Browsing by Author "Vivek kumar"

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How the soil nitrogen nutrient promotes plant growth—a critical assessment
(Elsevier, 2022) Ankita Singh; Akash Hidangmayum; Pushpendra Tiwari; Vivek kumar; Bansh Narayan Singh; Padmanabh Dwivedi
Nitrogen is a principal constituent of proteins, amino acids, and nucleotides involved in several physiological responses like seed germination, root growth, flowering, and crop production. The plant required N in the form of NO3− or/and NH4+ for high-yield crop production. The mechanism of root adaptation is varied in the supply of N forms, and concentration has been well characterized and demonstrated. However, the effects of soil N concentration on plant development and yield production are limited and widely diverse in the literature. In this review, we summarize the role of forms of nitrogen and plant growth-promoting microbes as a biofertilizer whose implementation in fields shapes plant development and crop production. The presence of external NO3− induces a family of nitrate and ammonium transporters genes and provokes lateral root differentiation. But contrast, excess N supply could suppress the root differentiation and expression of nitrate transporters. The effects of biofertilizer in the presence of nitrate supply showed a similar response as demand for low N supply. Therefore, optimum management of N is needed to minimize N losses in soil and gain maximum crop outcome. There are several approaches, such as soil monitoring, tissue N analysis, and crop-based methods can contribute to balancing N in the soil-crop-atmosphere. The implementation of such packages, when combined with biofertilizer, irrigation requirements, and soil N monitoring methods, is vital for well-organized N management with minimizing N loss to the environment. © 2022 Elsevier Inc. All rights reserved.