ABOUEL-DEFAN, T., EL-KHOLI, H., RIFAAT, M., ABD-ALLAH, A. (1999). 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, 77(2), 513-522. doi: 10.21608/ejar.1999.331371
TAREK A. ABOUEL-DEFAN; HOSAM M. A. EL-KHOLI; MOHAMED G. M. RIFAAT; ALI E. ABD-ALLAH. "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, 77, 2, 1999, 513-522. doi: 10.21608/ejar.1999.331371
ABOUEL-DEFAN, T., EL-KHOLI, H., RIFAAT, M., ABD-ALLAH, A. (1999). '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, 77(2), pp. 513-522. doi: 10.21608/ejar.1999.331371
ABOUEL-DEFAN, T., EL-KHOLI, H., RIFAAT, M., ABD-ALLAH, A. 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, 1999; 77(2): 513-522. doi: 10.21608/ejar.1999.331371
EFFECT OF SOIL AND FOLIAR APPLICATION OF POTASSIUM ON YIELD AND MINERAL CONTENT OF WHEAT GRAINS GROWN IN SANDY SOILS
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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