【摘要】 在甘肃省张掖市灌溉区,通过大田试验初步分析了波涌灌溉条件下西兰花的种植效益。结果表明:在整个生育期内,波涌灌溉(Ns)处理与连续灌溉(Nc)处理对照,连续灌溉西兰花水分利用效率为109.03kg/hm2·mm,产量为26.525t/hm2,而波涌灌溉按照循环率为1/2、1/3和1/4时,水分利用效率依次增长为10.4%、30.2%和60.6%,产量依次增长为6.13%、13.48%和14.42%。波涌灌溉在提高灌水质量及产量上有明显效果,但灌水均匀度的大小与循环率的关系不明显。更多还原

【Abstract】 The benefit of broccoli grown under surge irrigation in irrigation area of Zhangye City was analyzed primarily.The results showed that in the reproductive period,the water use efficiency and yield of Nc were 109.03 kg/ hm2·mm and 26.525 t/hm2,but in accordance with recycling rate from the order of 1/2 to 1/4,water use efficiency of surge irrigation increased by 10.4%,30.2% and 60.6% successively,and the yield increased by 6.13%,13.48% and 14.42% in proper order.Surge irrigation has obvious effects in improving the irrigation quality and the yield,but there was not significant relation between the irrigation uniformity size and the cycling rate.更多还原