙有机无机复混肥在叶菜类蔬菜上的效果研究

Research on the effects of different formulas of organic-inorganic complex fertilizer from silkworm excrement on leafy vegetables

通过盆栽试验,对由蚕沙作为主要有机物料研制的有机无机复混肥的不同配方在生菜和青菜上的施用效果,及其对植株吸收养分和土壤养分供应的影响进行研究。试验结果表明,施用配方1、2、3的蚕沙有机无机复混肥的青菜分别比对照增产35.1%、16.2%、42.1%;生菜增产33.0%、23.4%、38.5%。施用3个配方的蚕沙有机无机复混肥与对照相比,具有促进植株对N、P、K养分吸收的作用,长期施用蚕沙有机无机复混肥对提高和保持土壤养分是有益的。

In this paper, the effects of uptake of nutrient from three formulations of organic- inorganic complex fertilizer which mainly contains silkworm excrement as the organic materials by lettuce, greengrocery and soil nutrient supplying were investigated through pot experiment. Results in pot experiment showed that ： The yields of greengrocery increased by 35.1%, 16.2%, 42.1% respectively in the application formulation Ⅰ , formulation Ⅱ , formulationm of organic- inorganic complex fertilizer from silkworm excrement compared with conventional inorganic fertilizers; The yields of lettuce increased by 33.0%, 23.4%, 38.5%. The application of organic- inorganic complex fertilizer from silkworm excrement could accelerate vegetables uptake of nutrient of N, P, K compared with conventional inorganic fertilizers. Long - term fertilization of organic - inorganic complex fertilizer from silkworm excrement could help the accumulation of soil organic matter and improvement of nutrient retention capacity.