Nitrogen Management Paradigm in Horticulture Systems in India

Ganeshamurthy, A. N.; Rupa, T. R.; Kalaivanan, D.; Radha, T.

doi:10.1016/b978-0-12-811836-8.00009-4

Cited by 13 publications

(15 citation statements)

References 27 publications

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“…Despite the high cost of nitrate and the potentially adverse environmental and health effects of nitrate leached into groundwater, it is still the most used mineral nutrient in horticulture industry [6]. To properly meet food demands and simultaneously enhance greenhouse systems' sustainability, it is necessary to reduce the excessive inputs of nitrate fertilizers and improve nitrogen use efficiency while maintaining reasonable yield [7].…”

Section: Discussionmentioning

confidence: 99%

“…In the meat industry, nitrite is used as a curing agent to improve the flavor, taste, and aroma, preserve the meat's red-pink color, and prevent the risk of bacterial contamination of cured meat, mainly from Clostridium botulinum [6]. Thus, most of the relevant publications illustrated the impact of nitrite on processed meat quality and the associated human health reflections.…”

Section: Introductionmentioning

confidence: 99%

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Health Aspects, Growth Performance, and Meat Quality of Rabbits Receiving Diets Supplemented with Lettuce Fertilized with Whey Protein Hydrolysate Substituting Nitrate

et al. 2021

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Lettuce (Lactuca sativa) was grown using a foliar spray with whey protein hydrolysate (WPH) as opposed to normal nitrate fertilization. Lettuce juice was prepared from lettuce cultivated without any fertilization, nitrate fertilization, or WPH. Sixty weaned, 4-week-old male V-line rabbits with an average 455 ± 6 g body weight were randomly divided into 4 groups (n = 15) and administered different lettuce juices. Rabbits administered WPH-fertilized lettuce showed significantly higher (n = 5, p < 0.05) body weight and carcass weight than those receiving nitrate-fertilized lettuce. Rabbits administered nitrate-fertilized lettuce were associated with significantly (p < 0.05) higher levels of liver enzyme activities (AST, ALT, and ALP), bilirubin (total, direct, and indirect), and kidney biomarkers (creatinine, urea, and uric acid). Rabbits administered WPH-fertilized lettuce avoided such increases and exhibited normal levels of serum proteins. Rabbits administered nitrate-fertilized lettuce manifested significantly (p < 0.05) lower RBCs and Hb levels than that of the other groups, while those receiving WPH-fertilized lettuce showed the highest levels. Liver and kidney sections of rabbits receiving WPH-fertilized lettuce witnessed the absence of the histopathological changes induced by feeding on nitrate-fertilized lettuce and produced higher quality meat. WPH-lettuce can substitute nitrate-fertilized lettuce in feeding rabbits for better performance and health aspects.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Health Aspects, Growth Performance, and Meat Quality of Rabbits Receiving Diets Supplemented with Lettuce Fertilized with Whey Protein Hydrolysate Substituting Nitrate

et al. 2021

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“…Notwithstanding the high cost of nitrate and the well-known adverse environmental and health effects caused by its leaching into groundwater, it is the mineral nutrient that horticulture industry uses in the highest amount [58]. However, to meet food demands and, at the same time, enhance the sustainability of greenhouse systems, it is necessary to reduce the excessive inputs of N fertilizers, improving NUE and consequently maintaining reasonable yield and profit margin for the farmers [59].…”

Section: Discussionmentioning

confidence: 99%

Morphological and Physiological Responses Induced by Protein Hydrolysate-Based Biostimulant and Nitrogen Rates in Greenhouse Spinach

