scholarly journals Effect of Organic Matter on Rice Nitrogen and Phosphorus Use Efficiency Under Calcareous Sodic Soil of Amibara District, Ethiopia

2019 ◽  
pp. 178-185
Author(s):  
Bethel Nekir
Keyword(s):  
Filter Cake ◽  
Upland Rice ◽  
Nutrient Use Efficiency ◽  
Rice Grain ◽  
Recovery Efficiency ◽  
Phosphorus Use Efficiency ◽  
Nitrogen And Phosphorus ◽  
Sodic Soils ◽  
Sodic Soil ◽  
Use Efficiency

Wastes produced from sugarcane industries are organic in nature, and it augmented the soil properties as well as improves crop yield and quality. In 2016 field experiment was conducted to investigate effect of filter cake and bagasse for nitrogen and phosphorus use efficiency of upland rice grown on calcareous sodic soils of Amibara District. The result revealed that plant nutrient use efficiency indices agronomic efficiency, agrophysiological efficiency and apparent recovery efficiency of both nitrogen and phosphorus were significantly (P<0.05) affected by the application of filter cake and bagasse. The maximum nitrogen was recovered at 20 t ha-1 filter cake followed by combined application of 10 t ha-1 bagasse + 20 t ha-1 FC that gave 45.10 % from kg quantity of nitrogen uptake per unit of kg nutrient applied. But, the minimum nitrogen recovery efficiency was recorded at 20 t ha-1 bagasse + 20 t ha-1 filter cake. The Phosphorus apparent recovery efficiency ranged from 18.55- 32.91 %. The interaction of filter cake with bagasse also highly significantly (P < 0.01) affected rice grain yield. It can be encouraged to use these wastes with combination of inorganic chemical fertilizers under various cropping systems to enhance nutrient availability to plant under calcareous sodic soil.

scholarly journals Subsurface-Applied Coated Nitrogen Fertilizer Enhanced Wheat Production by Improving Nutrient-Use Efficiency with Less Ammonia Volatilization

Agronomy ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 2396
Author(s):  
Muhammad Yaseen ◽  
Adeel Ahmad ◽  
Muhammad Naveed ◽  
Muhammad Asif Ali ◽  
Syed Shahid Hussain Shah ◽  
...  
Keyword(s):  
Ammonia Volatilization ◽  
Nutrient Use Efficiency ◽  
Ammonium Phosphate ◽  
Crop Productivity ◽  
N Fertilization ◽  
N Fertilizer ◽  
Ammonia Emissions ◽  
Nitrogen And Phosphorus ◽  
Nutrient Use ◽  
Use Efficiency

Nitrogen (N) is an essential plant nutrient, therefore, N-deficient soils affect plant growth and development. The excessive and unwise application of N fertilizers result in nutrient losses and lower nutrient use efficiency that leads to the low crop productivity. Ammonia volatilization causes a major loss after N fertilization that causes environmental pollution. This experiment was conducted to evaluate the effectiveness of coating and uncoating N fertilizer in enhancing yield and nutrient-use efficiency with reduced ammonia emissions. The recommended rate of nitrogen and phosphorus, urea and di-ammonium phosphate (DAP) fertilizers were coated manually with 1% polymer solution. DAP (coated/uncoated) and potassium were applied at the time of sowing as subsurface application. While urea (coated/uncoated) was applied as surface and subsurface application. Results showed that nutrient use efficiencies of wheat were found to be maximum with the subsurface application of coated N fertilizer which increased nutrient-use efficiency by 44.57 (N), 44.56 (P) and 44.53% (K) higher than the surface application of uncoated N fertilizer. Ammonia emissions were found the lowest with subsurface-applied coated N fertilizer. Thus, coated fertilizer applied via subsurface was found the best technique to overcome the ammonia volatilization with an improvement in the yield and nutrient-use efficiency of wheat.

