| publication name | INCREASING THE EFFICIENCY OF P FERTILIZER BY MIXING ORDINARY CALCIUM SUPER-PHOSPHATE WITH SEEDS OF FIELD BEAN (Vicia faba L.) |
|---|---|
| Authors | Abdel-Salam, A.A..; Roshdy, A.. and El-Shaikh, F.T..Z.. |
| year | 1988 |
| keywords | |
| journal | |
| volume | Not Available |
| issue | Not Available |
| pages | Not Available |
| publisher | Not Available |
| Local/International | Local |
| Paper Link | Not Available |
| Full paper | download |
| Supplementary materials | Not Available |
Abstract
In two seasons (1986/87 and 87/88), phosphorus ferti— lizer was applied as ordinary calcium superphosphate (OCSP) mixed with seeds of field beans (Vicia faba L. cv. Giza 2) at rates of 7.0, 10.5 and 14 kg P/fad. (16, 24 and 32 kg P205/fad.). It caused more growth and gave 57 and 14% mroe yield at the low and high rates than broadcast, and 37 and 19% more yield at the same respective rates than banding. Mixing OCSP with seeds has the same advantage as its banding in keeping the contact of fertilizer with soil to minimum P fixation. It also has the further advantage of securing sample P in the vicinity of seeds, and seedling roots at the earliest possible stage in crop life, both of which are crucial for growth and yield. Uptake of N, P and K as well as seed yield were all increased by this method. Under Egyptian conditions of (a)—soils being mostly clayey or calcareous or both and (b)-OCSP being powdered, appreciable fixation of P is invevitable; hence, this method is imperative especially if conditions dictate low rates.