Study on Rational Irrigation for Wheat Production in Fengqiu Region: Ⅱ. A Model of Rational Irrigation forWheat and Its EvaluationEnglish Full Text
ZHOU LINGYUN and CHEN ZHIXIONG(Institute of Soil Science, Chinese Academy of Sciences, P.O. Box 821, Nanjing 210008 (China))
Abstract: A 5-year experiment on water balance was conducted in a flat rainfed wheat field with an area of 66 m×100 m in Fengqiu, Henan Province, China. Based on the results of the 5-consecutive-year experiments,a reasonable irrigation model for wheat cultivation is suggested according to the principle of maintaining balance of the water resources. The irrigation program was designed by simulating the ideal soil moisture regimes during a wheat season. As far as the actual soil moisture was concerned, its deyiation from the ideal soil moisture was kept within 150 mm. If this model was put into practice, a grain yield of 5 250 kg ha-1 could be expected under optimal fertilization. Compared with the traditional irrigstion scheme, the suggested model saved irrigation water by 18%.
- Series：
(D) Agriculture
- Subject：
Fundamental Science of Agriculture; Agronomy
- Classification Code：
S152
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