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...
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...
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