因此，当无灌溉条件降雨又少时，地膜覆盖甜菜受干旱威胁更大，故在干旱无灌溉地区不宜推广地膜覆盖技术。
Therefore, there were more menace to sugar beet covered with plastic film when in dry condition, no irrigation and little rain. So, the techniques of cover...
因此，当无灌溉条件降雨又少时，地膜覆盖甜菜受干旱威胁更大，故在干旱无灌溉地区不宜推广地膜覆盖技术。
Therefore, there were more menace to sugar beet covered with plastic film when in dry condition, no irrigation and little rain. So, the techniques of covered with plastic film...
因此，当无灌溉条件降雨又少时，地膜覆盖甜菜受干旱威胁更大，故在干旱无灌溉地区不宜推广地膜覆盖技术。
Therefore, there were more menace to sugar beet covered with plastic film when in dry condition, no irrigation and little rain. So, the techniques of covered with plastic film is inadvisable to...
随着科学技术的进步，实施地膜覆盖栽培，使传统的栽培技术有了新的突破，生产水平明显提高。
With progress of scientific technology, film cultivation broke through traditional cultivation skill, obviously increased production level.
这项技术突出的特点是：把解决旱地冬小麦生长期缺水问题的重点放在降雨高峰期，将天然降雨蓄、盖、聚在土壤中，并与冬小麦全生育期地膜覆盖穴播有机的结合起来。
Key point of the technique is to solve water shortage during winter wheat growing period by collecting water from peak rainfall in summer fallow season and storing it in the soil bank.
地膜覆盖具有增温和保墒的作用，是旱作农业的一项重要技术。
The plastic mulching irrigation is an important technique in dryland farming, which can increase temperature and conserve soil moisture.
地膜覆盖种植技术可大幅度提高作物单产水平，因而得以大面积推广应用，但用过的地膜不能及时回收，滞留在田间，对土壤及生态环境都造成了污染。
Plastic film laying on crop is widely used in China, but most of the used films are left inthe fields after harvesting, and pollution is made both to the soil and environment.
地膜覆盖种植技术可大幅度提高作物单产水平，因而得以大面积推广应用，但用过的地膜不能及时回收，滞留在田间，对土壤及生态环境都造成了污染。
Plastic film laying on crop is widely used in China, but most of the used films are left inthe fields after harvesting, and pollution is made both to the soil and environment.
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