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南阳地区鸭河口水库,总库容11.2亿立米,兴利库容7.0亿立米,可灌溉南阳、新野、唐河、方城和社旗五县共200余万亩农田.灌区自1969年发挥效益以来,产量逐年提高,到1976年,粮食平均亩产484斤,棉花平均亩产87.5斤。但产量还没有达到《纲要》的要求。近年灌区也有不少突破亩产粮食千斤的大队,说明增产潜力还很大。产量不高的原因主要是灌区大面积黑土上浸地没有得到很好的改造,以及主要种植作物(特别
Nanyang area Yahekou reservoir, with a total storage capacity of 1.12 billion cubic meters, Xing Li storage capacity of 700 million cubic meters, irrigation Nanyang, Xinye, Tanghe, Fangcheng and Sheqi five counties total more than 200 acres of farmland irrigation area since 1969, Output increased year by year, by 1976, average grain yield of 484 kg, average yield of 87.5 kg of cotton. However, the output has not yet reached the requirements of the “Outline”. In recent years, there have been many irrigations in the irrigation area that have produced large grain output, indicating that the yield potential is still high. The reason for the low output is mainly that the soils on large areas of black soil in irrigated areas have not been well rebuilt and the main crops planted