【摘要】 研究了龟裂碱地填沙深度和秸秆覆盖对番茄和油葵生长、光合生理以及产量的影响。结果表明,填沙深度极大地影响作物生长,填沙深度越深,越有利于作物的生长;填沙深度对油葵叶片的气孔导度影响显著,而秸秆覆盖对其无显著影响。相同灌溉条件下,秸秆覆盖时番茄、油葵产量增幅达46.4%、40.8%,且均比无覆盖的作物产量高。填加沙质客土解决了龟裂碱土水分不易入渗的问题,改善了土壤水分状况,促进了作物生长。更多还原

【Abstract】 The effects of sand-filled depths and straw mulching on growth,photosynthetic physiology and yield of crops(tomato and oil sunflower)were studied.Results revealed that the sand-filled depth had a great influence on the growth of crops and the deeper depth could greatly promoted crop growth.Sandfilled depth had an obvious impact on leaf stomatal conductance of oil sunflower,but the effect of straw mulching was not significant.Yield of tomato and oil under straw mulched increased by 46.4%and 40.8% under the same irrigation condition,and the yield under straw mulched was greater than that without mulch.Adding sandy soil to takyric solonetz could solve the problems of soil water infiltration,improve soil moisture and promote crop growth.更多还原