沼肥对桑树增产及养蚕效果研究初探

Effect of Biogas Fertilizer on Yield of Mulberry

沼肥是生物质经过沼气池厌氧发酵的产物,其中所含的N,P,K及一些微量元素和生理活性物质为桑树生长提供营养[1],增强桑树光合效能,实现桑叶增产、蚕茧产量增加[2]。试验证明:春季桑园里浇施沼肥的平均每667 m2产桑叶量达3220 kg,比常规施化肥的平均每667m2增产780 kg,增幅达31.99%。

The biogas fertilizer is the product by biomass anaerobic fermentation which contains N, P, K, some trace elements and physiological active substances enhancing the photosynthetic efficiency, and increase the yield of mulberry leaf. The experiment tests in this paper showed that application of biogas fertilizer to mulberry planting obtained a mulberry leaf production of 3220 kg per 667m^2, which was 780 kg more than that applied chemical fertilizer.