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作者研究了广泛用于农业的浓缩氮肥——无水氨杀蛔虫卵的作用和影响杀卵的因素,并比较了无水氨和氨水的效果,此外还研究了生物废料中含氨氮的浓度。所研究的生物废料有固体和液体的人类和猪粪以及污水。实验用50毫升玻璃瓶或200～500毫升玻璃罐,用橡皮塞或塑料薄膜盖住。每1克基质中加入1～16克氨,在不同条件下共试验了9种氨浓度。基质中含氨量用常用的化学分析法测定。用虫卵培养方法及有感染期
The author studied the role of concentrated ammonia nitrogen fertilizer-anhydrous ammonia in killing Ascaris eggs and the factors affecting egg killing. The effects of anhydrous ammonia and ammonia water were also compared. In addition, the concentration of ammonia-containing nitrogen in biological waste was also studied. The biological waste studied has both solid and liquid human and pig manure as well as sewage. Experiments with 50 ml glass bottles or 200 ~ 500 ml glass cans, covered with rubber or plastic film. 1 to 16 grams of ammonia were added per 1 gram of substrate and 9 ammonia concentrations were tested under different conditions. The amount of ammonia in the matrix is determined by the usual chemical analysis. With egg culture methods and infection period