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Prof. Mohammad Hamid Osmankhil

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Open access Jul 2026

Effect of Different Levels of Diammonium Phosphate (DAP) Fertilizer on Growth and Yield of Chickpea (Cicer arietinum L.) Variety Flip 94

Chickpea (Cicer arietinum L.) is an important pulse crop valued for its nutritional quality and role in sustainable agriculture. However, productivity is often constrained by low soil fertility and poor nutrient management, particularly phosphorus deficiency. A field experiment was conducted during the 2025 growing season at the Research Farm of the Faculty of Agriculture, Kabul University, Afghanistan, to evaluate the effect of different levels of diammonium phosphate (DAP) fertilizer on growth and yield of chickpea variety Flip 94. The experiment was arranged in a Randomized Complete Block Design (RCBD) with five DAP levels (0, 50, 100, 150, and 200 kg ha⁻¹) and three replications. Results showed that DAP application significantly influenced all growth and yield parameters, while replication effects were non-significant. Treatment 3 (100 kg ha⁻¹ DAP) consistently performed best, recording the highest plant height (34.23 cm), number of branches per plant (4.92), number of pods per plant (37.47), grains per pod (1.93), and grain yield (5.52 t ha⁻¹). In contrast, the control treatment recorded the lowest values for all studied traits. The improved performance under optimal DAP application is attributed to enhanced nutrient availability, better root development, increased nodulation, and improved photosynthetic efficiency, which collectively supported stronger vegetative growth and reproductive development. In conclusion, application of DAP fertilizer significantly improves chickpea growth and yield under Kabul agro-climatic conditions. Treatment 3 (100 kg ha⁻¹ DAP) was identified as the most effective dose for maximizing productivity of chickpea variety Flip 94.

Shokrullah Rahimi, Prof. Mohammad Hamid Osmankhil · 0 citations
Review Open access Jul 2026

Review of Organic and Inorganic Fertilizer Practices in Mung Bean (Vigna radiata L.) under Kabul Climatic Conditions

Mung bean (Vigna radiata L.) is a short-duration pulse crop of global importance, valued for its nutritional quality, nitrogen-fixing ability, and adaptability to semi-arid climates. In Afghanistan, particularly under Kabul agro-climatic conditions, productivity remains below global averages due to poor soil fertility, limited access to improved varieties, and inadequate nutrient management. This review synthesizes recent evidence (2022–2026) on organic and inorganic fertilizer practices in mung bean cultivation. Organic amendments such as poultry manure at higher application rates (8–10 t ha⁻¹) significantly enhance vegetative growth, pod formation, and grain yield [1,2,4]. Inorganic NPK fertilizers provide immediate nutrient availability but risk long-term soil degradation if applied alone [3,6]. Integrated nutrient management (INM), combining mineral fertilizers with organic inputs, improves soil fertility, microbial activity, and sustainability, offering superior productivity outcomes [7,11,12]. Improved varieties such as Enam demonstrate positive responses under INM strategies, underscoring the importance of genotype × environment × management interactions [2,5,9]. Recent studies highlight biofertilizers and micronutrient supplementation as promising approaches to further enhance nodulation, nitrogen fixation, and seed quality [3,8,10]. Key research gaps remain in varietal performance, soil fertility constraints, and region-specific INM practices. Adoption of integrated fertilizer management can substantially improve mung bean productivity and soil health in Kabul and similar semi-arid regions, contributing to food security and sustainable agriculture.

Shafiullah Mohmand, Prof. Mohammad Hamid Osmankhil · 0 citations