Effect of dairy slurry application rate and forage type on production, soil nutrient status and nitrogen-use efficiency

2014 ◽  
Vol 70 (1) ◽  
pp. 44-58 ◽  
Author(s):  
A. J. Dale ◽  
A. S. Laidlaw ◽  
J. S. Bailey ◽  
C. S. Mayne
Keyword(s):  
Nitrogen Use Efficiency ◽  
Soil Nutrient ◽  
Nutrient Status ◽  
Application Rate ◽  
Soil Nutrient Status ◽  
Nitrogen Use ◽  
Use Efficiency ◽  
Forage Type

scholarly journals Nitrogen Use Efficiency for Growth of Fagus crenata Seedlings Under Elevated Ozone and Different Soil Nutrient Conditions

Forests ◽  
2020 ◽  
Vol 11 (4) ◽  
pp. 371 ◽  
Author(s):  
Makoto Watanabe ◽  
Hiroka Hiroshima ◽  
Yoshiyuki Kinose ◽  
Shigeaki Okabe ◽  
Takeshi Izuta
Keyword(s):  
Nitrogen Use Efficiency ◽  
Soil Nutrient ◽  
Nutrient Supply ◽  
Fagus Crenata ◽  
Nitrogen Use ◽  
Elevated Ozone ◽  
Forest Production ◽  
Leaf Level ◽  
Use Efficiency ◽  
Nutrient Conditions

Ozone is a phytotoxic gaseous air pollutant and its negative effects on forest production are a major concern. To understand the effects of ozone on forest production, it is important to clarify the nitrogen use efficiency (NUE) for tree growth under elevated ozone conditions, because nitrogen is a primal limiting factor of forest production in many cool-temperate forests. Soil nutrient conditions are considered factors affecting ozone susceptibility of tree growth. Therefore, in the present study, we investigated the effects of ozone on NUE for the growth of Siebold’s beech (Fagus crenata Blume) seedlings grown under different soil nutrient conditions. Seedlings of Siebold’s beech were grown under three gas treatments (charcoal-filtered air or ozone at 1.0 or 1.5 times the ambient concentration) in combination with three soil nutrient conditions (non-fertilised, low-fertilised or high-fertilised) for two growing seasons. Based on the dry mass and nitrogen concentration in each plant organ, we calculated NUE and its components, including nitrogen productivity (NP) and the mean residence time of nitrogen (MRT) during the second growing season. Ozone did not decrease the NUE of the seedlings during the second growing season, whereas leaf level photosynthetic nitrogen use efficiency (PNUE), a component of NP, was decreased by ozone. On the other hand, the soil nutrient supply decreased the NUE of the seedlings. Reductions in both NP and MRT were attributed to the decrease in NUE because of soil nutrient supply, whereas PNUE did not respond to soil nutrient supply. There was no significant interaction of ozone and soil nutrient supply on the NUE, or its components, of the seedlings. Our results indicated that there is a difference in the response between the NUE for individual growth and that of leaf level PNUE of Siebold’s beech seedlings to ozone and soil nutrient supply.

Split application of stabilized ammonium nitrate improved potato yield and nitrogen-use efficiency with reduced application rate in tropical sandy soils

2020 ◽  
Vol 254 ◽  
pp. 107847 ◽  
Author(s):  
Emerson F.C. Souza ◽  
Rogério P. Soratto ◽  
Patricio Sandaña ◽  
Rodney T. Venterea ◽  
Carl J. Rosen
Keyword(s):  
Ammonium Nitrate ◽  
Nitrogen Use Efficiency ◽  
Sandy Soils ◽  
Application Rate ◽  
Potato Yield ◽  
Split Application ◽  
Nitrogen Use ◽  
Use Efficiency

scholarly journals Characteristics and Driving Factors of Nitrogen-Use Efficiency in Chinese Greenhouse Tomato Cultivation

2022 ◽  
Vol 14 (2) ◽  
pp. 805
Author(s):  
Tianjing Ren ◽  
Yu’e Li ◽  
Tiantian Miao ◽  
Waseem Hassan ◽  
Jiaqi Zhang ◽  
...  
Keyword(s):  
Nitrogen Use Efficiency ◽  
Organic Nitrogen ◽  
Organic Matter Content ◽  
Application Rate ◽  
Matter Content ◽  
Nitrogen Application ◽  
Nitrogen Use ◽  
Greenhouse Tomato ◽  
Use Efficiency ◽  
Nitrogen Application Rate

