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Systemic study on nutrients in irrigation desert soils of Gansu Province
Author(s): 
Pages: 105-107
Year: Issue:  1
Journal: CHINESE JOURNAL OF ECO-AGRICULTURE

Keyword:  灌漠土土壤养分科学施肥;
Abstract: 温室盆栽与田间试验研究河西走廊民勤灌漠土养分结果表明,盆栽灌漠土缺N、P、Cu、Fe和Zn,未施N、P、Cu、Fe和Zn处理的高粱相对产量分别为47.38%、68.77%、70.91%、78.40%和80.21%;而N肥和P肥为大田该灌漠土主要限制因子,大田试验最佳处理(OPT)增施N、P肥可显著提高玉米产量,增幅分别为11.95%和22.60%,而减N处理玉米产量则显著降低,减幅为10.40%.
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