Agronomic threshold of soil available phosphorus in grey desert soils in Xinjiang, China
文献类型: 外文期刊
第一作者: Wang, B.
作者: Wang, B.;Liu, H.;Wang, X. H.;Sun, J. S.;Hao, X. Y.;Li, J. M.;Ma, Y. B.
作者机构:
期刊名称:2ND INTERNATIONAL CONFERENCE ON AGRICULTURAL AND BIOLOGICAL SCIENCES (ABS 2016)
ISSN: 1755-1307
年卷期: 2016 年 41 卷
页码:
收录情况: SCI
摘要: Based on 23 years of data, yields of maize, wheat and cotton were modelled under different fertilizer management practices and at different levels of available phosphorus (Olsen-P) in soil. Three types of threshold models were used, namely linear-linear (LL), linear-plateau (LP), and Mitscherlich type exponential (Exp). The agronomic thresholds of available phosphorus were 25.4 mg.kg(-1) for cotton, 14.8 mg.kg(-1) for wheat, 13.1 mg.kg(-1) for maize and 25.4 mg.kg(-1) for the grey desert soil regions of Xinjiang in China as a whole.
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