scholarly journals Agronomic, Water Productivity and Economic Analysis of Irrigated Rice under Different Nitrogen and Water Management Methods

2019 ◽  
Vol 10 (01) ◽  
pp. 92-109
Author(s):  
Abdulai Yakubu ◽  
Joseph Ofori ◽  
Christiana Amoatey ◽  
Davie M. Kadyampakeni
Keyword(s):  
Water Management ◽  
Economic Analysis ◽  
Water Productivity ◽  
Irrigated Rice

Grain yield, water productivity and CH 4 emission of irrigated rice in response to water management in south China

2016 ◽  
Vol 163 ◽  
pp. 319-331 ◽  
Author(s):  
Kaiming Liang ◽  
Xuhua Zhong ◽  
Nongrong Huang ◽  
Rubenito M. Lampayan ◽  
Junfeng Pan ◽  
...  
Keyword(s):  
Water Management ◽  
Grain Yield ◽  
South China ◽  
Water Productivity ◽  
Irrigated Rice ◽  
Response To Water

scholarly journals Crop Performance and Water Productivity of Irrigated Rice under Different Water Management Systems

2017 ◽  
Vol 14 (1) ◽  
pp. 105-114
Author(s):  
Uttam Kumer Sarker ◽  
Romij Uddin ◽  
Abdur Rahman Sarkar ◽  
Abdus Salam ◽  
Ahmed Khairul Hasan ◽  
...  
Keyword(s):  
Water Management ◽  
Water Productivity ◽  
Management Systems ◽  
Irrigated Rice ◽  
Crop Performance

scholarly journals Water and Fertilizer Productivity in Dry Season Irrigated Rice at Farmer’s Field

2014 ◽  
Vol 17 (1-2) ◽  
pp. 64-74
Author(s):  
M Maniruzzaman ◽  
JC Biswas
Keyword(s):  
Water Management ◽  
Management Practices ◽  
Rice Yield ◽  
Management Practice ◽  
Water Productivity ◽  
Irrigation Scheduling ◽  
Fertilizer Treatment ◽  
Fertilizer Management ◽  
Irrigated Rice ◽  
Water Treatments

Two on-farm experiments were conducted during dry seasons, 2001-04 at Kurigram and Pirgonj in Thakurgaon districts to select the best water management practices and to find out the suitable and economically viable combination of irrigation scheduling and fertilizer dose for maximizing irrigated rice yield. In alternate irrigation at saturation (AIS) treatment, about 28% water was saved compared to continuous flooding (CF), but it was needed to apply water frequently. However, alternate wetting and drying (AWD) method saved 31% and 39% water in Kurigram and Pirgonj, respectively compared to CF. In both the sites, there was no significant yield difference among the water treatments, though the applied water varied from 836-1046 mm in Kurigram and 802-1092 mm in Pirgonj. The water productivity in Kurigram ranged from 0.62 to 0.89 kg m-3, whereas in Pirgonj it varied from 0.54 to 0.75 kg m-3. Besides, AWD had the highest water productivity irrespective of locations and farmer can follow AWD practices for achieving competitive rice yield with reduced irrigation cost. The soil test based (STB) fertilizer management gave the highest grain yield followed by BRRI recommend dose irrespective of water managements. About 33-35% less amount of water was required in AWD compared to farmer’s practice (FP) in both the sites having 0.5-1.0 t ha-1 yield advantage. In both the locations, the water productivity was the highest with STB fertilizer in combination with AWD water management which required additional fertilizer cost of Tk. 2800 ha-1, but resulted in added benefit of Tk. 8400 ha-1 compared to FP. In STB fertilizer treatment, nutrient uptake was more compared to BRRI recommendation and FP. It was concluded from the study that AWD water management practice was the best option for water saving and improving water productivity. The combination of AWD with STB fertilizer management is suitable for maximum return from rice cultivation in light textured soils.DOI: http://dx.doi.org/10.3329/brj.v17i1-2.20902Bangladesh Rice j. 2013, 17(1&2): 64-74

scholarly journals Prediction of future methane emission from irrigated rice paddies in central Thailand under different water management practices

2016 ◽  
Vol 566-567 ◽  
pp. 641-651 ◽  
Author(s):  
Kazunori Minamikawa ◽  
Tamon Fumoto ◽  
Toshichika Iizumi ◽  
Nittaya Cha-un ◽  
Uday Pimple ◽  
...  
Keyword(s):  
Water Management ◽  
Methane Emission ◽  
Management Practices ◽  
Rice Paddies ◽  
Irrigated Rice ◽  
Central Thailand

scholarly journals Effect of Water Management Practices on Rice Yield, Water Productivity and Water Savings under Irrigated Rice Paddy Ecosystem

2017 ◽  
Vol 9 (2) ◽  
pp. 79-84 ◽  
Author(s):  
SC Barman ◽  
MA Ali ◽  
HJ Hiya ◽  
KR Sarker ◽  
MA Sattar
Keyword(s):  
Water Management ◽  
Water Level ◽  
Management Practices ◽  
Rice Yield ◽  
Water Productivity ◽  
Ground Level ◽  
Productivity Index ◽  
Water Savings ◽  
Maximum Water ◽  
Irrigation Treatments

A field experiment was carried out during the Boro season 2013 to find out the effects of water management practices on rice yield performance and water productivity index at Old Brahmaputra flood plain paddy land, Muktagacha, Mymensingh. The experiment was laid out in randomized complete block design (RCBD) with six (6) irrigation treatments. Two treatments, T1 and T3 were kept under continuous standing water levels (10 cm and 5 cm respectively) while in treatment T5 irrigation water was supplied for 1st 3 weeks then followed mid season drain out and re-flooded at flowering stage. Three alternate wetting and drying irrigation treatments, T2, T4 and T6 were selected in which irrigation water was applied when water level dropped 20cm, 10cm and 15cm below ground level, respectively. All the irrigation treatments significantly affected the rice yield and yield contributing parameters. The study revealed that the highest grain yield (5950 kg ha-1) was found in treatment T5 which was identical with AWDI treatment T4 (5820 kg ha-1) followed by AWDI treatment T6 (5460 kg ha-1). On the contrary, rice yield of 3350 kg ha-1, 4470 kg ha-1 and 4810 kg ha-1 were found in the treatment T1, T2 and T3, respectively. It was found that AWDI treatment T2 showed maximum water savings (15.1%) followed by T6 (11.3%), T4 (7.59%) and T5 (3.8%), however rice yield in the treatment T2 (4470 kg ha-1) was significantly lower compared to T6, T4 and T5 treatment. Therefore, it may be inferred that treatment T4 (AWDI; irrigation when water level fell 10 cm from ground level), T5 (Irrigation for 1st 3 weeks, then mid-season drain out and re-flooding at flowering) and T6 (AWDI; irrigation when water level fell 15cm from ground level) would be the feasible choice for the water savings, higher rice yield as well as maximum water productivity index (0.478, 0.472 and 0.467, respectively) for sustaining rice farming during the dry Boro season in Bangladesh.J. Environ. Sci. & Natural Resources, 9(2): 79-84 2016

Sign in / Sign up

Export Citation Format

Share Document