EFFECT OF SOIL AND FOLIAR APPLICATION OF POTASSIUM ON YIELD AND MINERAL CONTENT OF WHEAT GRAINS GROWN IN SANDY SOILS | ||||
| Egyptian Journal of Agricultural Research | ||||
| Article 2, Volume 77, Issue 2, March 1999, Page 513-522 PDF (2.04 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejar.1999.331371 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| TAREK A. ABOUEL-DEFAN; HOSAM M. A. EL-KHOLI; MOHAMED G. M. RIFAAT; ALI E. ABD-ALLAH | ||||
| Soil, Water and Environment Research Institute, Agricultural Research Center, Giza, Egypt | ||||
| Abstract | ||||
| Wheat plants were cultivated in Ismailia agriculturaal research station farm and fertilzed with potassium, as K2SO4 (48% K20), in a foliar spray and/or soil application. The treatments were control (without K-application), soil application with 24 kg K20/fed., foliar application of K: foliar-1 (1.0% K20) at the rate of 16 kg K20/fed., and foliar-2 (1.5% K20) at the rate of 24 kg K20/fed., Soil+foliar-1 and soil+foliar-2 applications. The plants were sprayed with 400 liter .solution per feddan four times. The obtained results showed that soil + foliar treatments were superior for increasing wheat grain yield, straw yield and weight of 100 grain followed by foliar-K treatments. In general, increasing the potassium dose, decreased the percent of N, P, Na, Ca, Mg, Zn, Mn and Fe, while slightly increased K % in wheat grains comparing with the control (no potassium application) treatment. Increasing foliar-K rate did not improve nutrients content of grains. | ||||
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