Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2005, Vol. 21 ›› Issue (3): 336-336.

Special Issue: 小麦

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Studies on Effects of Irrigation Systems in Spring on Winter Wheat in Eastern Area of Hebei

Wang Wenpo, Zhou Yinfu, Li Yansheng, Han Jinling   

  • Online:2005-03-05 Published:2005-03-05

Abstract: The effects of irrigation systems in spring on winter wheat were studied in eastern area of Hebei. The results showed that many times irrigation was more than few times irrigation in the leaf area index, slower in the decreasing of leaf area index, later in the time of the maximum rate of grain filling. With the increasing of irrigation times in spring, the spike number per hectare, grain number per spike, 1000 grains weight increased. The grain yields of 4 times, 3 times and 2 times irrigation were extreme significantly higher than that of one times and no irrigation, but the difference of grain yields among 4 times, 3 times and 2 times irrigation was not significant. However, the water use efficiency of irrigation declined with increasing of irrigation times in spring. For the higher-yield and water-saving, the spring irrigation system of winter wheat in eastern area of Hebei should be that 2 times irrigation were respectively conducted at jointing stage and at booting stage on the basis of irrigation at winter.