Effects of Liming and Inorganic Fertilizer Application on Soil and Plant Properties in Rural Agriculture in the Eastern Cape Province, South Africa
A study was conducted to demonstrate the beneficial effects of liming and fertilization on the growth and yield of maize on an acid silty clay soil. Trial treatments consisted of three levels of lime application (0, 5, 10 t · ha-1); two levels of inorganic fertilizer (traditional; commercially recommended); and three levels of chicken manure, applied annually. Soil acid saturation and leaf Mn and K were reduced significantly while soil pH, soil and leaf P, Ca and Mg increased significantly with an increase in lime application. Liming had no clear effect on soil K, maize leaf N and Cu, or on maize grain yield. The higher commercial fertilizer level significantly increased soil and leaf P, K, Ca and Mg, leaf N, Mn and Cu, as well as grain yield, compared to the traditional level. Deficiencies in leaf N, P and K were observed in the latter three years. These results emphasize the longevity of liming application and that low soil fertility, followed by soil acidity, is the primary factors limiting soil productivity in the study area.
DJ Beukes TC Mapumulo TP Fyfield GG Jezile
ARC-Institute for Soil, Climate and Water, Private Bag X79, Pretoria 0001, South Africa
国际会议
The 7th International Symposium on Plant-Soil Interactions at Low pH(第七届低pH条件下植物-土壤交互作用国际研讨会)
广州
英文
219-220
2009-05-17（万方平台首次上网日期，不代表论文的发表时间）