Effect of N Management on Root Yield and N Uptake of Radishes in Southern China

Weiling, Yuan; Yuan, Shu; Deng, Xiaohui; Gan, Caixia; Cui, Lei

doi:10.21273/hortsci.50.5.750

Cited by 4 publications

(3 citation statements)

References 14 publications

(18 reference statements)

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“…In all the three soils, plant total N uptake was significantly increased by N application compared with the CK (Figure 4). Such result has been widely reported [61,62]. However, the effect may vary among different fertilizer treatments.…”

Section: N Uptake Residue and Lossessupporting

confidence: 65%

Fertilization Practices: Optimization in Greenhouse Vegetable Cultivation with Different Planting Years

Pan

Pan²,

Jiao

et al. 2022

Sustainability

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Cucumber plant growth and the fate of N in the plant-soil system are influenced by fertilization practices, the strengths of which may vary among soils. Three soils with different years of greenhouse vegetable cultivation (0, 2, and 18 years) were fertilized differently (CK, no N fertilizer applied; CF, chemical NPK fertilizers applied; RCF, reduced chemical NPK fertilizers applied, with N, P, and K reduced by 46.5%, 68.6%, and 54.7%; RCF+CM, 75% of the total N derived from chemical fertilizer and the rest from chicken manure in the case of reduced fertilization) in a pot experiment to study the changes in cucumber (Cucumis sativus L.) growth, N uptake, residue, and losses. The original N in soil was insufficient to maintain leaf growth and chlorophyll synthesis at later growth stages, even in soil with 18 years of greenhouse vegetable cultivation, where the original N content was the highest (total N 1.73 g kg−1). However, the CF treatment with excessive N fertilization inhibited leaf growth at the early growing stage and accelerated leaf senescence later, especially in soil with longer years of greenhouse vegetable cultivation. Therefore, reduced fertilizer application (RCF and RCF+CM) is appropriate to improve cucumber growth and productivity in greenhouse cultivation with different planting years. Although the same amount of N was applied, the RCF+CM treatment performed better than the RCF treatment in terms of increasing plant N uptake (by 30.5%) and soil N pool storage (by 25.0%) while decreasing N losses (by 16.6%) in soil with 0 years of greenhouse vegetable cultivation. In soil with 2 and 18 years of greenhouse vegetable cultivation, the soil itself functions much better in exogenous N retention and supply, with the N storage and losses not significantly different between the RCF and RCF+CM treatments. We conclude that reduced fertilization with the co-application of chicken manure is optimal for plant growth promotion, output-input ratio increase, soil N fertility improvement, and environmental risk mitigation.

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Section: N Uptake Residue and Lossessupporting

confidence: 65%

Fertilization Practices: Optimization in Greenhouse Vegetable Cultivation with Different Planting Years

Pan

Pan²,

Jiao

et al. 2022

Sustainability

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“…(2017) [18] , Baloch et al (2014) [2] , Pathak et al (2017) [10] and Dash et al (2018) [3] . Similarly, The maximum number of leaves per plant ( [8] , Tripathi et al (2017) [18] , Thapa et al (2013) [17] and Yuan et al (2015) [19] .…”

Section: Growth Parametersmentioning

confidence: 99%

Effect of nitrogen level on growth and yield attributing characters of radish (Raphanus sativus L.) cv. Pusa Chetki

Shahi,

Kumar,

Silas

et al. 2024

Int. J. Adv. Biochem. Res.

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The present investigation entitled "Effect of nitrogen level on growth and yield Attributing character of radish (Raphanus sativus L.) cv. Pusa Chetki " was carried out during Rabi season in the year 2023-24 at Research plot of Department of Vegetable Science at Rama University Kanpur. The experiment was laid out in Randomised Block Design with eight treatments randomized thrice. Pusa Chetki variety was taken to study best suitable combination of Nitrogen to get highest yield in radish. The Different Nitrogen level used viz., N0 (Control); N1 (60 kg Nitrogen/ha); N2 (80 kg Nitrogen/ha); N3 (100 kg Nitrogen/ha); N4 (120 kg Nitrogen/ha); N5 (140 kg Nitrogen/ha); N6 (160 kg Nitrogen/ha) and N7 (180 kg Nitrogen/ha). It is observed from the investigation that the treatment N4-120 kg Nitrogen/ha gave the highest growth and yield parameters viz.,

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“…All treatments were applied one-time only and immediately prior to the first planting. The application rate for all treatments except for the control was equivalent to 100 kg potentially available N ha −1 , which is an intermediate N application rate for the radish crop used in this study, Raphanus raphanistrum sativus (Fox and Valenzuela, 1996;Jawad et al, 2015;Yuan et al, 2015). Plant available nitrogen (PAN) was calculated for each amendment using the following equation:…”

Section: Experimental Designmentioning

confidence: 99%

Toward Zero Hunger Through Coupled Ecological Sanitation-Agriculture Systems

Ryals

Bischak

Porterfield

et al. 2021

Front. Sustain. Food Syst.

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Ecological sanitation (EcoSan) systems capture and sanitize human excreta and generate organic nutrient resources that can support more sustainable nutrient management in agricultural ecosystems. An emerging EcoSan system that is implemented in Haiti and several other contexts globally couples container-based household toilets with aerobic, thermophilic composting. This closed loop sanitation system generates organic nutrient resources that can be used as part of an ecological approach to soil nutrient management and thus has the potential to contribute to Sustainable Development Goals 2 (zero hunger), 6 (clean water and sanitation for all), and 13 (climate change solutions). However, the role of organic nutrient resources derived from human excreta in food production is poorly studied. We conducted a greenhouse experiment comparing the impact of feces-derived compost on crop production, soil nutrient cycling, and nutrient losses with two amendments produced from wastewater treatment (pelletized biosolids and biofertilizer), urea, and an unfertilized control. Excreta-derived amendments increased crop yields 2.5 times more than urea, but had differing carry-over effects. After a one-time application of compost, crop production remained elevated throughout all six crop cycles. In contrast, the carry-over of crop response lasted two and four crop cycles for biosolids and biofertilizer, respectively, and was absent for urea. Soil carbon concentration in the compost amended soils increased linearly through time from 2.0 to 2.5%, an effect not seen with other treatments. Soil nitrous oxide emissions factors ranged from 0.3% (compost) to 4.6% (biosolids), while nitrogen leaching losses were lowest for biosolids and highest for urea. These results indicate that excreta-derived compost provides plant available nutrients, while improving soil health through the addition of soil organic carbon. It also improved biogeochemical functions, indicating the potential of excreta-derived compost to close nutrient loops if implemented at larger scales. If captured and safely treated through EcoSan, human feces produced in Haiti can meet up to 13, 22, and 11% of major crop needs of nitrogen, phosphorus, and potassium, respectively.

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Effect of N Management on Root Yield and N Uptake of Radishes in Southern China

Cited by 4 publications

References 14 publications

Fertilization Practices: Optimization in Greenhouse Vegetable Cultivation with Different Planting Years

Fertilization Practices: Optimization in Greenhouse Vegetable Cultivation with Different Planting Years

Effect of nitrogen level on growth and yield attributing characters of radish (Raphanus sativus L.) cv. Pusa Chetki

Toward Zero Hunger Through Coupled Ecological Sanitation-Agriculture Systems

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