通过半腐解秸秆覆盖旱作、地膜覆盖旱作、裸地旱作比较试验，研究了在田间覆盖条件下旱作水稻的生长发育以及产量形成特征。
Some characteristics of rice cultivated in aerobic soil mulched with semi-decomposed straw and plastic film and without any mulch were compared under field conditions.
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.
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