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硝烂田多分布于我省雅安、名山等地的老冲积黄壤台地下部的低洼地区或排水不良的丘陵漕沟中,从其形态特征和生产性能来看,类似于我国东南沿海各省农民所称的“咸酸田”、“泛酸田”,科学资料上一般称为“酸性硫酸盐土”、“强酸性盐渍水稻土”。硝烂田过去多为冬水田,种水稻每亩尚能产600斤左右,但在水旱轮作之后种水稻,则产量显著下降,有的甚至颗粒无收。硝烂田在放干冬水后,为什么会影响水稻生长呢?通过我们在名山县百丈公社长征坝的调查分析,硝烂田影响水稻生长的障碍因素主要是土壤呈酸性反应。土壤PH值低至3.2
Nitrogen was mostly distributed in the lowland areas of the lower part of the alluvial yellow soils, such as Ya’an and Miaoshan, or poorly drained hills and trenches in the Ya’an and Miaoshan Mountains. From the perspective of their morphological characteristics and productivity, Called the “acid field”, “Pantothenic acid”, the scientific information commonly known as “acid sulfate soil”, “strong acid saline paddy soil.” In the past, most of the fernted fields were winter paddy fields, and rice varieties could still produce about 600 kilograms per mu. However, after the rotation and planting of paddy rice, the yield dropped markedly, and some of the crops even went down. After we put dried winter water in the wasteland, why does it affect the growth of rice? Through the investigation and analysis of the Changzhengba of Baizhang commune in Mingshan County, the main obstacle that affecting the rice growth is the acidity of the soil. Soil pH is as low as 3.2