结合盆栽实验,对稻田土壤氮素矿化的几种方法进行了比较,结果表明:KC I煮沸法和碱解氮法是很好的测试土壤供氮能力的方法,淹水培养法矿化氮量与植物全氮含量相关性不高;而采用淹水培养间歇淋洗法和淹水密闭连续培养法对稻田土壤进行土壤氮素矿化的淋溶试验,结果表明:淋洗有利于土壤氮素的矿化过程。 Combined with pot experiments, several methods of paddy soil nitrogen mineralization were compared, the results showed that: KC I boil method and alkaline hydrolysis nitrogen method is a good method for testing soil nitrogen supply, flooding culture method of mineral nitrogen The correlation between nitrogen content and plant nitrogen content was not high. However, the leaching experiment of soil nitrogen mineralization in paddy soil was carried out by intermittent leaching method and flooding closed continuous culture method. The results showed that leaching was beneficial to soil nitrogen The mineralization process.