This study evaluated the effects of different rates of diammonium phosphate fertilizer on the growth, yield, and yield components of common bean under field conditions at the Faculty of Agriculture Research Farm, Kabul University, during the 2025 growing season. The experiment was conducted using a randomized complete block design with three replications and four fertilizer treatments: 0 (control), 30, 60, and 90 kg ha⁻¹ of diammonium phosphate. Data were collected on vegetative growth traits, including plant height, number of branches, and number of leaves, as well as reproductive traits such as number of pods per plant, grains per pod, pod length, pod width, 100-seed weight, and grain yield. The data were analyzed using analysis of variance, and treatment means were separated using the least significant difference test at the 5% significance level. Fertilizer application significantly affected most growth and yield parameters. The application of 60 kg ha⁻¹ produced the greatest vegetative growth, recording the highest plant height (33.8 cm) and number of branches (4.47), while the unfertilized control produced the highest number of leaves (36.4). The application of 90 kg ha⁻¹ resulted in the highest reproductive performance, including number of pods per plant (12.33), grains per pod (4.00), pod size, 100-seed weight (66 g), and grain yield (1090 kg ha⁻¹). The findings indicate that moderate fertilizer application promotes vegetative growth, whereas a higher application rate maximizes reproductive development and grain yield. Therefore, applying 90 kg ha⁻¹ of diammonium phosphate is recommended to improve common bean productivity under agroecological conditions similar to those of the study area.
Aqa Jan Noori, Mohammad Khalid Rashidi, Amira Saidi· International Journal of Cur...· 0 citations
Soybean (Glycine max L.) is a globally important crop valued for its high protein and oil content, yet its productivity in Afghanistan remains constrained by poor soil fertility and reliance on chemical fertilizers. This review article synthesizes experimental evidence on the comparative effects of organic inputs (night soil, farm manure) and inorganic fertilizers (diammonium phosphate, urea) on soybean growth and yield under Kabul’s semi‑arid conditions. The purpose of this study is to evaluate sustainable nutrient management strategies that enhance crop productivity while maintaining soil health.
Field trials conducted at Kabul University employed a randomized complete block design with five treatments: control, night soil, farm manure, DAP, and urea. Growth parameters such as plant height, branches per plant, leaf number, and pods per plant were measured alongside yield attributes including 100‑seed weight and grain yield. Results demonstrated that organic amendments significantly improved soybean performance compared to chemical fertilizers. Farm manure produced the tallest plants, highest branching, and maximum pods per plant, with grain yield reaching 1725 kg/ha. Night soil accelerated flowering and pod formation while also improving yield (1616 kg/ha). In contrast, urea resulted in the lowest yield (1262 kg/ha), highlighting the limitations of sole reliance on chemical inputs.
The findings confirm that organic fertilizers enhance soil structure, microbial activity, and long‑term fertility, making them vital for sustainable soybean production in semi‑arid Kabul. Integrating organic inputs into nutrient management strategies can reduce dependence on chemical fertilizers, improve food security, and support climate‑resilient agriculture in Afghanistan.
Ezatullah Aryubi, A. G. Ayubi, Amira Saidi· International Journal of Cur...· 0 citations
Phosphorus deficiency is one of the main factors restricting mung bean (Vigna radiata L.) production in many parts of the world, including Afghanistan. Therefore, a field experiment was carried out in the 2025 growing season at the Research Farm of the Faculty of Agriculture, Kabul University, to determine the influence of different diammonium phosphate (DAP) fertilizer levels on mung bean growth and yield. The experiment was arranged in a randomized complete block design (RCBD) with three replications, consisting of four DAP rates: 0, 30, 60, and 90 kg ha⁻¹. The collected growth and yield data were analyzed using analysis of variance (ANOVA), and mean comparisons were performed using the Least Significant Difference (LSD) test at a 5% probability level. The application of DAP fertilizer significantly improved plant height, shoot dry matter, number of branches, pods per plant, pod length, seeds per pod, and 100-seed weight. However, leaf number, grain weight per square meter, seed yield, and harvest index did not show significant differences among fertilizer treatments, although higher values were generally observed compared with the control treatment. The maximum seed yield (870.83 kg ha⁻¹) was obtained from the application of 60 kg DAP ha⁻¹, while the highest performance for most growth and yield-related traits was recorded under 90 kg DAP ha⁻¹. The findings suggest that DAP fertilizer application enhances mung bean growth and yield performance under the environmental conditions of Kabul. Among the tested fertilizer levels, 60 kg DAP ha⁻¹ was found to be the most effective rate for achieving higher grain yield.
Mohammad Akbar Moqbil, Mohammad Khalid Rashidi, Amira Saidi· International Journal of Cur...· 0 citations
Winter wheat (Triticum aestivum L.) is a staple cereal crops that provides income and support the livelihoods of local farmers of Afghanistan, while also playing a vital role in food security. It is a major source of carbohydrates and proteins for human consumption, while its straw is commonly used as livestock feed in Afghanistan. yet productivity remains below potential due to limited availability of locally adapted improved varieties. This study evaluated the agronomic performance, yield, and yield-related traits of four winter wheat varieties (Sohla 02, Sohla 018, Chont, and local variety Riza Gul) under irrigated conditions in Char Asiab District, Kabul, during the 2024–2025 growing season. Using a Randomized Complete Block Design with three replications, the data was analyzed with Statistical Tools for Agricultural Research (STAR 2.0.1) software. significant varietal differences were observed for most traits. Result showed that Sohla 018 produced the highest grain yield (4,866.67 kg ha⁻¹), 1000-grain weight (44.36 g), and grains per spike (51.11). While Sohla 02 showed superior vegetative growth, this did not translate to higher yield. The findings identify Sohla 018 as the most suitable variety for cultivation in Char Asiab District, with potential to improve wheat productivity and contribute to food security in Afghanistan.
Mohammad Zekrullah Matin, A. Afghani, Amira Saidi· International Journal of Cur...· 0 citations
