水稻“京引39”合理施用氮肥的调查分析

• 作 者: 罗代雄
• 机 构: 宁夏农林科学院土肥研究所,
• 出 处: 宁夏农业科技
• 发表日期: 1980年03期
• 关键词: 氮肥 高产水稻品种 高产稳产 高产品种 施肥技术 施用技术 地力 障碍型冷害 施肥法 产量指标

“京引39”是我区最主要的高产水稻品种,在较大面积上亩产可达1200斤.在高产大队栽培面积达80%以上.有了高产品种,能否实现高产稳产,最重要的影响因素是施肥技术.一般土壤最缺而作物又最大量需要的是氮素,所以氮肥又成为其最敏感的因素.氮肥不足与过剩,或施用技术不当,都难以获得高产稳产的效果,这已是人们所共知的常识.

“JingYing 39” is the most important high-yielding rice variety in our region, with a yield of 1200 kg per mu in a large area and a cultivation area of ​​more than 80% in the high-yielding brigade. With the high-yielding varieties, The most important factor is the fertilization technology.Normal soil is the most deficient and crop needs the most nitrogen is nitrogen, so nitrogen has become the most sensitive factor.Nitrogen deficiency and excess, or improper application of technology, are difficult to obtain high and stable yield Effect, which is common knowledge.