Effect of Different Rates and Mixtures of Solid Household Waste and Faecal Sludge-Based Composts on Soil Fertility and Productivity of Sunflower ( Helianthus annuus L.) in Dschang, West Cameroon — Oak Academic Publishing
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Effect of Different Rates and Mixtures of Solid Household Waste and Faecal Sludge-Based Composts on Soil Fertility and Productivity of Sunflower ( Helianthus annuus L.) in Dschang, West Cameroon
Department of Environmental Sciences of the Higher Institute of Agriculture, Wood, Water and the Environment of the University of Bertoua, Bélabo, Cameroon
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Department of Soil Science, Soil Analysis and Environmental Chemistry Research Unit, Faculty of Agronomy and Agricultural Sciences, University of Dschang, Dschang, Cameroon
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Department of Soil Science, Soil Analysis and Environmental Chemistry Research Unit, Faculty of Agronomy and Agricultural Sciences, University of Dschang, Dschang, Cameroon
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Department of Soil Science, Soil Analysis and Environmental Chemistry Research Unit, Faculty of Agronomy and Agricultural Sciences, University of Dschang, Dschang, Cameroon
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Department of Soil Science, Soil Analysis and Environmental Chemistry Research Unit, Faculty of Agronomy and Agricultural Sciences, University of Dschang, Dschang, Cameroon
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Department of Soil Science, Soil Analysis and Environmental Chemistry Research Unit, Faculty of Agronomy and Agricultural Sciences, University of Dschang, Dschang, Cameroon
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Department of Animal Biology, Faculty of Sciences, University of Dschang, Dschang, Cameroon
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Department of Earth Sciences, University of Yaounde 1, Yaounde, Cameroon
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Department of Soil Science, Soil Analysis and Environmental Chemistry Research Unit, Faculty of Agronomy and Agricultural Sciences, University of Dschang, Dschang, Cameroon
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Department of Soil Science, Soil Analysis and Environmental Chemistry Research Unit, Faculty of Agronomy and Agricultural Sciences, University of Dschang, Dschang, Cameroon
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Department of Mining and Mineral Engineering, National Higher Polytechnic Institute, University of Bamenda, Bambili, Cameroon
1 Department of Environmental Sciences of the Higher Institute of Agriculture, Wood, Water and the Environment of the University of Bertoua, Bélabo, Cameroon
2 Department of Soil Science, Soil Analysis and Environmental Chemistry Research Unit, Faculty of Agronomy and Agricultural Sciences, University of Dschang, Dschang, Cameroon
3 Department of Soil Science, Soil Analysis and Environmental Chemistry Research Unit, Faculty of Agronomy and Agricultural Sciences, University of Dschang, Dschang, Cameroon
4 Department of Soil Science, Soil Analysis and Environmental Chemistry Research Unit, Faculty of Agronomy and Agricultural Sciences, University of Dschang, Dschang, Cameroon
5 Department of Soil Science, Soil Analysis and Environmental Chemistry Research Unit, Faculty of Agronomy and Agricultural Sciences, University of Dschang, Dschang, Cameroon
6 Department of Soil Science, Soil Analysis and Environmental Chemistry Research Unit, Faculty of Agronomy and Agricultural Sciences, University of Dschang, Dschang, Cameroon
7 Department of Animal Biology, Faculty of Sciences, University of Dschang, Dschang, Cameroon
8 Department of Earth Sciences, University of Yaounde 1, Yaounde, Cameroon
9 Department of Soil Science, Soil Analysis and Environmental Chemistry Research Unit, Faculty of Agronomy and Agricultural Sciences, University of Dschang, Dschang, Cameroon
10 Department of Soil Science, Soil Analysis and Environmental Chemistry Research Unit, Faculty of Agronomy and Agricultural Sciences, University of Dschang, Dschang, Cameroon
11 Department of Mining and Mineral Engineering, National Higher Polytechnic Institute, University of Bamenda, Bambili, Cameroon
The unbalanced and inadequate use of fertilizers is one of the causes of soil degradation. Combined with the ever-increasing population, it is necessary to find sustainable agricultural production alternatives. The present work aims to determine the effect of different rates and mixtutes of organic amendments on soil fertility and the performance of Sunflower ( Helianthus annuus L. ). In the field, treatments consisted of solid household waste and faecal sludge in the ratios of 3/5 (V1), and a mixture of faecal sludge and household waste in the ratio of 3/5 with 900 worms (V2). At the end of the composting process, V1, V2 composts and the poultry manure (PM) were applied at rates of 4, 5 and 6 t∙ha − 1 in a randomized complete block design with three replications. Soil samples were collected before and after the experiment and analyzed. The main results revealed that at the end of the composting process, there was a progressive improvement in the physico-chemical properties of V1 and V2 composts. In particular, the C/N ratio, phosphorus (P) and total nitrogen (TN) initially at 16.49 ± 0.42 (V1, V2), 21.06 ± 0.07 mg∙kg − 1 (V1, V2), 0.76% ± 0.08% (V1, V2) respectively, increased after 60 days to 12.40 ± 0.41 (V1), 9.74 ± 0.28 (V2) for C/N, 21.94 ± 0.63 mg∙kg − 1 (V1) and 22.04 ± 0.04 mg∙kg − 1 (V2) for P, 0.96% ± 0.0% (V1) and 1.22 ± 0.04 (V2) for TN. The application of 6 t∙ha − 1 of PM had the greatest influence on the diameter and weight of the flower heads (27.16 ± 4.01 t∙ha − 1 and 230.83 ± 2.64 t∙ha − 1 ), while 4 t∙ha − 1 of V2 gave the tallest sunflower plants (110.07 ± 73.28 cm) as well as the diameter at the crown (19.30 ± 9.07 cm). However, CEC was most influenced by 4 t∙ha − 1 of V1, while 4 t∙ha − 1 of PM had the greatest effect on organic carbon and phosphorus. However, 5 t∙ha − 1 of PM showed the highest sunflower production and yield (1.67 ± 0.21 t∙ha − 1 ). The combination with 900 earthworms is recommended for composting and 5 t∙ha − 1 of PM is recommended to obtain a better sunflower production.
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