Two field experiments were conducted to study the effect of different rates of
biofertilizer (Phosphorein) combined with different levels of phosphorus on mung bean
plants. Using phosphorein with the rates of 200, 300 and 400 (g) I feddan in
combination with 15.50,23.25 and 31.00 kg P20slfed. promated the vegetative growth
and seed yield of mung bean plants. The highest values of main stem length, number of branches, total leaf area,
dry weight of shoot and seed yield plant, were obtained when the combination
between 200 (g)/ feddan of phosphorein and 23.25 kg P₂0sl feddan was used. The vigor of vegetative growth recorded due to phosphorein application at
the rate of 200 g/fed. in combination with 23.25 kg P₂0s and accompanied with
increasing in amounts of different tissues of stem and leaf specially the vascular
tissues. High values of N, P and K concentrations in both shoots and seeds as well
as chlorophyll a and b in the leaves and protein % in the seeds were recorded by the
plants treated by any of the three different rates of biofertilizer phosphorein either
alone or when combined with any of the three different rates of phosphorus
fertilization if compared with corresponding plants untreated with biofertilizer.
However, a reverse trend was obtained in total carotenoids by the same treatments.