Effect of Water Depth on Nitrogen Use Efficiency and Nitrogen‐15 Balance in Lowland Rice 1

1987 ◽  
Vol 79 (2) ◽  
pp. 210-216 ◽  
Author(s):  
S. K. De Datta ◽  
W. N. Obcemea ◽  
R. Y. Chen ◽  
J. C. Calabio ◽  
R. C. Evangelista
Keyword(s):  
Water Depth ◽  
Nitrogen Use Efficiency ◽  
Lowland Rice ◽  
Nitrogen Use ◽  
Effect Of Water ◽  
Use Efficiency

scholarly journals Growth, production and water and nitrogen use efficiency of maize under water depths and nitrogen fertilization

2019 ◽  
Vol 23 (10) ◽  
pp. 747-753
Author(s):  
David H. Campelo ◽  
Adunias dos S. Teixeira ◽  
Luis C. J. Moreira ◽  
Claudivan F. de Lacerda
Keyword(s):  
Water Depth ◽  
Nitrogen Use Efficiency ◽  
Maximum Yield ◽  
Field Capacity ◽  
Nitrogen Use ◽  
Area Index ◽  
N Dose ◽  
Irrigation Depth ◽  
Use Efficiency ◽  
Water Depths

ABSTRACT The objective of this study was to evaluate the growth, the production components and the water (WUE) and nitrogen use efficiency (NUE) in maize (Zea mays L.), as function of water depths and nitrogen doses. The experimental design was randomized blocks in a split-plot scheme with four repetitions. The irrigation treatments applied in the plots were composed of four water depths: 80, 90, 100 and 110% of the water requirement, based on the soil field capacity, while the N doses, distributed in the subplots, were 0, 60, 120 and 180 kg ha-1. Increases in water depths and in N doses promote linear increases in plant height and leaf area index. For cycle I (2015) the maximum yield (16,778.3 kg ha-1) was reached with the irrigation depth of 538.1 mm and nitrogen dose of 180 kg ha-1; and for cycle II (2016), the maximum yield was reached with the irrigation depth corresponding to 505 mm and N dose of 180 kg ha-1, yielding 17,819.5 kg ha-1. The highest values of WUE (4.1 and 3.8 kg m-3) were estimated in cycle I (2015) for 432.7 mm and in cycle II (2016) for 359.6 mm, respectively; while the highest values of NUE (67.5 and 65.3 kg kg-1) were estimated in cycle I (2015), for the water depth of 555.7 mm and nitrogen dose of 113.3 kg ha-1, and in cycle II (2016), for the water depth of 506 mm and nitrogen dose of 107.7 kg ha-1.

Nitrogen-use efficiency in tropical lowland rice systems: contributions from indigenous and applied nitrogen

1996 ◽  
Vol 47 (1) ◽  
pp. 1-12 ◽  
Author(s):  
K.G. Cassman ◽  
G.C. Gines ◽  
M.A. Dizon ◽  
M.I. Samson ◽  
J.M. Alcantara
Keyword(s):  
Nitrogen Use Efficiency ◽  
Lowland Rice ◽  
Nitrogen Use ◽  
Tropical Lowland ◽  
Use Efficiency ◽  
Applied Nitrogen

Nitrous oxide and nitric oxide emissions and nitrogen use efficiency as affected by nitrogen placement in lowland rice fields

2017 ◽  
Vol 110 (2) ◽  
pp. 277-291 ◽  
Author(s):  
Yam Kanta Gaihre ◽  
Upendra Singh ◽  
S. M. Mofijul Islam ◽  
Azmul Huda ◽  
M. R. Islam ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Nitrous Oxide ◽  
Nitrogen Use Efficiency ◽  
Rice Fields ◽  
Lowland Rice ◽  
Nitrogen Use ◽  
Nitric Oxide Emissions ◽  
Use Efficiency

Rice yields and nitrogen use efficiency with different fertilizers and water management under intensive lowland rice cropping systems in Bangladesh

2016 ◽  
Vol 106 (2) ◽  
pp. 143-156 ◽  
Author(s):  
S. M. Mofijul Islam ◽  
Yam Kanta Gaihre ◽  
A. L. Shah ◽  
Upendra Singh ◽  
Md Imran Ullah Sarkar ◽  
...  
Keyword(s):  
Water Management ◽  
Nitrogen Use Efficiency ◽  
Cropping Systems ◽  
Lowland Rice ◽  
Nitrogen Use ◽  
Rice Yields ◽  
Use Efficiency ◽  
Rice Cropping Systems

The role of Azolla cover in improving the nitrogen use efficiency of lowland rice

2004 ◽  
Vol 263 (1) ◽  
pp. 311-321 ◽  
Author(s):  
Maria Andrea R. de Macale ◽  
Paul L.G. Vlek
Keyword(s):  
Nitrogen Use Efficiency ◽  
Lowland Rice ◽  
Nitrogen Use ◽  
Use Efficiency
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