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Effects of long-term located fertilization on yield and quality of sweetpotato
Author(s): 
Pages: 57-61
Year: Issue:  1
Journal: Acta Agriculturae Zhejiangensis

Keyword:  long-term fertilizer experimentsweetpotatoyieldquality;
Abstract: 以1980年建立的砂壤质潮土土壤肥力与肥料效益长期监测基地(徐州点)的长期肥料定位试验为研究平台,研究长期不同施肥制度对甘薯产量和品质的影响.结果表明:有机肥(M)处理产量普遍高于化肥处理,差异达极显著水平(P<O.01);不施肥(CK)条件下淀粉和糖类积累速率比施肥处理干物质积累的速度快;施肥有利于淀粉积累,尤其是钾肥(K)在淀粉合成过程中作用明显,有利于淀粉型甘薯生长.施氮(N)有利于碳氮代谢...
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