硫是水稻重要营养元素之一,特别在氮肥用量提高,尿素、碳铵施用量大量增加,使硫、氮比例失调,产生缺硫现象而影响水稻的正常生长发育和高产。为探讨施硫与早稻防止烂秧、培育壮秧的关系,我们从1981年开始,连续三年在早稻秧田进行施硫试验,现将结果总结如下: Sulfur is one of the important nutrient elements in rice. Especially when the amount of nitrogen fertilizer is increased, the amount of urea and ammonium bicarbonate is greatly increased, the proportion of sulfur and nitrogen is imbalanced, sulfur deficiency phenomenon is caused, which affects the normal growth and yield of rice. In order to explore the relationship between applying sulfur and early rice to prevent rotting seedlings and cultivating strong seedlings, we started sulfur test in early rice paddy fields for three consecutive years since 1981, and the results are summarized as follows: