Removing Bottlenecks in Fertilizing Salt-Affected Soils for Agricultural Production

Bhardwaj, Ajay Kumar; Srivastava, Shivangi; Dagar, J. C.; Yadav, Rajender Kumar; Sharma, Dinesh Kumar

doi:10.1007/978-81-322-2770-0_7

Cited by 5 publications

(4 citation statements)

References 51 publications

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“…These stresses represent the vital pressure or main problem in deterioration of the agricultural production. There are many case studies regarding these stresses such as saltaffected soils, polluted soils and water, global climate changes, marginal lands, wetlands, bushfires and agroforests, etc (Abhilash et al 2016;Amini et al 2016;Bhardwaj et al 2016). It is well known that, a great threat to land productivity can be posed due to the presence of soluble salts in the waters and soils including surface water and groundwater.…”

Section: Nanomaterials and Agroecosystemsmentioning

confidence: 99%

Nanomaterials and plant abiotic stress in agroecosystems

Elsakhawy

Omara

Alshaal

et al. 2018

EBSS

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Section: Nanomaterials and Agroecosystemsmentioning

confidence: 99%

Nanomaterials and plant abiotic stress in agroecosystems

Elsakhawy

Omara

Alshaal

et al. 2018

EBSS

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“…7 Soil ecosystem provides a range of services to human beings, but over-exploitation of soil can be controlled by adopting evaluated fertilizer and pesticide usage; practicing advanced soil management would help protect the soil from pollution and quality deterioration. 8 Soil fitness is soil's capacity to function as a dynamic living system within the ecosystem and land-use boundaries to sustain plant and animal productivity, maintain or improve water and air quality, and uphold plant and animal health. To maintain the soil's quality by agricultural activities are present days of utmost significant concern of humankind.…”

Section: Introductionmentioning

confidence: 99%

Water and Soil Quality of Coffee Plantations in the Western Ghats Region, Chikkamagaluru District, Karnataka, India

Raghavendra

Venkatesha

2020

Curr. World Environ

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To assess water and soil quality in the Western Ghats' coffee plantations, 66 water and 224 soil samples were collected at four locations for estimation 20 parameters in water and 16 parameters in soil samples. Principal component analysis as applied to a set of chemical data obtained by the laboratory analysis of water and soil. Study locations represented arabica coffee (Coffea arabica) plantations around 50 km2 from Chikkamagaluru town. PCA showed the interrelationship of water and soil parameters for four sampling locations. The clustering of sampling location results was due to the consequence and concentration of water and soil variables. The principal component bi-plot of phosphorous, conductivity, hardness, total dissolved solids, sulphate, magnesium, and alkalinity determined water quality factors. Heavy metals, nitrogen, and total phosphorous greatly influenced the quality of soil samples at different locations.

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“…Rice straw compost (RSC) and FYM had N concentrations of 0.81 and 0.56% (dry weight basis), respectively, and therefore these may also be not able to cross the critical limits when used alone in the quantities tested (5 t ha −1 ). Green manure crop (Sesbania aculeata) has a high concentration of 2.5% N and has been noticed to provide a good option for utilizing a fallow 45 days period after wheat season and incorporation of its green matter at the time of rice transplanting (Bhardwaj et al 2020(Bhardwaj et al , 2021a. A combination of these options can provide enough N to meet the needs of crops for high N at critical stages, even with reduced rates of fertilizers.…”

Section: Discussionmentioning

confidence: 99%

“…The integration of inorganic and organic sources of nutrients has been noted to improve soil fertility (Gogoi et al 2021). The common organic sources include farmyard manure, residue compost, crop residues, and cover crops (Sharma et al 2019;Bhardwaj et al 2021a). Integrated nutrient management (INM) is the best alternative for enhancing soil health and sustaining the rice-wheat system productivity (Bhardwaj et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Residue recycling options and their implications for sustainable nitrogen management in rice–wheat agroecosystems

Bhardwaj,

Malik,

Rani

et al. 2023

Ecol Process

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Background In the Indo-Gangetic Plain, rice–wheat is the most extensively practiced crop rotation. The escalating issue of crop residue burning, particularly rice straw, and the necessity to lower the exorbitant expenses associated with fertilizer inputs stand out as significant challenges for farmers in the region. A well-suited integrated nutrient management (INM) strategy that focuses on recycling crop residues can serve as a solution to address these issues. Such a strategy not only mitigates air pollution resulting from residue burning but also helps combat water pollution due to nitrate losses from agroecosystems. Field experiments were used to evaluate the suitability of eight INM-modules that included various combinations of inorganic fertilizer rates (50%, 100%, 150% of recommended dose), crop residues (wheat and rice stubble retention at 30 cm standing stubble equivalent to 1/3 the straw yield), rice straw compost (RSC), farmyard manure (FYM), and green manuring (GM), compared to 100% recommended dose of fertilizers (F) and no fertilizer application. Results There was a considerable improvement in nitrogen mineralization, grain yields, and nitrogen use efficiency under GM + RSC-F50 and GM + FYM-F50. These INM modules would permit a 50% reduction in the use of chemical fertilizers. There was a little yield penalty with in situ rice residue incorporation at 100% F; however, this could be overcome with 150% F fertilizer application. In situ retention of wheat straw with a full application of fertilizer resulted in steadily rising crop yields over time. Changes in the redox potential, soil pH, and soil organic carbon best accounted for the observed trajectories in nitrogen use efficiency. Conclusion The most promising INM modules for adoption by farmers in the Indo-Gangetic Plain to judiciously use crop residues and curtail chemical fertilizer inputs are green manuring with Sesbania aculeata + rice straw compost at 5 t ha−1 + only 50% of recommended dose of fertilizers (GM + RSC-F50), and green manuring with Sesbania aculeata + farmyard manure at 5 t ha−1 + only 50% of recommended dose of fertilizers (GM + FYM-F50). Sole incorporation of crop residues without nitrogen augmentation from other sources might not help curtail chemical fertilizer use. Composting rice straw, which otherwise is widely burnt, proved a useful nitrogen source and a vital component of INM. Waste rice straw composting at the community scale and its application as a nutrient source can help achieve sustainable nitrogen management in the agroecosystems of Indo-Gangetic Plain.

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Removing Bottlenecks in Fertilizing Salt-Affected Soils for Agricultural Production

Cited by 5 publications

References 51 publications

Nanomaterials and plant abiotic stress in agroecosystems

Nanomaterials and plant abiotic stress in agroecosystems

Water and Soil Quality of Coffee Plantations in the Western Ghats Region, Chikkamagaluru District, Karnataka, India

Residue recycling options and their implications for sustainable nitrogen management in rice–wheat agroecosystems

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