et al. 2019

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Plant-derived protein hydrolysates (PHs) are gaining prominence as biostimulants due to their potential to improve yield and nutritional quality even under suboptimal nutrient regimens. In this study, we investigated the effects of foliar application of a legume-derived PH (0 or 4 mL L−1) on greenhouse baby spinach (Spinacia oleracea L.) under four nitrogen (N) fertilization levels (0, 15, 30, or 45 kg ha−1) by evaluating morphological and colorimetric parameters, mineral composition, carbohydrates, proteins, and amino acids. The fresh yield in untreated and biostimulant-treated spinach plants increased in response to an increase in N fertilization from 1 up to 30 kg ha−1, reaching a plateau thereafter indicating the luxury consumption of N at 45 kg ha−1. Increasing N fertilization rate, independently of PH, lead to a significant increase of all amino acids with the exception of alanine, GABA, leucine, lysine, methionine, and ornithine but decreased the polyphenols content. Interestingly, the fresh yield at 0 and 15 kg ha−1 was clearly greater in PH-treated plants compared to untreated plants by 33.3% and 24.9%, respectively. This was associated with the presence in of amino acids and small peptides PH ‘Trainer®’, which act as signaling molecules eliciting auxin- and/or gibberellin-like activities on both leaves and roots and thus inducing a “nutrient acquisition response” that enhances nutrients acquisition and assimilation (high P, Ca, and Mg accumulation) as well as an increase in the photochemical efficiency and activity of photosystem II (higher SPAD index). Foliar applications of the commercial PH decreased the polyphenols content, but on the other hand strongly increased total amino acid content (+45%, +82%, and +59% at 0, 15, and 30 kg ha−1, respectively) but not at a 45-kg ha−1-rate. Overall, the use of PH could represent a sustainable tool for boosting yield and nitrogen use efficiency and coping with soil fertility problems under low input regimens.

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“…Blanket application of the fertilizer result in the over fertilize in some areas and under fertilize in others, or apply an improper balance of nutrient for their soil and also undesirable environmental effects such as nutrient mining or pollution of surface and ground water due to the variable indigenous nutrient supply NPK in different areas [6]. Further, the fertilizer use efficiency is also lower which ultimately reduces the production [7]. The fertilizer use efficiency of nitrogen is only 20-30% in Asia; similarly potassium and phosphorous use efficiency are only 45% and 20-30% in world respectively.…”

Section: Introductionmentioning

confidence: 99%

Effect of Site Specific Nutrient Management Approach In Productivity Of Spring Rice In Kanchanpur, Nepal

Pant

Joshi

Gaire

et al. 2020

Malaysian Journal of Halal Research

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AbstractA field experiment was carried out in sub-tropical climate of Bhimdattanagar, Kanchanpur to assess the effect of site specific nutrient management approach in productivity of spring rice. The experiment was carried in single factor randomized completely block design with four replication, in four different farmer’s field, each farmers’ field as single replication. The seedlings were grown in the mat nursery bed and transplanted in the experimental plots with different nutrient management practices. Nutrient management practices were Site Specific Nutrient Management with Nutrient Expert dose (SSNMNE)(109:28:38 kg NPK/ha), Government recommendation dose (100:30:30kg NPK/ha +6 ton FYM), Farmer’s field practice (FFP)(different among farmers) with three omission plots viz. omission of Nitrogen (0:28:38 kg NPK/ha), Omission of Phosphorus (109:0:38 kg NPK/ha) and Omission of Potassium (109:28:0 kg NPK/ha). SSNM-NE dose was obtained by household survey in the respective area and using nutrient expert model. The growth parameters, yield, yield attributing traits and total cost of production were recorded. Data were analyzed using Duncan’s Multiple Range Test (DMRT) in Genstat. Result indicates that the highest grain yield (5.81 t/ha) was obtained from SSNM-NE which was statistically at par with government recommendation (5.54 t/ha). Similarly, thousand grains weight, straw yield in the experiment 23.20g, 6.90t/ha were significantly higher in SSNM-NE respectively. Straw yield, grain yield and thousand grain weight of SSNM-NE were found to be statistically at par with government recommendation. The economic analysis revealed that higher B: C ratio (1.91), net return and gross return were higher in SSNM-NE.

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Nitrogen Management Paradigm in Horticulture Systems in India

Cited by 13 publications

References 27 publications

Health Aspects, Growth Performance, and Meat Quality of Rabbits Receiving Diets Supplemented with Lettuce Fertilized with Whey Protein Hydrolysate Substituting Nitrate

Health Aspects, Growth Performance, and Meat Quality of Rabbits Receiving Diets Supplemented with Lettuce Fertilized with Whey Protein Hydrolysate Substituting Nitrate

Morphological and Physiological Responses Induced by Protein Hydrolysate-Based Biostimulant and Nitrogen Rates in Greenhouse Spinach

Effect of Site Specific Nutrient Management Approach In Productivity Of Spring Rice In Kanchanpur, Nepal

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