龟裂碱地沙质客土填深对蔬菜作物生长的影响

Effect of Exotic Sandy Soil Depths on Vegetable Crops Growth in Takyric Solonetz

针对龟裂碱土水分不渗透的问题,通过田间试验设计了5个不同的填沙深度,分别为5、7.5、10、12.5、15cm,探讨龟裂碱土沙质客土填深对蔬菜作物(番茄、油麦菜和圆白菜)生长和产量的影响。结果表明,龟裂碱地在填加沙质客土后能够使蔬菜作物很好的生长,且填沙深度对作物生长有很大的影响,填沙深度越深越促进作物的生长。随着填沙深度的增加,番茄株高增幅可达9.6%,产量增幅达70.1%;油麦菜根体积增幅达75.2%,产量增幅为89.7%以及圆白菜产量增幅为35.8%。因此,通过采用填加沙质客土的方法改善了龟裂碱地土壤水分状况,促进了作物的生长,为龟裂碱土的农业开发利用提供了参考。

In view of the impermeable problem in takyric solonetz, a field experiment was conducted to investigate the effect of the sand-filled depths on the growth and yield of vegetable crops （tomato, lettuce and cabbage） with drip irrigation. The experiment consisted of five different sand-filled depths, which is 5, 7.5, 10, 12. 5 and 15 cm, respectively. The results showed that the sand- filled takyric solonetz could make these vegetable grow well, and the sand-filled depths had a great influence on crop growth, the deeper sand-filled depth could promote the vegetable crops growth. With the increase of sand-filled depth, the plant height increment of tomato could reach 9.6%, the yield of tomato increased by 70.1%; the root volume of lettuce increased by 75.2%, the yield of lettuce increased by 89.7%, and the yield of cabbage increased by 35.8%. Therefore, the method of filling sand can improve soil water status in takyric solonetz, promote vegetable crops growth, and provide a reference for developing and using the takyric solonetz.