旱地春小麦全生育期地膜覆盖栽培技术在整个生育阶段有明显的保水效果,增温效应主要在拔节前,并降低地表土壤容重,土壤养分亦发生了有规律的变化,而且具有显著的生物学效应。地膜小麦最高产量可达332.89公斤/亩,试验产量已超过水潜势,接近于热潜势。 The plastic film mulching cultivation technology of spring wheat in dryland during the whole growing period had obvious water-holding effect in the whole growth stage. The warming effect was mainly before jointing, and the surface soil bulk density was reduced, and the soil nutrient also had a regular change, and had significant biology effect. The maximum yield of mulched wheat is up to 332.89 kg / mu. The experimental output has exceeded the water potential and is close to the hot potential.