就覆膜旱作栽培方式对早稻和单季稻病虫草害、天敌、腐食者等的丰盛度与为害程度影响作了研究。结果表明,稻田覆膜旱作可显著降低早稻纹枯病的发生程度,与常规淹水对照稻田相比,覆膜旱作稻田纵卷叶螟为害率、灰飞虱和蚜虫类虫口密度及杂草发生程度无显著差异,但螟虫为害加剧,施肥量仅对照田一半的覆膜田螟虫为害株百分率比对照田提高2.4％～8.5％。水稻覆膜旱作栽培方式和种植密度高低是影响寄生蜂和蜘蛛类密度的主要因子。覆膜旱作栽培方式下单季稻纹枯病株发病率明显低于常规水稻,但纵卷叶螟和稻飞虱、蚜虫、叶蝉等刺吸式昆虫密度无明显影响,各处理田块间螟虫为害率也无显著差异。覆膜旱作稻田杂草中的细毛毡类覆盖度与常规淹水稻田无显著差异,但细双子叶杂草减少,新的阔双子叶杂草增加。覆膜旱作田天敌及腐食者密度低于灌溉田。 The effects of film-mulched cultivation on the abundance and damage of pests and weeds, natural enemies and decayers in early rice and single cropping rice were studied. The results showed that dry film mulching in paddy field could significantly reduce the incidence of early rice sheath blight. Compared with the conventional paddy rice paddy, the damage rate of the rice leaf roller, the population density of Laodelphax striatellus and the aphid insects, The incidence of grass was no significant difference, but the damage of stem borer was aggravated. The percentage of the infected stem borers with half of fertilizers was only 2.4% ~ 8.5% higher than that of control field. The main factors affecting the density of parasitoids and spiders are the dry cultivation methods and planting densities of rice lamina. The incidence of single season rice sheath blight was significantly lower than that of conventional paddy rice under dry film mulching cultivation. However, the density of thorn-sucking insects such as rice leafhopper, aphid and leafhopper had no significant effect. No significant difference in damage rates. There was no significant difference in the coverage of fine felts among the weed covered with dry film mulched rice, but the weed in the fine dicotyledon was decreased and the number of new weeds in the dicotyledon was increased. The density of natural enemies and decayed earthen irrigated fields was lower than that of irrigated fields.