Effects of Nitrogen Application on Growth and Yield of Groundnut (Arachis hypogaea L.) in Northeast Agro-Ecology of Afghanistan

Abstract

A field experiment Conducted at the farm of Kunduz University during cropping season of 2023 to evaluate Effects of Nitrogen Application on Growth and Yield of Groundnut (Arachis hypogaea L.) in northeast of Afghanistan. The field experiment laid out in Randomized Complete Block Design with three replications, the treatments were Nitrogen fertilizer levels viz. Control, 15 kg N/ha, 30 kg N/ha and 45 kg N/ha respectively, result of the study revealed the highest Plant Height (32.61cm), Branches/plant (10.05), Leave area index (5.20), Kernel/pod (2.23), Pod weight (24.46), Pods/plant (32.30), 100- seed weight (76.38gr), Pod yield (2.89t/ha), haulm yield (5.53t/ha) and Biological yield (8.42t/ha) were in treatment with application 45 kg N/ha, the minimum growth and yield parameters were in Control plots, it can be concluded nitrogen fertilizer at the rate of 45 kg N/ha is optimum level for enhancing groundnut productivity and profitability in northeast of Afghanistan.

Optimization of Crop Establishment Methods and Phosphorus Fertilizer Levels on Growth and Economic Efficiency of Groundnut under Semi-Arid Region of Afghanistan

“…Groundnut is cultivating in tropical, sub-tropical and warm temperature regions between 40⁰ N and 40⁰ S latitude. The global area under groundnut cultivation is 31.57 million hectare with total produce 53.64 million tones, the average production is 1.691 ton/ha (Dass et al, 2014;Farkhari et al, 2023;Khaleeq et al, 2024c;Khaleeq et al, 2024g) However, groundnut efficiency is low because of flatbed crop growing which hampers sufficient pod expansion. Also, flat bed resulted in higher dehydration resulting in drought stress in groundnut.…”