scholarly journals Combined application of nitrogen and phosphorus to enhance nitrogen use efficiency and close the wheat yield gap on varying soils in semi‐arid conditions

2019 ◽  
Vol 205 (6) ◽  
pp. 635-646 ◽  
Author(s):  
Therese M. McBeath ◽  
Vadakattu V. S. R. Gupta ◽  
Rick S. Llewellyn ◽  
Sean D. Mason ◽  
Christopher W. Davoren ◽  
...  
Keyword(s):  
Nitrogen Use Efficiency ◽  
Wheat Yield ◽  
Nitrogen And Phosphorus ◽  
Yield Gap ◽  
Nitrogen Use ◽  
Combined Application ◽  
Arid Conditions ◽  
Use Efficiency ◽  
Semi Arid

scholarly journals Efficiency of nitrogen use by sesame genotypes under brazilian semi-arid conditions

2021 ◽  
Vol 37 ◽  
pp. e37013
Author(s):  
Manoel Galdino Dos Santos ◽  
Rayanne Maria Paula Ribeiro ◽  
Hamurábi Anizio Lins ◽  
Giordanio Bruno Silva Oliveira ◽  
José Ricardo Tavares de Alburquerque ◽  
...  
Keyword(s):  
Nitrogen Loss ◽  
Nitrogen Use ◽  
Agronomic Efficiency ◽  
Sesame Seeds ◽  
Arid Conditions ◽  
Use Efficiency ◽  
Semi Arid Region ◽  
Sesame Genotypes ◽  
The Cost ◽  
Semi Arid

Nitrogen (N) is an essential macronutrient for plant growth and rate applications can influence the performance of sesame, and when applied in excess can cause nitrogen loss in the environment, and consequently make the cost of production more costly to the producer. Therefore, the objective of this work was to evaluate the efficiency of nitrogen use by different cultivars of irrigated sesame seeds under the edaphoclimatic conditions of the northeastern semi-arid region in two harvests. The experiments were carried out from February to May (1st harvest) and from July to October (2nd harvest) in 2016. The treatments were arranged in a split plot scheme, in which the plots were the five nitrogen doses (0, 30, 60, 90 and 120 kg ha-1), and in the subplots, the four sesame genotypes (CNPA G2, CNPA G3, CNPA G4 and BRS Seda), the design was in randomized complete blocks with four replications. The nitrogen use efficiency assessments evaluated were: agronomic efficiency (AE), physiological efficiency (PE), agrophysiological efficiency (APE), recovery efficiency (RE) and efficiency of use (EU). The rate that provided the greatest efficiency of use was 30 kg ha-1 of N applied. The cultivar BRS Seda had greater efficiency of use in relation to the other cultivars studied. The crop that had better efficiency of use was the 2nd agricultural harvest.

scholarly journals Synthesis of Climate, Soil Factors, and Nitrogen Management Practices Affecting the Responses of Wheat Productivity and Nitrogen Use Efficiency to Nitrogen Fertilizer in China

2018 ◽  
Vol 10 (10) ◽  
pp. 3533 ◽  
Author(s):  
Yunqi Wang ◽  
Jiapeng Yang ◽  
Rui Zhang ◽  
Zhikuan Jia
Keyword(s):  
Nitrogen Use Efficiency ◽  
Management Practices ◽  
Wheat Yield ◽  
Soil Factors ◽  
Nitrogen Use ◽  
N Application ◽  
Average Annual Temperature ◽  
Coated Urea ◽  
Use Efficiency ◽  
N Management

The reported effects of nitrogen (N) fertilizer on wheat yield and nitrogen use efficiency (NUE) vary greatly, due to differences in climate, soil factors, and N management practices in different regions of China. We collected literature published during 1950–2017 that reported the yield and NUE for wheat in China, under N application and control treatments, and analyzed the data therein. A significant increase in yield was observed with N application, and varied with climate, soil factors, and N management practices in different regions. A larger increase in yield was observed under an average annual temperature of 13–15 °C, an average annual precipitation of >800 mm, respectively. Greater yield-increasing effects were observed in soil with a coarse soil texture, lower soil total N, available N, and a soil pH of ≤7 and >8, respectively. In Northwest China, the yield increase was greater under multiple coated urea applications after anthesis, while the higher NUE was observed under single coated urea application before anthesis. In North China, the yield and NUE were greater under multiple coated urea applications before anthesis. In South China, the yield and NUE were greater under multiple N applications. Consequently, to improve wheat yield and NUE, site-specific N management practices should be adopted.

