灌水控制上限对辣椒生长及耗水量的影响

Effects of Irrigation Upper Control Limit on Growth and Water Consumption of Pepper

为了探究灌水控制上限对辣椒生长、产量及耗水量的影响,对盆栽辣椒的株高、茎粗、产量及耗水量进行了监测研究。结果表明:不同灌水控制上限会对辣椒的株高、茎粗、产量及耗水量产生不同程度的影响,若考虑辣椒长势和最终产量,灌水量控制在80%θ田上限为佳;若考虑节水,则将灌水量控制在50%θ田上限、灌水间隔为9d为佳;综合考虑辣椒产量与全生育期耗水量,应将灌水量控制在70%θ田上限、灌水间隔为7d,可以达到高产、节水的目的。

In order to study the effects of irrigation upper control limit on the growth, yield and water consumption ot pepper, the height, stem diameter, yield and water consumption of peppers planted in pots are monitored. The results show that different irriga- tion upper control limit has different influence on the growth, yield and water consumption of pepper. If the growth and yield are considered, the irrigation upper control limit should be 80%θ of the field capacity. If the water saving is considered, the irrigation upper control limit should be 50%θ of the field capacity with the irrigation interval of 9 days. In order to get high yield and saving water, the irrigation upper control limit should be 70%θm of the field capacity with the irrigation interval of 7 days.