Variety-Specific Nitrogen Fertilizer Recommendation for Lowland Rice

2005 ◽  
Vol 35 (13-14) ◽  
pp. 1891-1903 ◽  
Author(s):  
M. A. Saleque ◽  
U. A. Naher ◽  
N. N. Choudhury ◽  
A. T. M. S. Hossain
Keyword(s):  
Nitrogen Fertilizer ◽  
Lowland Rice ◽  
Fertilizer Recommendation

scholarly journals High Nitrogen Fertilization Modulates Morpho-Physiological Responses, Yield, and Water Productivity of Lowland Rice under Deficit Irrigation

Agronomy ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1291
Author(s):  
Nasr M. Abdou ◽  
Mohamed A. Abdel-Razek ◽  
Shimaa A. Abd El-Mageed ◽  
Wael M. Semida ◽  
Ahmed A. A. Leilah ◽  
...  
Keyword(s):  
Nitrogen Fertilizer ◽  
Irrigation Water ◽  
Nitrogen Fertilization ◽  
Deficit Irrigation ◽  
Physiological Responses ◽  
Water Productivity ◽  
Water Shortage ◽  
Rice Production ◽  
Lowland Rice ◽  
Nitrogen Fertilizers

Sustainability of rice production under flooding conditions has been challenged by water shortage and food demand. Applying higher nitrogen fertilization could be a practical solution to alleviate the deleterious effects of water stress on lowland rice (Oryza sativa L.) in semi-arid conditions. For this purpose, field experiments were conducted during the summer of 2017 and 2018 seasons. These trials were conducted as split-split based on randomized complete blocks design with soil moisture regimes at three levels (120, 100 and 80% of crop evapotranspiration (ETc), nitrogen fertilizers at two levels (N1—165 and N2—200 kg N ha−1) and three lowland Egyptian rice varieties [V1 (Giza178), V2 (Giza177) and V3 (Sakha104)] using three replications. For all varieties, growth (plant height, tillers No, effective tillers no), water status ((relative water content RWC, and membrane stability index, MSI), physiological responses (chlorophyll fluorescence, Relative chlorophyll content (SPAD), and yield were significantly increased with higher addition of nitrogen fertilizer under all water regimes. Variety V1 produced the highest grain yield compared to other varieties and the increases were 38% and 15% compared with V2 and V3, respectively. Increasing nitrogen up to 200 kg N ha−1 (N2) resulted in an increase in grain and straw yields by 12.7 and 18.2%, respectively, compared with N1. The highest irrigation water productivity (IWP) was recorded under I2 (0.89 kg m−3) compared to (0.83 kg m−3) and (0.82 kg m−3) for I1 and I3, respectively. Therefore, the new applied agro-management practice (deficit irrigation and higher nitrogen fertilizer) effectively saved irrigation water input by 50–60% when compared with the traditional cultivation method (flooding system). Hence, the new proposed innovative method for rice cultivation could be a promising strategy for enhancing the sustainability of rice production under water shortage conditions.

scholarly journals Determination of Nitrogen Fertilizer Recommendation Rates Estimated by Soil-Testing for Different Types of Paddy Soils

2010 ◽  
Vol 29 (1) ◽  
pp. 33-38 ◽  
Author(s):  
Young-Hun Moon ◽  
Young-Rip Kwon ◽  
Byung-Koo Ahn ◽  
Jin-Ho Lee ◽  
Dong-Chil Choi
Keyword(s):  
Nitrogen Fertilizer ◽  
Paddy Soils ◽  
Soil Testing ◽  
Fertilizer Recommendation ◽  
Different Types

Development of a Simplified Model for Nitrogen Fertilizer Recommendation for Maize, Wheat, and Sunflower in Northern Greece

2013 ◽  
Vol 44 (1-4) ◽  
pp. 62-79
Author(s):  
Vasileios Antoniadis ◽  
Vasiliki Anagnostopoulou ◽  
Konstantinos Theodorou ◽  
Spyridon Koutroumbas
Keyword(s):  
Nitrogen Fertilizer ◽  
Simplified Model ◽  
Northern Greece ◽  
Fertilizer Recommendation

Constructing a nitrogen fertilizer recommendation system using a dynamic model: what do farmers want?

1997 ◽  
Vol 13 (4) ◽  
pp. 225-228 ◽  
Author(s):  
J. U. Smith ◽  
A. G. Dailey ◽  
M. J. Glendining ◽  
N. J. Bradbury ◽  
T. M. Addiscott ◽  
...  
Keyword(s):  
Dynamic Model ◽  
Nitrogen Fertilizer ◽  
Recommendation System ◽  
Fertilizer Recommendation

scholarly journals Efficiency Use of Nitrogen In Several Palm Oil Varieties With Treatment of Nitrogen Fertilizer Levels In Main Nursery

1970 ◽  
Vol 5 (3) ◽  
pp. 428-433
Author(s):  
Muhammad Afrillah ◽  
Chairani Hanum ◽  
Abdul Rauf
Keyword(s):  
Palm Oil ◽  
Nitrogen Fertilizer ◽  
Block Design ◽  
Dry Weight ◽  
N Fertilization ◽  
Nitrogen Levels ◽  
Fertilizer Recommendation ◽  
Randomized Block Design ◽  
Optimal Value ◽  
Two Factors

Efficiency use of nitrogen in several palm oil varieties with treatment in nitrogen fertilizer level in main nursery. This study aims to determine the growth characteristics of several varieties of palm oil efficient use of nitrogen with the provision of various nitrogen levels in the main nursery. The research was conducted in the nursery area of Yos Sudarso Binjai road and the Soil Laboratory of the Palm Oil Research Center, Medan from May to November 2017, using a factorial randomized block design with two factors. The first factor is varieties consisting of 7 types namely Avros, Simalungun, PPKS 540, Yangambi, PPKS 718, PPKS 239, Langkat. The second factor is the N fertilization dose consisting of 5 levels ie 0, 25, 50, 75 and 100% from fertilizer recommendation. The results showed that the addition of N level increased the dry weight of the canopy, and the uptake of plant N nutrients. The efficient use of optimal Nitrogen in Yangambi varieties was obtained on N 25% fertilization, while Avros and PPKS 239 were at 50% recommendation level. 75% recommendation produce optimal value efficient use of N on Simalungun variety, PPKS 718, and Langkat. PPKS 540 varieties efficient use of N optimal at 100% recommendation level.

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