Effect of Phosphorousand Intercroppingon The Nutritive Value of Maize (Zea mays)and Lablab bean(Lablab purpureus

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Imam Ali Buri, Leema
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A field experiment was conducted at the Demonstration Farm of the University of Khartoum to determine the effect ofphosphorous fertilization and intercropping on the nutritive value ofZea maysand Lablab purpureus. The field experiment was arranged as split plot design with four replications. The main plots were (Lablab purpureus as sole crop, Zea maysas sole crop, Lablab purpureus mixture andZea mays mixture). The sub plot treatments were phosphorous fertilization at the rate of (0, 50 and 75 kg P2O5 / ha) which were then referred to as P0, P1 and P2 respectively. Samples of 45 days cut from sowing were used to asses the ash, Crude protein (CP), Ether Extract (EE), Crude Fiber (CF), Neutral Detergent Fiber (NDF) and dry matter digestibility. The results revealed that intercropping and phosphorous fertilization caused a significant increased on the CP content and dry matter digestibility (P>0.05) of all crops under estimated. Intercropping and phosphorous fertilization caused non– significant effect (P<0.05) on the ash content for all crops in this study. Moreover, Intercropping and phosphorous fertilization caused a decrease on the CF and NDF content of all crops under estimated but with no significant difference. However, Intercropping caused non–significant effect (P<0.05) on the EE content of Zea mayswhile, intercropping had a positive influence (P>0.05) on the EE content of Lablab purpureus. The data obtained indicated that phosphorous fertilization caused non–significant effect on the EE content of all crops in this study (P<0.05) except Lablab purpureus in the mixture which increased (P>0.05) by increasing phosphorous level. It can be concluded that Intercropping and phosphorous fertilization improved the nutritive value of both Zea mays and Lablab purpureus.