title: [Effects of sulfur on chemical properties of calcareous soil].
abstract: A pot trial with two continuous crops of rape was conducted to study the effects of sulfur on the chemical properties of calcareous soil. The results indicated that sulfur could decrease soil pH, while increase the electrical conductivity of soil solution markedly. Applying sulfur could enhance the contents of soil exchangeable Na+ and K+ and the accumulation of soil water-soluble anions, but had less effect on soil exchangeable Ca2+ and Mg2+, CEC, and alkalization degree. Comparing with urea, sulfur-coated urea (SCU) had less effect on soil pH and electrical conductivity, but markedly affected soil exchangeable cations and water-soluble anions. Sulfur application had no obvious yield-increasing effect, and higher application rate of sulfur could decrease the rape yield significantly.
authors: College of Resources and Environment, Shandong Agricultural University, Tai'an 271018, Shandong, China. zca2006@sina.com
authors: Chang-Ai
authors: CA
authors: Zhang
authors: Min
authors: M
authors: Zhang
authors: Yue-Chun
authors: YC
authors: Zeng
mesh_terms: D002119:Calcium Carbonate / Q000032:analysis / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D012987:Soil / Q000032:analysis*; D013455:Sulfur / Q000737:chemistry*
chemical_list: D012987:Soil; D013455:Sulfur; D002119:Calcium Carbonate