Effect of irrigation interval, organic manuring and P and K fertilization levels on faba bean seed quality and phosphorus use efficiency attributes under sandy soil conditions
2010
Abdel Galil, A.A. | Omar, A.E.A. | Mowafy, S.A. | Mokhtar, T.S.
.Shortening the irrigation interval resulted in a significant increase in seed coat percentage but decreased the swelling and hydration coefficient and the seed protein content. In contrary, swelling and hydration coefficients as well as seed protein content were increased due to organic manuring or addition of P up to 31 kg P205/fad. The increases in these characters due to addition of P fertilizer were on expense of seed coat percentage. Narrowing the irrigation interval or organic manuring increased P uptake and all the P fertilization efficiency attributes. Though, total P uptake was increased significantly with each P increment up to the higher level tested, the last tried increment followed without or with adverse effects on P fertilization efficiency attributes. Doubling the K fertilization level increased most of P fertilization efficiency attributes Significant first order interactions were detected, where narrowing the irrigation or the addition of FYM was effective to increase all the P fertilization efficiency attributes and hence decrease the need for phosphorus fertilizer.
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