Sachan, Sharad
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Comparative Effects of Soil and Foliar Iron Application on Nutrient Dynamics in Green Gram Pandey, Adarsh; Kumar, Karmnath; Pathak, Shakti Om; Das, Nilotpal; Kumar, Atin; Sachan, Sharad
Agro Bali : Agricultural Journal Vol 9, No 1 (2026)
Publisher : Universitas Panji Sakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37637/ab.v9i1.2573

Abstract

Iron deficiency is a common limitation in alkaline soils, restricting nutrient uptake and yield in pulse crops such as green gram (Vigna radiata L.). To compare various iron fertilization regimes and their effects on soil properties, nutrient dynamics, and nutrient uptake in green gram, a field experiment was conducted from March to July 2024 at SGT University, Gurugram, Haryana. The experimental design was a randomized block trial with three replicates because the experiment comprised seven treatments, including the recommended dose of fertilizers (RDF: 20:40:40 kg N: P₂O: K₂O ha-1) and soil and foliar applications of FeSO4. It was found that foliar application of FeSO4 significantly enhanced soil fertility and plant nutrient status compared to soil application. The highest soil organic carbon was recorded at 30 and 45 DAS with the RDF + foliar spray of 0.6% FeSO4 (0.41% and 0.40%, respectively), an increase of about 32-35% compared with the control (0.31-0.30%). Likewise, the available nitrogen content increased by 189.12 kg ha-1 to 225.08 kg ha-1 (about 19 percent improvement) under the same treatment. Nutrient levels in plant tissues also increased significantly, and nitrogen content in the straw and grain improved by 40-120 percent and 1.82-3.38 percent, respectively, compared to the control. The experiment shows that foliar iron application is more effective than soil-applied iron in improving nutrient status and plant uptake in alkaline soil. The originality of the study lies in its comparison of soil under staged foliar iron fertilization and its effects on the dynamics of soil nutrients, micronutrient availability, and nutrient use efficiency in the growth of green grass on alkaline soils.
Enhancing agronomic crop performance: a review of the role of Nano-Diammonium Phosphate (Nano-DAP) in improving soil nutrient status and crop productivity Karn, Nitish; Kumar, Atin; Ikram, Mohsin; Sachan, Sharad; Singh, Jitendra; Kumar, Sunil; Shubham, Shubham; AbdelRahman, Mohamed A. E.
SAINS TANAH - Journal of Soil Science and Agroclimatology Vol 22, No 2 (2025): December
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/stjssa.v22i2.103576

Abstract

Nano-diammonium phosphate (Nano-DAP) is a promising source of nitrogen (N) and phosphorus (P₂O₅) for crops and provides an effective remedy for nutrient deficiencies in standing plants. This review highlights the critical role of phosphorus in plant growth and examines the limitations of conventional fertilizers such as urea, DAP, and compost, which, although essential for crop production, often suffer from low nutrient use efficiency and contribute to environmental pollution. Drawing on a synthesis of published studies, this review demonstrates that Nano-DAP enhances phosphorus solubility and availability in soil–plant systems, thereby improving nutrient absorption, stimulating plant growth, and increasing crop yields compared to conventional fertilizers. The review also evaluates the impact of Nano-DAP on yield performance, nutrient uptake, and its application in major field crops. Furthermore, the advantages and potential limitations of Nano-DAP are discussed in the context of sustainable agriculture. Overall, the use of nano-fertilizers, particularly Nano-DAP, presents a promising strategy to improve agricultural productivity while reducing environmental risks.