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Effect of Compost and Animal Manure on Cowpea (Vigna unguiculata (L.) Walp) Productivity in Maradi, Niger Republic, Using Zai Technology

Research Paper | August 10, 2022

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Charipatou Abdou Mainassara, Aminu Alhassan Fagge, Ali Malam Labo Mohamed, Shehu Usman Yahaya, Aisha Muhammad Aliyu

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Int. J. Biosci.21( 2), 189-198, August 2022

DOI: http://dx.doi.org/10.12692/ijb/21.2.189-198


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Cowpea (Vigna unguiculata L. Walp.) is an important leguminous crop largely grown by smallholder farmers in Niger for food security. Field trials were carried out during the 2019 rainy season in Dangali and Dan Bouzou, villages of Mayahi, department of Maradi region, Niger Republic, to determine the effect of organic manure on cowpea productivity using the zai technique. The IT 99 K-573-1-1 cowpea variety was used as plant material. The experimental design consisted of 16 combinations of compost and animal manure, with compost (0t/ha, 3t/ha, 6t/ha, and 9t/ha) and animal manure (0t/ha, 5t/ha, 10t/ha, and 15t/ha) in a randomized complete block design with three replications. The results revealed that the yields obtained were not statistically significant between the treatments, except at Dan Bouzou. Nevertheless, numerically, the greatest value for compost about gain yield (1025kg/ha) was obtained by the combination zai + of compost (3t/ha). For animal manure, 1292kg/ha of grain yield was achieved by the combination zai +animal manure (15t/ha). It should be noted that the yield of 1292 kg/ha of zai + animal manure (15t/ha) was higher than the yield of 1025 kg/ha of zai + compost (3t/ha) which is also higher than the yield of 617 kg/ha of zai only. This technique is effective, but its effectiveness depends on the good distribution of precipitation over time and space during the rainy season.


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Effect of Compost and Animal Manure on Cowpea (Vigna unguiculata (L.) Walp) Productivity in Maradi, Niger Republic, Using Zai Technology

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