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Issue:
Study on gradation index of shangjiang black soil water in Huaibei Area
Author(s):
Qi Huan Zhu Yanwen Qi Shang'en Li De Lu Qinqin Sun Youfeng
Pages:
51
-
53
Year:
2008
Issue:
3
Journal:
Anhui Agricultural Science Bulletin
Keyword:
GetLinkList(KeywordFilter('砂礓黑土
;
墒情等级
;
指标')
;
'kw'
;
'CJFQ')
;
Abstract:
依据2002年6月至2005年5月的土壤水分试验观测资料和宿州市农业气象试验站1990—2005年砂礓黑土大田土壤水分观测资料,筛选出696组样本资料,分别用保证率法、平均值法、点聚图法、建立回归方程等4种方法,综合得出淮北地区砂礓黑土主要农作物冬小麦、夏玉米不同发育段的土壤水分等级指标,在近两年的干旱预报和服务应用中,效果较为理想。
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