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Effect of Compost and Animal Manure on Cowpea (Vigna unguiculata (L.) Walp) Productivity in Maradi, Niger Republic, Using Zai Technology
Charipatou Abdou Mainassara, Aminu Alhassan Fagge, Ali Malam Labo Mohamed, Shehu Usman Yahaya, Aisha Muhammad Aliyu
Int. J. Biosci.21(
2),
189-198,
August 2022.