تاثير التغذية البوتاسية و موعد التطويش في نمو و انتاج الفول البلدي

This research was carried out during 2005 – 2006 in the Syrian coastal area to study the effect of four rates from potassium fertilizer 0,20,40,60 Kg/ha-1 and two times of topping: the beginning of flowers and formation pods stages and interaction between them. The study showed the following results: 1. Increased potassium nutrition to 20,40, and 60 Kg K2O / ha-1 caused a significant increase in the number of branches, flowers, leaves, pods, leaf area cm2 / plant, and number of seed, and weight seeds / pods compared with the control time. 2. The two rates of topping significantly increased all characteristics mentioned above compared with the control, except the number of seeds / pod. 3. The interaction between potassium nutrition and times of topping had a significant effect on all characteristics mentioned above.