秋施尿素肥效好

• 作 者: 司秉芝
• 出 处: 农资科技
• 发表日期: 1995年06期
• 关键词: 土壤颗粒 作物吸收利用 秋作物 溶液的浓度 局部浓度 挥发损失 秋翻 整平耙细 叶时 盖土

秋作物收获后,在耕地时,施入尿素供来年春作物吸收利用,除省工省时省力外,还有以下几点好处:一是解决了烧种问题。尿素秋施在土壤中越冬,早春随气温逐渐升高,尿素氨化后便吸附在土壤颗粒上,缓慢释放出氨,避免了局部浓度过高时种子产生不利影响。如春播用尿素做种肥,尿素吸水溶解,使种子周围上溶液的浓度骤然升高而产生生理烧种。二是减

After harvesting autumn crops, when arable land is cultivated, urea is applied to absorb and utilize the crops in the coming spring. Apart from the labor-saving and time-saving labor, there are also some advantages as follows: First, the seed-burning problem is solved. Autumn urea application in the soil winter, early spring with the temperature gradually increased, urea ammoniated adsorption on the soil particles, the slow release of ammonia, to avoid the local concentration is too high when adversely affected by the seeds. Such as spring planting with urea as a kind of fertilizer, urea water absorption, so that the solution around the seed concentration suddenly increased physiological burn seed. Second, minus