Effect of Sulphur Fertilization on Sulphur Balance in Soil and Productivity of Wheat in a Wheat–Rice Cropping System

Autor: Shiveshwar Pratap Singh, Mukesh Prasad Singh
Rok vydání: 2014
Předmět:
Zdroj: Agricultural Research. 3:284-292
ISSN: 2249-7218
2249-720X
DOI: 10.1007/s40003-014-0124-8
Popis: The productivity of wheat–rice cropping system is declining over time despite adequate supply of major nutrients. It may be due to deficiency of nutrients like sulphur. A field experiment was conducted with treatments consisting of three sulphate–sulphur (0, 15, 30 and 45 kg ha−1) levels to study the sulphur balance and productivity of wheat in wheat–rice cropping sequence in a sandy clay loam soil. The direct effect of sulphate fertilization showed significant increase in wheat yield, while, the residual effect in rice was not significant. The agronomic efficiency and apparent sulphur recovery decreased with increase in levels of sulphate but the percent response increased with increasing sulphate application. Application of sulphur showed the positive sulphur balance, while, it was negative under control. A major portion (50–67 %) of applied sulphur contributed to increase in sulphur content of root zone soil followed by unaccounted component (24–39 %) and small portion (9–13 %) was absorbed by wheat plant as uptake.
Databáze: OpenAIRE