Growth and Yield of Groundnut (Arachis Hypogaea L) Genotypes as Affected by Nitrogen Fertilizer under Northeast Climate of Afghanistan

Abstract

A field experiment was conducted at the agronomic research farm of Kunduz University during summer season of 2023 to evaluate Growth and yield of groundnut (Arachis hypogaea L) genotypes as affected by Nitrogen Fertilizer in northeast climate of Afghanistan, the experiment laid out in randomized complete block design with split arrangement each replicated thrice, both groundnut genotypes and nitrogen fertilizer were significantly affected on growth, yield component and yield of groundnut, between groundnut genotypes spreading genotype was best on growth and yield of groundnut, the maximum plant height (31.15cm), branches/plant (9.39), Leave Area Index (4.75), dry matter (5,170.04 kg/ha), pod weight (21.98gr/plant), 100 kernel weight (71.53gr), Pod yield (2,504.64kg/ha) and Biological Yield (7,674.69 kg/ha) were in spreading genotype compared to bunch genotype, ,  Nitrogen fertilizer also affected on growth and yield of groundnut, the maximum plant height (32.61cm), branches/plant (10.05), Leave Area Index (5.20) and dry matter (5,533.55kg/ha), Pods/plant (32.30), Kernel/pod (2.23), pod weight (24.46gr/plant), 100 kernel weight (76.38gr), Pod yield (2,890.00kg/ha) and Biological Yield (8,423.55kg/ha) were in spreading genotype compared to bunch genotype. the Spreading genotype was more adaptable in Kunduz climate over bunch genotype, Therefore application of 45 kg N/ha along with groundnut spreading genotype is the best combination for groundnut productivity in northeast of Afghanistan.