The effect of different rates and forms of sulphur applied on changes of soil agrochemical properties

Plant, Soil and Environment

Skwierawska M.¹  Zawadzki B.:¹  Zawartka L.¹ 

关键词: soil;    sulphur;    sulphate;    soil pH;    nitrogen;    available phosphorus;    potassium;   

DOI  :  

学科分类：农业科学（综合）

来源: Czech Academy of Agricultural Sciences

【 摘 要 】

A three-year field experiment was conducted from 2000 to 2002 in North-East Poland. Each year three sulphur fertilization rates in the form of sulphate (S-SO2�?4) and pure (S-S0) sulphur were applied: 40, 80 and 120 kg/ha. In the soil horizon at the depth of 0�?40 cm the triple rate of S- and S-S0) depressed soil reaction. Acidification of soil caused by S-SO2�?4 became evident already in the first year of the study while that resulting from S-S0) application appeared as late as in the third year. The effect of sulphur on soil in the 40�?80 cm horizon was irregular. As the sulphur rates increased and the duration of the experiment progressed, sulphates accumulated in soil. In the 0�?40 cm soil layer, the increasing rates of sulphur tended to increase the content of N-NH+4. In most objects, the NPK + S fertilization, and especially the single S-SO2�?4 treatment, caused an increase in N-NO�?3 in both soil layers compared with the NPK fertilized object. The dose of 120 kg/ha S-SO2�?4 caused a significant increase in the concentration of available phosphorus in soil in the 0�?40 and 40�?80 cm layers.

【 授权许可】

Unknown