Nitrogen Dynamics in Grasslands

Ghosh, P. K.; Mahanta, S. K.; Ram, Shri

doi:10.1016/b978-0-12-811836-8.00013-6

Cited by 4 publications

(2 citation statements)

References 10 publications

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“…Nitrogen is a crucial nutrient for plants since it is one of the major nutrients required in high proportions for plant metabolism and development and is the most limiting factor for grassland productivity 63,64 . Atmospheric nitrogen is the principal source of nitrogen in the soil.…”

Section: Soil Nitrogenmentioning

confidence: 99%

Maximising ecological value and assessing land suitability for sustainable grassland management in Asia’s largest tropical grassland, Western India

Dey,

Sharma,

Thakkar

2024

Sci Rep

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Grasslands are crucial ecosystems that provide numerous ecological services and support biodiversity conservation. Grasslands undergo significant threats from both anthropogenic and natural sources, compromising their ability to maintain biodiversity, ecosystem services, and human well-being. However, grasslands are frequently ignored in sustainable development objectives. Adequate knowledge of how grassland degradation affects ecosystem services is essential for sustainable management and grassland ecological restoration. The Kachchh region in western India harbours a unique grassland ecosystem known as the Banni grassland, which once became the finest grassland in Asia. However, undesirable anthropogenic interventions have accelerated its degradation. This research paper aims to assess the suitability of different land areas in Banni for sustainable grassland restoration, considering ecological value as a primary criterion. In the present research, land suitability for grassland management was assessed using a geographical information system (GIS)-based multi criteria evolution (MCE) method with satellite data and the analytic hierarchy process (AHP). The ground truthing of the soil samples was carried out alongside. Slope, rainfall, infiltration rate, LULC, geomorphology, soil texture, soil organic carbon, water holding capacity, SAR, CEC, pH, EC, and soil nutrients were among the criteria used. The weights for each criterion were calculated using a pairwise comparison matrix, and the scores were allocated to sub criteria based on field work, expert opinions, and a literature review. The proposed method can be very useful for evaluating the state of the land and can help with the best possible planning for grassland development and conservation. Banni grassland has the potential to be developed into a critical zone observatory (CZO) in the future, and the present study, with further inputs, holds promise for furthering the cause of its sustainable management. Overall, this study underscores the importance of assessing land suitability for sustainable grassland management and highlights the potential for maximising the ecological value of grasslands in western India and beyond.

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Section: Soil Nitrogenmentioning

confidence: 99%

Maximising ecological value and assessing land suitability for sustainable grassland management in Asia’s largest tropical grassland, Western India

Dey,

Sharma,

Thakkar

2024

Sci Rep

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“…Lack of nutrients, inadequate management of pastures, and inappropriate cultural practices are responsible for pasture degradation. Applying fertilizers in large quantities increase the productivity of grasslands [4]. Low nitrogen availability has been identified as a major cause of degradation of tropical pastures [5] and the constant removal of forage without proper supply of nutrients extracted by plants emphasizes the problems of grazing land degradation [6].…”

Section: Introductionmentioning

confidence: 99%

Top Dressing of Fertilizers: A Way Forward for Boosting Productivity and Economic Viability of Grasslands

Atumo¹,

Heliso²,

Hibebo³

et al. 2022

Grasses and Grassland - New Perspectives

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Grasslands in the Ethiopian highlands have been degrading with grazing loads. Fertilizers like nitrogen, phosphorus and sulfur improves the soil fertility and species composition of the grazing lands. This study justifies, evaluation of top dressing nitrogen and phosphorus fertilizers on biomass yield of grass lands for market-oriented livestock production studied at Chosha kebele, Southern Ethiopia in 2017. Three fertilizer levels ((T1), 150 kg ha−1 urea (T2) and combination of 110 kg ha−1 urea and 100 kg ha−1 NPS (T3)) were laid out in randomized complete block design with 6 replications in summer and winter cropping seasons. Dry matter yield was significantly (P<0.001) different among treatments and higher results were obtained for combination of urea and NPS, followed by urea and the control one. Higher grasses species composition between application of combination of urea and NPS than urea alone. Net revenue is higher in nitrogen alone application than nitrogen and phosphorus. Therefore, better marginal rate of return (MRR=828%) recorded in Urea application for grazing land improvement in Gamo highland areas. It is recommendable to apply 150 kg/ha urea fertilizer to bring optimum yield of grazing land in Southern Ethiopian Highlands.

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Ecological impacts and limits of biomass use: a critical review

Arodudu

Holmatov²,

Voinov

2020

Clean Techn Environ Policy

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Conventional biomass sources have been widely exploited for several end uses (mostly food, feed, fuel and chemicals). More unconventional sources are continually being sought for meeting the growing planetary demands for biomass materials. Biofuels are already commercially produced in many countries and are becoming mainstream. The role of biorefineries for production of chemicals is also on the rise. Plant biomass is the primary source of food for all multicellular living organisms. Primary production remains a key link in the chain of life support on planet Earth. Is there enough for all? What new strategies (or technologies) are available or promising for providing plant biomass in a safe and sustainable way? What are the potential impacts (footprints and efficiencies) of such strategies? What can be the limiting factors-land, water, energy and nutrients? What might be the limits for specific regions (OECD vs. non-OECD, advanced vs. developing, dry and warm vs. wet and cool, etc.). In this paper, we provided answers to these questions by critically reviewing the pros and cons associated with current and future production and use pathways for biomass. We conclude that in many cases, the jury is still out, and we cannot come to a solid verdict about the future of biomass production and use.

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Nitrogen Dynamics in Grasslands

Cited by 4 publications

References 10 publications

Maximising ecological value and assessing land suitability for sustainable grassland management in Asia’s largest tropical grassland, Western India

Maximising ecological value and assessing land suitability for sustainable grassland management in Asia’s largest tropical grassland, Western India

Top Dressing of Fertilizers: A Way Forward for Boosting Productivity and Economic Viability of Grasslands

Ecological impacts and limits of biomass use: a critical review

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