tailieunhanh - Effect of organic manures, organic supplements and biofertilizers on growth and yield of cowpea [Vigna unguiculata (L.) Walp]

Biofertilizers play a significant role in fixing atmospheric nitrogen, production of growth promoting substances and making phosphorous available to the plants hence the application of biofertilizers is very essential to the plant (Upadhayay et al., 1999). |

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