Effect of synthetic and natural water absorbing soil amendment soil physical properties under potato production in a semi-arid region
文献类型： 外文期刊
作者： Xu, Shengtao 1 ; Zhang, Lei 3 ; McLaughlin, Neil B. 2 ; Mi, Junzhen 1 ; Chen, Qin 4 ; Liu, Jinghui 1 ;
作者机构： 1.Inner Mongolia Agr Univ, Oat Sci & Tech Innovat Team, Hohhot 010019, Inner Mongolia, Peoples R China
2.Agr & Agri Food Canada, Eastern Cereal & Oilseed Res Ctr, Ottawa, ON K1A 0C6, Canada
3.Yunnan Acad Agr Sci, Inst Econ Crops, Kunming 650205, Yunnan, Peoples R China
4.Northwest A&F Univ, Coll Agron, Yangling 712100, Shaanxi, Peoples R China
关键词： Soil amendments;Water holding capacity;Soil cone penetration resistance;Soil aggregate size fractions;Tuber yield
期刊名称：SOIL & TILLAGE RESEARCH （ 影响因子：5.374； 五年影响因子：6.368 ）
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收录情况： SCI
摘要： Effect of synthetic and natural water absorbing soil amendments on soil physical properties, fresh tuber yield and size of potato production was investigated in a field experiment in a semi-arid region in northern China in 2010-2012. Treatments included two different synthetic water absorbing amendments (potassium polyacrylate-PAA, polyacrylamide-PAM) and one natural amendment (humic acid-HA), both as single amendments, and compound amendments (natural combined with a synthetic) and a no amendment control. Soil amendments had highly significant effect (P <= 0.01) on soil water holding capacity, soil cone penetration resistance and soil aggregate size fractions, but had no significant effect (P> 0.05) on soil bulk density. Soil amendments increased fresh tuber yield by 4.2-32.9%, increased the proportion of tuber size category 1 (>150 g) and decreased size category 3 (<75 g) in all the three years. The compound amendment, with PAM + HA, showed best effect of all amendment treatments on soil physical properties in potato production, and deserves further research. (C) 2014 Elsevier B.V. All rights reserved.
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