GROWTH AND YIELD OF BROAD BEAN (Vicia faba L.) AS AFFECFTED BY CHEMICAL AND / OR NATURAL PHOSPHORUS WITH DIFFERENT BIOFERTILIZER.

Abstract

Two field experiments were carried out at Kafr El-Wekala Sherbein Town Mansoura, Dakahlia Governorate, during the winter seasons of 2011 and 2012. The study aimed to investigate the effect of rock phosphate and Ca superphosphate with different sources of bio fertilizer (phosphorein, Microbein, mixture of each as 1: 1 and control) on broad bean plant growth, N and P uptake, yield and its pods quality. It was found that Ca superphosphate application gave rise to higher plant growth characters as well as increased N and P uptake, total yield and its pods characters and dry seeds than plants treated with the rock phosphate. An increase in plant growth and more uptake of N and P in leaves and branches and increased total yield were found by inoculation of broad bean seeds before sowing by the mixture of microbein and phosphorein at rate of 1 : 1. Treatments of the interaction between phosphorus forms with different inoculation bio-fertilizer had no great effect on the nutritional values. The obtained results showed that the application of microbein and phosphorein at rate of 1: 1 to maximize the yield and it may be suitable for broad bean growing under similar conditions.