论文部分内容阅读
玉溪县城关公社瓦窑大队有耕地4166亩,其中稻谷面积2942亩,平均每人占有稻田0.6亩,稻田中有2400亩是傍山台田,靠东风水库保灌,排灌便利。农肥来源较多。稻田(包括全部水田面积)土壤普查结果,属于土壤肥力较高的有1386.4亩,占44.48％,属于中等肥力的有1437.1亩,占46.10％,属于低肥的256.5亩,占8.2％。各类土壤养分的平均含量:碱解氮29.7斤/亩,有效磷1.6斤/亩,有效钾9.18斤/亩,有机质在1.75—3.09％之间,pH4.8—7.7。总的说来,或多或少地具有获得高产的基本条件。但是,多年以来水稻产量不高不稳,1974—78五年中,单产一直在868—940斤波动,总产在241.7—280.4万斤徘徊。而稻瘟
There are 4166 mu of arable land in Yuxi County Chengguan Commune Way kiln brigade, of which 2942 mu of paddy area occupies an average of 0.6 mu of rice paddy fields, and 2,400 mu of paddy fields are paved with mountain slopes. It is convenient for irrigation and drainage by Dongfeng Reservoir. More sources of fertilizer. The results of the census of paddy fields (including the total area of paddy fields) are 1386.4 mu (44.48%), 1437.1 mu (46.10%) of moderate fertility and 256.5 mu (8.2%) of low fertility. The average content of various types of soil nutrients: 29.7 kg of alkali hydrolysis of nitrogen / mu, available phosphorus 1.6 kg / mu, available potassium 9.18 kg / acre, organic matter in 1.75-3.09%, pH4.8-7.7. In general, the basic conditions for obtaining high yields are more or less achieved. However, the output of rice has not fluctuated for many years. In the five years from 1974 to 1978, yields have been fluctuating between 868-940 kg and the total output hovered at 241.7-280.4 kg. And rice blast