Evaluating Added Benefits from Combined Cattle Manure and Fertilizer Application in a Maize Cropping System

作     者：Mavis Badu Brempong Andrews Opoku Nana Ewusi-Mensah Robert Clement Abaidoo 

作者机构：Department of Crop and Soil Sciences Kwame Nkrumah University of Science and Technology Kumasi Ghana College of Agriculture and Natural Resources Kwame Nkrumah University of Science and Technology Kumasi Ghana International Institute of Tropical Agriculture (IITA) lbadan Nigeria 

出 版 物：《Journal of Environmental Science and Engineering(B)》 (环境科学与工程（B）)

年 卷 期：2017年第6卷第1期

页      码：34-40页

摘      要：A field experiment was conducted at Kpongu in the Upper West region of Ghana to determine the added benefits in grain yield of maize derived from the concurrent use of manure and mineral fertilizer, and their cost effectiveness. Factorial combinations of cattle manure and mineral fertilizer each at 0, 50 and 100% of their recommended rates were evaluated in both the field and the laboratory studies. The treatments were applied in a randomized complete block design with three replications on the field. The same treatments were applied in the incubation study in a completely randomized design. The use of 100% NPK （Nitrogen, Phosphorus, Potassium） ＋ 5 t manure gave the highest grain yield of 4,678 kg·ha^-1. Synergistic interactions resulting in added benefits in grain yield were observed in all the combined nutrient inputs except 50% NPK ＋ 2.5 t manure which accrued an added disadvantage of 44 kg·ha^-1. Economic analysis proved that 100% NPK ＋ 2.5 t manure and 50% NPK ＋ 5 t manure were the most economically viable combined treatments in terms of grain yield. Based on the results from this study, resource poor farmers in the Upper West region of Ghana may reduce mineral fertilizer recommended rates by 50% and supplement it with 5 t quality （N 〉2.5%） cattle manure without compromising yield and profit.

主 题 词：Synergistic interaction yield value cost ratio. 

学科分类：090502[090502] 0907[农学-草药学] 08[工学] 0905[农学-林学类] 0829[工学-安全科学与工程类] 09[农学] 

D　O　I：10.17265/2162.5263/2017.01.004

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