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黄土丘陵沟壑区干旱缺水,玉米产量低而不稳。腐植酸配方肥与地膜覆盖是两种节水抗旱和提高玉米产量的新技术,通过对这两项技术的综合试验表明:地膜覆盖对玉米苗期土壤增温和保水效果明显,促进了作物苗期的生长发育。腐植酸配方肥实现了养分平衡供给,增强了作物的抗旱性,提高了作物的产量。腐植酸配方肥与腐植酸液膜覆盖相叠加,使玉米增产幅度最大,增产率达27.7%。这一新的栽培模式对黄土区玉米丰产具有重要的意义。
The loess hilly and gully areas are arid and dry with low and unstable maize yield. Humic acid fertilizer and plastic film mulching are two kinds of water-saving drought-resistant and improve corn production of new technologies, through a comprehensive test of these two technologies showed that: plastic film mulching on corn seedling soil temperature and water retention effect is obvious, and promote crop seedlings Period of growth and development. Humic acid fertilizer to achieve a balanced supply of nutrients to enhance the drought resistance of crops and improve crop yields. Humic acid formula fertilizer and humic acid film covered with superposition, so that corn yield the largest increase rate of 27.7%. This new cultivation mode is of great significance to the high yield of corn in loess area.