Effect of Sowing Dates and Potassium Fertilizer Rates on Seed Yield of Lima Bean CV. (Phaseolus vulgaris L.)

Abstract

To investigate the effect of sowing dates and potassium fertilizer rates on seeds yield and yield component of lima bean. Two field experiments were conducted at Sakha Agricultural Research Station during 2015 and 2016 summer seasons. Four sowing dates (1 st May, 15 th May, 30 th May and 15 th June) and potassium fertilizer rates (0, 50, 75, and 100 kg/fed) were used as treatments. The main findings could be summarized as follows:Sowing dates significantly affected seed yield (t/fed), No. of seeds/pod, pod length (cm), No. of pods/plant, pods weight/plant, plant height (cm), stem diameter (cm), No. of branches/plant. Sowing on 1 st May significantly exceeded all studied traits compared with other sowing dates and produced the highest yield (2.477 t/fed), while the lowest sowing date on 15 th June. The stem diameter increased with sowing late (1.810 t/fed.).Potassium fertilizer rates significantly affected on seed yield (t/fed), No. of seeds/pod, pod length (cm) , No. of pods/plant, pods weight (t/ fed), plant height (cm), stem diameter (cm), No. of branches/ plant. The results indicated that the highest lima bean seed yield was 2.375 (t/fed) when fertilized with100kg k 2 o/fed and the lowest at control zero fertilizer 1.990 (t/fed).It could be concluded that early sowing on 1 st May with addition potassium fertilizer rate at 100 kg k 2 o/fed were the recommended treatment to produce the highest seed yield production of lima bean at North Delta under the environmental condition of Kafr EL-Sheikh Governorate.

Effect of Different Treatments on Nutritional Value of Lima Bean (<i>Phaseolus lunatus</i>) and Its Utilization in Biscuit Manufacture

“…In Egypt lima bean was cultivated at North Delta under the environmental condition of Kafr El-Sheikh Governorate Produced high seed yield 2.5 ton/fed. with about 24% protein [4].…”

The Effects of Different Fertilizer Applications on Some Morphological Traits in Fresh Bean

“…Çiftçi and Şehrali (1984) reported that plant height in bean varies between 17.0-164.0 depending on the variety and environmental conditions. In a study investigating the effects of sowing dates and potassium fertilizer rates on bean yield, it was reported that plant height, stem diameter, and potassium content increased with potassium application (Badawy et al, 2019). In a study conducted for the performance evaluation of fresh bean genotypes for yield and related traits, it was reported that stem diameter values ranged between 3.00-5.70 cm (Yohannes et al, 2020).…”

Crescimento, severidade de oídio e produtividade do feijão-vagem em resposta a diferentes fontes de potássio

“…Especificamente para o feijoeiro, este nutriente é responsável pelo crescimento, enchimento das vagens, além de auxiliar na resistência a doenças fúngicas, como o oídio (Erysiphe polygone), que pode tomar toda a superfície foliar e prejudicar a fotossíntese e, consequentemente, a produtividade da cultura (BADAWY et al 2019, AHAMMED & YANG 2021.…”