烟中取氮

• 作 者: 李光锐
• 出 处: 中国农业科学
• 发表日期: 1958年12期
• 关键词: 熏肥 燃烧过程 熏烧 中取 速效 空隙 一段 石灰 零陵县 烟熏

我国农民很早就知道利用烟熏土来肥田,这是有科学道理的。因为不论是柴草或煤炭所含的氮素,在燃烧过程中可以生成氨,它同黑烟一起排出时,遇到土壤就被吸入细小的土粒空隙,经过一段时间,这种土壤里面就累积了一定量的氮;同时,土壤经过烟的低温熏烧,还能增加速效钾和磷酸的含量。根据分析,烟熏肥所含肥分如下表。

Farmers in our country have long known that the use of smoky soil to fertilize fields is a scientific principle. Because either the straw or the nitrogen contained in the coal can generate ammonia during the combustion process, it excretes with the black smoke, the soil is sucked into the tiny soil voids, and the soil accumulates over time A certain amount of nitrogen; the same time, the soil smoked by low temperature smoked, but also increase the content of available potassium and phosphoric acid. According to the analysis, the fat content of smoked fertilizer is as follows.