豇豆喜温耐热,在35℃的高气温下仍能正常生长结荚,但温度降至15℃以下时,则生长显著减缓。北京地区,大致以5月至8月为最适宜豇豆生长发育的季节。在这期间,豇豆的产量与生长期的长短呈正相关。即自4月下旬至9月初这段时间内,豇豆的生长日期越长,财产量越高。根据这一相关性,若将北京近郊传统的豇豆直播种植法改为育苗移栽法,在适合豇豆生长发育 Cowpea hi temperature heat, 35 ℃ high temperature can still grow normally pods, but the temperature dropped to below 15 ℃, the growth significantly slowed down. Beijing, roughly May to August as the most suitable season of cowpea growth and development. During this period, the yield of cowpea was positively correlated with the length of the growing season. That is, from late April to early September this period, cowpea growing longer, the higher the amount of property. According to this correlation, if the traditional suburban Beijing cowpea planting method changed to seedling transplanting method, suitable for cowpea growth and development