Excessive nitrogen fertilizer application in greenhouses could cause a significant variation in the nitrogen-use efficiency at the regional scale. This study aims to quantify agronomic nitrogen-use efficiency (AEN) and identify its driving factors across Chinese greenhouse tomato cultivation. Three hundred and forty-eight AEN values were obtained from 64 papers, including mineral nitrogen (MN) and mineral combined with organic nitrogen (MON) treatments. The average AEN values for the MN and MON treatments were 56.6 ± 7.0 kg kg−1 and 34.6 ± 3.5 kg kg−1, respectively. The AEN of the MN treatment was higher than that of the MON treatment for cultivation using soil with an organic matter content of less than 10 g kg−1 and the drip fertigation method. The AENs of the MN and MON treatments were divided into two segments according to the nitrogen application rate. The inflection points of the nitrogen application rate were 290 and 1100 kg N ha−1 for the MN and MON treatments, respectively. When the ratio of organic nitrogen to total nitrogen was less than 0.4, it was beneficial for improving the AEN. The soil organic matter content and the nitrogen application rate were the most critical factors determining the AEN. These results suggest that rationally reducing the nitrogen input and partially substituting mineral nitrogen with organic nitrogen can help improve the nitrogen-use efficiency.

scholarly journals Optimization of Nitrogen Fertilizer Application with Climate-Smart Agriculture in the North China Plain

Water ◽  
2021 ◽  
Vol 13 (23) ◽  
pp. 3415
Author(s):  
Jinsai Chen ◽  
Guangshuai Wang ◽  
Abdoul Kader Mounkaila Hamani ◽  
Abubakar Sunusi Amin ◽  
Weihao Sun ◽  
...  
Keyword(s):  
Nitrogen Use Efficiency ◽  
Nitrogen Fertilizer ◽  
Maize Yield ◽  
Application Rate ◽  
N2o Emissions ◽  
Nitrogen Application ◽  
Residual Concentration ◽  
Nitrogen Use ◽  
N Application ◽  
Use Efficiency

Long−term excessive nitrogen fertilizer input has resulted in several environmental problems, including an increase in N2O emissions and the aggravation of nitrate leaching; monitoring nitrogen fertilizer is crucial for maize with high yield. This study aimed to optimize the amount of nitrogen applied to maize by Climate−Smart Agriculture (CSA) so as to continuously improve agricultural productivity and reduce or eliminate N2O emissions as much as possible. Field experiments with a completely randomized design were conducted to examine the effects of six nitrogen treatments (N application levels of 0, 120, 180, 240, 300, 360 kg·ha−1, respectively) on N2O emissions, residual concentration of nitrate and ammonium nitrogen, maize yield, and nitrogen utilization efficiency in 2018 and 2019. The results indicated that the residual concentration of nitrate nitrogen (NO3-−N) in the two seasons significantly increased; N2O emissions significantly increased, and the nitrogen fertilizer agronomic efficiency and partial productivity of maize fell dramatically as the nitrogen application rate increased. The maize grain yield rose when the N application amount was raised (N application amount <300 kg·ha−1) but decreased when the N application amount > 300 kg·ha−1. An increase in the nitrogen application rate can decrease nitrogen use efficiency, increase soil NO3-−N residual, and N2O emissions. Reasonable nitrogen application can increase maize yield and reduce N2O emissions and be conducive to improving nitrogen use efficiency. By considering summer maize yield, nitrogen use efficiency, and farmland ecological environment, 173.94~178.34 kg N kg·ha−1 could be utilized as the nitrogen threshold for summer maize in the North China Plain.

scholarly journals Nutrient Use Efficiency as a Strong Indicator of Nutritional Security and Builders of Soil Nutrient Status through Integrated Nutrient Management Technology in a Rice-Wheat System in Northwestern India

2021 ◽  
Vol 13 (8) ◽  
pp. 4551
Author(s):  
Mehakpreet Kaur Randhawa ◽  
Salwinder Singh Dhaliwal ◽  
Vivek Sharma ◽  
Amardeep Singh Toor ◽  
Sandeep Sharma ◽  
...  
Keyword(s):  
Nutrient Management ◽  
Nutrient Use Efficiency ◽  
Farmyard Manure ◽  
Poultry Manure ◽  
Soil Nutrient ◽  
Nutrient Status ◽  
Soil Nutrient Status ◽  
Nutritional Security ◽  
Nutrient Use ◽  
Use Efficiency

Nutrient use efficiency is reported as a strong indicator of the buildup soil nutrient status for nutritional security of crops through an integrated nutrient management approach under a rice-wheat system. The data revealed that integrated application of manures and fertilizers reported maximum organic carbon (0.39%) in the treatment receiving 100% of the recommended dose of fertilizers (RDF) + farmyard manure and lowering the pH to 6.39. The maximum available N (360.8 kg ha−1) was found in 100% RDF + press mud treatment; available P (66.30 kg ha−1) was found in 75% RDF + poultry manure; and available K, Zn, Cu, and Fe (226.3 kg ha−1 and 2.220, 0.732, and 36.87 mg kg−1, respectively) in 100% RDF + farmyard manure treatments. Similarly, total macro- and micronutrient content in soil increased with the addition of organic manures alone or in combination with chemical fertilizers. The highest agronomic efficiency and utilization efficiency of nitrogen (41.83 and 102.55 kg kg−1, respectively) and phosphorous (83.57 and 204.9 kg kg−1, respectively) were recorded in the treatment receiving 75% RDF + poultry manure. This study concluded that the integrated application of manures and chemical fertilizers is a must for improving soil nutrient status and nutrient use efficiency and ultimately enhances nutritional security under a rice-wheat system.

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