UPLAND RICE GENOTYPES EVALUATION FOR PHOSPHORUS USE EFFICIENCY

2013 ◽  
Vol 36 (12) ◽  
pp. 1868-1880 ◽  
Author(s):  
N. K. Fageria ◽  
O. P. Moraes ◽  
M. J. Vasconcelos
Keyword(s):  
Upland Rice ◽  
Phosphorus Use Efficiency ◽  
Use Efficiency ◽  
Rice Genotypes

scholarly journals Effects of Phosphorus Sources and Application Rates on Nitrogen and Phosphorus Concentrations and Phosphorus Use Efficiency in Rice Plant

2019 ◽  
pp. 1-8
Author(s):  
Prosper I. Massawe ◽  
Jerome Mrema
Keyword(s):  
Oryza Sativa L ◽  
Block Design ◽  
Phosphorus Use Efficiency ◽  
Nitrogen And Phosphorus ◽  
Total N ◽  
Soil P ◽  
Application Rates ◽  
Use Efficiency ◽  
Arusha Region ◽  
Phosphorus Application

A study was conducted to determine the effects of nitrogen (N) and phosphorus (P) concentrations and P use efficiency from Minjingu phosphate rock (MPR), Minjingu mazao and Triple Super Phosphate (TSP) fertilizers under irrigated rice (Oryza sativa L.) production in Lekitatu village, Meru district, Arusha region, Tanzania. The initial soil pH in the two experimental sites was slightly alkaline while total N and available P was low and medium respectively. Randomized Complete Block Design (RCBD) with three replications was adopted and phosphorus was applied at the rates of 0, 20, 40 and 60 kg P ha-1 as MPR, Minjingu mazao and TSP. Nitrogen was applied uniformly at a rate of 60 kg N ha-1 as urea taking into account the 10% N contained in the Minjingu mazao fertilizer. Phosphorus application increased N and P contents in the rice plants and phosphorus use efficiency (PUE) with the increase of P levels from 0 to 60 kg P ha-1 for all P sources. The site 1 had more PUE than site 2 due to higher moisture content. These effects were due to increased availability and nutrients uptake by plants, particularly P. Based on the results, it is recommended that; Minjingu mazao at the rates of 40 to 60 kg P ha-1, MPR and TSP at a rate of 60 kg P ha-1, respectively have to be adopted for sustainable soil P use in rice production areas of Lekitatu village.

Soil nitrogen and phosphorus were greater in overlapping areas of fields in Alberta, Saskatchewan, Manitoba, and Ontario

2020 ◽  
pp. 1-4
Author(s):  
S.J. Crittenden ◽  
J. Fitzmaurice ◽  
M. Lewis ◽  
K. Reid ◽  
B. Irvine
Keyword(s):  
Nutrient Use Efficiency ◽  
Nutrient Loss ◽  
Soil Nitrate ◽  
Soil Cores ◽  
Nitrogen And Phosphorus ◽  
Olsen P ◽  
Driving Pattern ◽  
Nitrate N ◽  
Nutrient Use ◽  
Use Efficiency

A total of 344 soil cores were taken in annually cropped fields of Alberta, Saskatchewan, Manitoba, and Ontario from 2011 to 2013 in areas where the field shapes, or obstacles within fields, required the driving pattern of farm operations to overlap. Soil nitrate-N concentrations in overlapping areas were 60% greater, soil Olsen-P concentrations were 23% greater, and pH was 0.5 units greater at 0–15 cm depth compared with non-overlapping areas, suggesting smaller nutrient use efficiency and potential for greater nutrient loss.

Optimizing the nutritional quality and phosphorus use efficiency of alfalfa under drip irrigation with nitrogen and phosphorus fertilization

2020 ◽  
Vol 112 (4) ◽  
pp. 3129-3139
Author(s):  
Qianbing Zhang ◽  
Junying Liu ◽  
Xuanshuai Liu ◽  
Yanliang Sun ◽  
Shengyi Li ◽  
...  
Keyword(s):  
Drip Irrigation ◽  
Nutritional Quality ◽  
Phosphorus Fertilization ◽  
Phosphorus Use Efficiency ◽  
Nitrogen And Phosphorus ◽  
Use Efficiency
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