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Response of aquasorb, fertilizer and their interaction to growth and yield of potato
Authors
俞满源
山仑
方锋
黄占斌
Publication date
1 January 2003
Publisher
Abstract
在陕北半干旱地区对马铃薯(SolanumtuberosumL.)进行保水剂及保水剂配施氮肥田间应用试验,苗期保水剂采用两种用法(沟施、穴施)、两个深度(5cm、10~15cm)处理,现蕾期追施氮肥形成保水剂及保水剂配施和氮肥交互组合处理,研究保水剂及保水剂配施氮肥的增产效应。结果表明:在苗期,保水剂使马铃薯的冠幅面积增加11.8%~54.8%;保水剂结合氮肥,可以提高不同阶段马铃薯叶片的光合速率,增加花期生物积累量46.7%~98.8%,延长马铃薯茎叶生育期14~15d,增加马铃薯块茎产量75.0%~108.3%,特别是直径较大商品薯的产量。不同方式施用保水剂都能促进马铃薯生长,增加块茎产量,其中以保水剂开沟深施10~15cm结合氮肥效果最佳
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Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources
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Last time updated on 21/09/2018