Effectiveness of Manure Addition and Mycorrhiza on Phosphorus Uptake and Yield of Maize in Kalitirto Inceptisol

Abstract

This research aimed to determine the effects of cow and goat manure and mycorrhiza on phosphorus uptake and the yield of maize in the first year during conversion from conventional to organic farming systems. The experimental design used a completely randomized block design with three replications. The experimental treatment consisted of three factors: treatment with or without mycorrhiza (at a dosage of 7 g/plant); addition of goat or cow manure; and the dosage of manure (0, 5, or 10 t · ha−1). Total soil P content was analyzed by a wet digestion method with nitric acid and acid perchlorate, and total plant tissue P was analyzed by a wet digestion method with sulfuric acid and peroxide acid. The results of the research showed that cow and goat manure at doses of both 5 t · ha−1 and 10 t · ha−1 plus addition of mycorrhiza significantly increased the chemical properties of the soil such as actual pH, potential pH, available soil P, total soil P, and maize tissue P in the vegetative phase.