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白菜是北京市顺义区露地蔬菜种植主要品种之一,种植历史悠久。顺义区白菜灌溉主要以管灌形式进行,蔬菜生产耗水量较大。本试验通过对白菜开展交替灌溉的研究,观测其土壤水分变化和植株生长情况,总结交替灌溉模式对蔬菜生长发育的影响。试验结果表明交替灌溉、改良型交替灌溉在减少灌溉用水的情况下,植株的株高、叶片长势与对照差异不明显,而根系长度、根重得到较显著提高;虽然收获时产量有所减少,但差异不显著;水分生产效率得到显著提高。
Chinese cabbage is one of the main varieties of open field vegetable cultivation in Shunyi District of Beijing, with a long history of cultivation. Shunyi District, cabbage irrigation mainly in the form of irrigation, vegetable production larger water consumption. In this study, we studied the alternation irrigation of Chinese cabbage, observed the change of soil moisture and plant growth, and summarized the effect of alternate irrigation on the growth and development of vegetables. The results showed that under alternate irrigation and improved alternate irrigation, the plant height and leaf growth were not significantly different from the control, but the root length and root weight were significantly increased. Although the yield decreased at harvest, But the difference is not significant; water production efficiency has been significantly improved.