Chen Xiao-ping, Xie Ya-jun, Luo Guang-en, Shi Wei-yong
Ministry of Education Key Laboratory of Environmental Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310029, China.
Ying Yong Sheng Tai Xue Bao. 2011 Jul;22(7):1803-9.
In this paper, silkworm excrement was harmless-treated via controlled fermentation to prepare silkworm excrement organic fertilizer (SEOF). The nutrient properties of the SEOF were determined, and a pot experiment was conducted to examine the application effect of the fertilizer. After fermentation, the total N, P, and K contents in the SEOF had a significant increase, being 58.0%, 84.4% , and 29.7% higher than those in the raw material, respectively. The addition of microbial inoculants shortened the fermentation period, and decreased the carbon and nitrogen losses during fermentation. With the application of SEOF, the seed germination index of cabbage and tomato was higher than 80% , suggesting that the fertilizer had no inhibitory effect on the seed germination. The application of SEOF not only increased the Chinese cabbage yield and its nutrients and Vc contents, decreased the plant nitrate content, but also improved the soil pH value, and increased the soil available nutrients and organic matter contents and soil enzyme activities, with better effect than applying composted goat feces.
本文通过控制发酵对蚕沙进行无害化处理，制备了蚕沙有机肥（SEOF）。测定了SEOF的养分特性，并进行了盆栽试验以考察该肥料的施用效果。发酵后，SEOF中的全氮、磷、钾含量显著增加，分别比原料中的含量高58.0%、84.4%和29.7%。添加微生物菌剂缩短了发酵周期，并减少了发酵过程中的碳氮损失。施用SEOF后，白菜和番茄的种子发芽指数高于80%，表明该肥料对种子发芽无抑制作用。施用SEOF不仅提高了大白菜产量及其养分和Vc含量，降低了植株硝酸盐含量，还改善了土壤pH值，增加了土壤有效养分、有机质含量和土壤酶活性，效果优于施用堆肥山羊粪。
