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通过温室内田间小区试验,在固定的灌水周期情况下研究了不同灌水定额对秋冬茬青椒生长、产量及水分生产效率的影响,以确定青椒的适宜灌溉制度,为日光温室秋冬茬青椒膜下滴灌合理灌溉提供科学的参考依据。结果表明:当灌溉定额在一定范围内时,青椒株高、茎粗随着灌水定额的增大而增大,但当灌溉定额超过280mm时,灌水将抑制青椒的生殖生长,导致青椒产量下降,水分生产效率降低;当灌溉定额为260mm时,产量和水分生产效率最高。
The effects of different irrigation quotas on the growth, yield and water production efficiency of green peppers in autumn and winter were studied under field irrigation in a greenhouse to determine the appropriate irrigation system for the green peppers. Reasonable irrigation provides a scientific reference. The results showed that when the irrigation quota was within a certain range, the height and stem diameter of green pepper increased with the increase of irrigation quota. However, when the irrigation quota exceeded 280 mm, irrigation would inhibit the reproductive growth of green pepper and lead to the decrease of yield of green pepper, The water production efficiency is reduced; when the irrigation quota is 260mm, the yield and the water production efficiency are the highest.