Polyacrylamide(PAM),as an ameliorant of soil,can immobility surface soil and reduce the runoff,to preserving nitrogen in the soil at utmost.
PAM(聚丙烯酰胺,Polyacrylamide,简称PAM)作为土壤改良剂,能固定表土、减少径流,使氮素最大程度的保留于土壤。
参考来源 - PAM对紫色土坡地氮素迁移淋失的控制效应·2,447,543篇论文数据，部分数据来源于NoteExpress
The new desert ameliorant , successfully trial - produced by Jiangxi Yitang industry Co.
江西伊塘实业公司试制成功新型沙漠改良剂，并获得国家专利。
The study was conducted to investigate the effects of the compound meat quality ameliorant on carcass traits, organ coefficient and muscle composition of meat ducks.
研究酵母硒和茶多酚配伍的复合肉质改进剂对育成鸭屠宰性能、脏器系数和肌肉成分的影响。
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