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采用田间小区试验的方法 ,对覆膜穴播水稻进行了不同灌水量的处理 ,在生长前期进行了小气候观测和水稻生育性状、产量构成的观测。试验表明 ,覆膜穴播技术能充分利用前期的光热资源 ,不同灌水量处理的田间土壤水分含量在后期趋于一致 ,随灌水量减少 ,收获穗数减少 ,穗粒数增加 ,千粒重减少。考虑到节水与稳产相统一的目的 ,在引黄灌区推广覆膜穴播栽培技术 ,节水1/ 3～ 1/ 2是可以实现的。
Field experiments were conducted to study the effect of different irrigation levels on the paddy-sowing paddy and the observation of microclimate and rice growth traits and yield components at the early stage of growth. The results showed that the film-mulching and sowing technology could make full use of the light and heat resources in the early stage. The field soil moisture content of different irrigation volume tended to be consistent in the later period. With the decrease of irrigation volume, the number of ear harvest decreased, the number of grain per spike increased and the grain weight decreased. Taking into account the purpose of water-saving and stable production phase, in the Yellow River irrigation area to promote film-mulched sowing cultivation techniques, saving 1/3 to 1/2 is achievable.