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聚乙烯醇。这种塑料具有一定的粘性,能粘凝松散的泥土,改善土壤结构,使沙土变成蓄水保肥
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为筛选有效缓解白术连作障碍的土壤改良剂,以生石灰(A)和腐植酸颗粒肥(B)作为土壤改良剂,各设3个水平,采用两因素随机区组设计,其中以未施用土壤改良剂(A1B1处理)为对照,研究施用土壤改良剂对连作白...
《河南农业科学》 2020年03期 关键词: "白术"," 连作"," 土壤改良剂"," 生石灰"," 腐植酸颗粒肥"," 产量"," 药材质量"," 病害"," 土壤酶活性" 收藏
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