中文摘要：

农业节水可以通过工程、农艺、生物及管理等综合措施来实现。为了达到农业节水的目的，对地膜覆盖条件下土壤温度、水分变化状况，覆膜旱作早稻若干生物学特性及养分吸收状况作了研究。结果表明，水稻覆膜旱作具有明显的土壤保墒增温作用。覆膜旱作稻分蘖数、株高、地上部干重、根长、根重均明显大于裸地旱作，分蘖数、地上部干重、根重明显大于常规水作。覆膜旱作稻N、P、K养分吸收量及产量也明显大于裸地旱作及常规水稻，并能节约60％～70％的用水量。

英文摘要：

The soil temperature, moisture in mulched film, nonflooded and submerged paddy fields and some biological properties and nutrient uptakes of early rice plants under film mulching cultivation were studied in the paper. The results show that the soil temperature and moisture in paddy fields mulched by film are dearly increased, compared to nonflooded and submerged paddy fields. The tiller number, height, main root length, root and shoot weight of mulching rice are larger than nonflooded rice, and the tiller number, root and shoot weight of mulching rice are larger than flooded rice. N, P, K nutrient absorption of mulching flee are more, and the grainyield is higher, with the water saving amount of 60% - 70%.