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Abstract : |
Two field experiments were conducted during 1999/2000 and 2000/2001 seasons at the Agricultural Research Station of National Research Center (NRC), Shalkan, Qalubia Governorate to study the possibility of reducing the amount of soil potassium fertilizers applied to feed faba bean through potassium foliar feeding. Five potassium treatments per feddan including negative (0.0 kg K2O) and positive control (48 kg K2O) in addition to three treatments (36, 24 and 12 kg K2O) supplemented with potassium foliar feeding were applied. No significant differences on plant height and branch number was found. Applying 36 kg K2O supplemented with foliar potassium feeding gave the highest marked increase in 100 seed weight, number of pods and seed yield. Applying the recommended soil potassium fertilizer (48 kg K2O) gave the highest increase in straw yield. Applying 36 kg K2O supplemented with foliar potassium feeding showed the highest leaf N, K and Fe, while 24 kg K2O supplemented with foliar potassium feeding showed the highest marked increase in leaf P concentration. No significant effect on leaf Mg, Mn and Zn due to potassium treatments were recorded, Two field experiments were conducted during 1999/2000 and 2000/2001 seasons at the Agricultural Research Station of National Research Center (NRC), Shalkan, Qalubia Governorate to study the possibility of reducing the amount of soil potassium fertilizers applied to feed faba bean through potassium foliar feeding. Five potassium treatments per feddan including negative (0.0 kg K2O) and positive control (48 kg K2O) in addition to three treatments (36, 24 and 12 kg K2O) supplemented with potassium foliar feeding were applied. No significant differences on plant height and branch number was found. Applying 36 kg K2O supplemented with foliar potassium feeding gave the highest marked increase in 100 seed weight, number of pods and seed yield. Applying the recommended soil potassium fertilizer (48 kg K2O) gave the highest increase in straw yield. Applying 36 kg K2O supplemented with foliar potassium feeding showed the highest leaf N, K and Fe, while 24 kg K2O supplemented with foliar potassium feeding showed the highest marked increase in leaf P concentration. No significant effect on leaf Mg, Mn and Zn due to potassium treatments were recorded, |