scholarly journals Water and nitrogen water use efficiency in forage palm irrigated with salt water in the Neossolo

2020 ◽  
pp. 683-690
Author(s):  
Patrícia Ferreira da Silva ◽  
Rigoberto Moreira de Matos ◽  
José Dantas Neto ◽  
Vitória Ediclécia Borges ◽  
Thiago Galvão Sobrinho ◽  
...  
Keyword(s):  
Nitrogen Use Efficiency ◽  
Nitrogen Fertilization ◽  
Arid Region ◽  
Saline Water ◽  
Salt Water ◽  
Nitrogen Use ◽  
Nitrogen Levels ◽  
Use Efficiency ◽  
Semi Arid Region ◽  
Semi Arid

The objectives were to analyze the water and nitrogen use efficiency by forage palm in different irrigation depths with saline water and nitrogen fertilization levels in the Brazilian semi-arid region. The experiment was conducted under field condition during one year of cultivation (360 days). The experimental design was a complete randomized block and 5 x 5 factorial scheme with five irrigation depths (125, 100, 75, and 25% of ET0) and five levels of nitrogen fertilization (0, 150, 300, 450 and 600 kg ha-1 of N) and three replicates. Irrigation and acceptable nitrogen fertilization resulted in a good water and fertilization management. Water and nitrogen use efficiency of forage palm were higher, when water depths and the nitrogen levels supplied to the soil were increased. The 125% ET0 depth showed a higher efficiency of water and nitrogen use in the forage palm during 360 days of study. In conditions of low nitrogen supply, the efficiency of nitrogen use is directly and indirectly associated with the fresh mass yield; while under high supply, the efficiency of the use of nitrogen is more effective. The use of irrigation and nitrogen fertilization in the semi-arid region is recommended to obtain higher productivity of water and nitrogen from the forage palm.

Improved Crop Management Achieved High Wheat Yield and Nitrogen Use Efficiency

2021 ◽  
Author(s):  
Tingyao Cai ◽  
Yongliang Chen ◽  
Junxiao Pan ◽  
Youliang Ye ◽  
Qi Miao ◽  
...  
Keyword(s):  
Nitrogen Use Efficiency ◽  
Wheat Yield ◽  
Crop Management ◽  
Nitrogen Use ◽  
Use Efficiency

scholarly journals Co-application of high temperature biochar with 3,4-dimethylpyrazole-phosphate treated ammonium sulphate improves nitrogen use efficiency in maize

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Niguss Solomon Hailegnaw ◽  
Filip Mercl ◽  
Martin Kulhánek ◽  
Jiřina Száková ◽  
Pavel Tlustoš
Keyword(s):  
High Temperature ◽  
Ammonium Sulphate ◽  
Nitrogen Use Efficiency ◽  
Biomass Yield ◽  
N Uptake ◽  
Nitrification Inhibitor ◽  
Nitrogen Use ◽  
Combined Application ◽  
Superior Effect ◽  
Use Efficiency

AbstractThis study aimed on the increasing nitrogen use efficiency (NUE) of maize via the use of high temperature produced biochar (700 °C). Maize was grown to maturity on two contrasting soils (acidic Cambisol and neutral Chernozem) in pots with a treatment of biochar co-applied with ammonium sulphate stabilised by a nitrification inhibitor (3,4-dimethylpyrazole-phosphate, DMPP) or un-stabilised. The combination of biochar with ammonium sulphate containing DMPP increased maize biomass yield up to 14%, N uptake up to 34% and NUE up to 13.7% compared to the sole application of ammonium sulphate containing DMPP. However, the combination of biochar with un-stabilised ammonium sulphate (without DMPP) had a soil-specific influence and increased maize biomass only by 3.8%, N uptake by 27% and NUE by 11% only in acidic Cambisol. Further, the biochar was able to increase the uptake of phosphorus (P) and potassium (K) in both stabilised and un-stabilised treatments of ammonium sulphate. Generally, this study demonstrated a superior effect from the combined application of biochar with ammonium sulphate containing DMPP, which improved NUE, uptake of P, K and increased maize biomass yield. Such a combination may lead to higher efficiency of fertilisation practices and reduce the amount of N fertiliser to be applied.

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