SOIL CHEMICAL PROPERTIES AND DRY MATTER YIELD OF CORN AS INFLUENCED BY ORGANIC MATTER AMENDMENT
Keywords:
Organic Matter Amendment, dry matter yield, mucuna, chicken manure, corn cob, corn stover, sunflowerAbstract
The study was conducted to evaluate the influence of corn cob, corn stover, sunflower, chicken manure and mucuna on a strongly acidic soil (pH= 4.03; Al =1.45 me/100g) by evaluating its effects on soil chemical properties, root elongation and dry matter yield. Rates of organic materials were 0, 4, 8 and 16 tons/ha. In Completely Randomized Design (CRD) with 3 replications, a total of 18 treatments including calcium carbonate and calcium sulfate were laid out. Corn cob, corn stover and chicken dung
application at 4, 8 and 16 tons/ha increased the soil pH, but not all treatments revealed significant difference over the control. Maximum rate of corn cob (16 tons/ha) and all rates of chicken manure were established to be comparable with lime application (CaCO3). Along with the five organic materials, chicken manure was determined to be effective and promising organic resource due to its favorable effect to several of the chemical properties which showed significant increase in root length and dry matter
yield. Throughout its application, pH was increased, marked organic matter build up, exchangeable aluminum (Al) greatly reduced and phosphorus availability was significantly increased.
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