Soybean protein hydrolysate-formaldehyde-urea block copolymer for controlled release fertilizer
文献类型： 外文期刊
作者： Liu, Na 1 ; Qu, Ping 3 ; Huang, Hongying 3 ; Wei, Zhengying 1 ;
作者机构： 1.Xi An Jiao Tong Univ, Sch Mech Engn, Xian, Peoples R China
2.Xinjiang Acad Agr Sci, Inst Agr Mechanizat, Urumqi, Peoples R China
3.Minist Agr, Jiangsu Acad Agr Sci, Key Lab Crop & Livestock Integrated Farming, Circular Agr Res Ctr, Nanjing, Peoples R China
4.Univ Florida, Dept Agr & Biol Engn, Gainesville, FL 32611 USA
关键词： Nitrogen; soybean protein hydrolysate; urea formaldehyde; slow release fertilizer; release mechanism; maize; yield; quality
期刊名称：ENVIRONMENTAL POLLUTANTS AND BIOAVAILABILITY （ 影响因子：1.737； 五年影响因子：1.737 ）
ISSN： 2639-5932
年卷期： 2019 年 31 卷 1 期
页码：
收录情况： SCI
摘要： Urea formaldehyde (UF) was modified by the soybean protein hydrolysate (SPH) to adjust the rate of nitrogen, phosphorus, and potassium (NPK) release. The SPH section can copolymerize into the UF molecules. The crystallinity of modified UF fertilizer decreased with increasing SPH content. The surface of SPH-modified UF fertilizer was loose and porous. The nitrogen content of SPH-modified UF fertilizer decreased a little, but the nitrogen, phosphorus and potassium release rate was improved with increasing SPH content in modified fertilizer. The grain number per ear, thousand-grain weight and total yield were improved by the SPH-modified UF fertilizer. Compared to UF and control, protein, starch, fat, soluble sugar and vitamin C in the maize were increased by applying SPH-modified UF fertilizer. The results indicated that the nutrient release behavior can be adjusted by the introduced SPH to match the maize needs.
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