Effects of Continuous Mineral and Organic Fertilizer Inputs and Ploughing on Groundnut Yield and Soil Fertility in a Groundnut-Sorghum Rotation in Central Burkina Faso

作     者：E. Compaore P. Cattan J. B. S. Taonda 

作者机构：INERA Farako-Bd Agricultural Research Station 01 B.P. 910 Bobo-Dioulasso 01 Burkina Faso INERA Center for Environment and Agricultural Research and Training Kamboinse 01B.P. 476 Ouagadougou 01 BurkinaFaso CIRAD Neufchateau-Sainte-Marie Research Station Capesterre-Belle-Eau 97130 France 

出 版 物：《Journal of Agricultural Science and Technology(A)》 (农业科学与技术（A）)

年 卷 期：2011年第1卷第3X期

页      面：335-343页

学科分类：090101[农学-作物栽培学与耕作学] 09[农学] 0903[农学-农业资源与环境] 0901[农学-作物学] 090301[农学-土壤学] 

主　　题：Groundnut-sorghum rotation mineral and organic fertilizers soil fertility yields. 

摘      要：Two field experiments were conducted at Saria in the centre of Burkina Faso in order to assess the effect of chemical and organic fertilizers on yields and soil fertility on two different soils. Groundnut haulm yield, pod yield, number of pods, % 2-seeded pods, % pod rot, seed yield and 100 seeds weight as well as sorghum dry shoot and grain yields were measured. Most of the different variables were affected by continuous cropping without fertilizer application on the two soils, in particular on the coarse one. The effect of nutrient deficiencies was observed. The mineral fertilizers maintained yields, but their supply was not able to replenish the nutrient uptake by plants. The effect of compost on crop production was initially minimal, but improved during years seven and height. Tillage had also a slightly positive effect on yield, which varied with soil type. In the control plot, the content of organic matter decreased in five years and did not increase with the application of fertilizers. In contrast, addition of fertilizers increased total N and Bray-I P. Nitrogen, P, K and Ca balances were negative in almost all treatments without mineral fertilizers. Results showed that fertilizers used were inadequate for maintaining soil fertility and yields in long run. However, extra production did not provide significant profits.