Evaluating the Effect of Irrigation on Paddy Rice Yield by Applying the AquaCrop Model in Northern Ghana

2017 ◽  
pp. 93-116
Author(s):  
Shaibu Abdul-Ganiyu ◽  
Nicholas Kyei-Baffour ◽  
Wilson Agyei Agyare ◽  
Wilson Dogbe
Keyword(s):  
Rice Yield ◽  
Paddy Rice ◽  
Northern Ghana ◽  
Aquacrop Model

Potential impacts on climate change on paddy rice yield in mountainous highland terrains

2014 ◽  
Vol 17 (3) ◽  
pp. 117-126 ◽  
Author(s):  
Jonghan Ko ◽  
Han-Yong Kim ◽  
Seungtaek Jeong ◽  
Joong-Bae An ◽  
Gwangyoung Choi ◽  
...  
Keyword(s):  
Climate Change ◽  
Rice Yield ◽  
Paddy Rice

scholarly journals Comparative Study of Rice Yield Production for Conventional Paddy Rice and Systems of Rice Intensification

2020 ◽  
Vol 6 (2) ◽  
pp. 70
Author(s):  
Gideon Too ◽  
Julius Kipkemboi Kollongei ◽  
Japheth Ogalo Onyando ◽  
Emmanuel Chessum Kipkorir
Keyword(s):  
Comparative Study ◽  
Rice Yield ◽  
Paddy Rice ◽  
Yield Production ◽  
Rice Intensification

scholarly journals Different effects of water-saving management on canopy microclimate, spikelet sterility, and rice yield in the dry and wet seasons of the sub-humid tropics in northern Ghana

2021 ◽  
Vol 260 ◽  
pp. 107978 ◽  
Author(s):  
Yasuhiro Tsujimoto ◽  
Abraham Fuseini ◽  
Baba I.Y. Inusah ◽  
Wilson Dogbe ◽  
Mayumi Yoshimoto ◽  
...  
Keyword(s):  
Rice Yield ◽  
Humid Tropics ◽  
Water Saving ◽  
Northern Ghana ◽  
Spikelet Sterility

The uptake and use of nitrogen by paddy rice in fallow, cereal, and legume cropping systems

1999 ◽  
Vol 50 (6) ◽  
pp. 945 ◽  
Author(s):  
S. E. Ockerby ◽  
A. L. Garside ◽  
S. W. Adkins
Keyword(s):  
Rice Yield ◽  
N Uptake ◽  
Dry Season ◽  
Paddy Rice ◽  
Rice Crop ◽  
Grain Legume ◽  
Rice Grain ◽  
Wet Season ◽  
Physiological Efficiency ◽  
Legume Crops

In a previous paper, we reported that prior crops either increased or decreased the yield of paddy rice (Oryza sativa L.) and altered its response to fertiliser N. We considered that rice yield responses to prior crop might have reflected the uptake of crop residue N and the efficiency of its use to produce grain. Experiments consisted of dry-season grain or legume crops, or fallow, followed by wet-season rice (cv. Lemont); and wet-season grain or legume crops, or fallow, followed by dry-season rice. Urea at one-third of the rate required for optimum rice yield was applied at 3 stages of rice crop growth: sowing, permanent flood, and/or panicle initiation. Soil N supplied 4.1 to 6.5 g N/m2 to the rice crop, depending on the season. Rice also recovered 0 to 0.25 of the N in the residue of a prior maize crop and 0.23 to 0.57 of the N in grain legume residues or a legume green manure crop; the fraction was greater if fertiliser N was not applied. Increased N uptake was the major contributor to heavier yield. The relationship between grain yield and crop N content was mostly linear, and thus physiological efficiency of N use for rice grain production was essentially constant across the range of environments provided by fertiliser N and cropping system treatments in this study. In experiments where fertiliser N was applied, there were small effects of prior cereal and legume cropping treatments on physiological efficiency. In contrast, without fertiliser N application, physiological efficiency was increased by prior cereal and legume crops, which likely resulted from a greater congruence between the N demand of the rice crop, and the N supply from the soil and incorporated residue, when compared with a fallow treatment.

Modelling paddy rice yield using MODIS data

2014 ◽  
Vol 184 ◽  
pp. 107-116 ◽  
Author(s):  
Dailiang Peng ◽  
Jingfeng Huang ◽  
Cunjun Li ◽  
Liangyun Liu ◽  
Wenjiang Huang ◽  
...  
Keyword(s):  
Rice Yield ◽  
Paddy Rice ◽  
Modis Data

scholarly journals Mitigation Potential and Yield-Scaled Global Warming Potential of Early-Season Drainage from a Rice Paddy in Tamil Nadu, India

Agronomy ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 202 ◽  
Author(s):  
Aung Zaw Oo ◽  
Shigeto Sudo ◽  
Kazuyuki Inubushi ◽  
Umamageswari Chellappan ◽  
Akinori Yamamoto ◽  
...  
Keyword(s):  
Global Warming ◽  
Global Warming Potential ◽  
Tamil Nadu ◽  
Rice Yield ◽  
Ghg Emissions ◽  
Paddy Rice ◽  
Wet Season ◽  
Wetting And Drying ◽  
Early Season ◽  
Ch4 Emissions

Water-intensive systems of rice cultivation are facing major challenges to increase rice grain yield under conditions of water scarcity while also reducing greenhouse gas (GHG) emissions. The adoption of effective irrigation strategies in the paddy rice system is one of the most promising options for mitigating GHG emissions while maintaining high crop yields. To evaluate the effect of different alternate wetting and drying (AWD) irrigation strategies on GHG emissions from paddy rice in dry and wet seasons, a field experiment was conducted at the Tamil Nadu Rice Research Institute (TRRI), Aduthurai, Tamil Nadu, India. Four irrigation treatments were included: One-AWD (one early drying period), Two-AWD (two early drying periods), Full-AWD (wetting and drying cycles throughout the rice season), and CF (continuous flooding). Different rice varieties were also tested in the experiment. In this study, we emphasized one factor (irrigation effect) that affects the dependent variable. The results show that early AWD treatments reduced methane (CH4) emissions by 35.7 to 51.5% in dry season and 18.5 to 20.1% in wet season, while full-AWD practice reduced CH4 emissions by 52.8 to 61.4% compared with CF. Full-AWD in dry season not only significantly reduced CH4 emission during that season, it also resulted in the decline of the early season emission in the succeeding wet season. Global warming potential (GWP) and yield-scaled GWP were reduced by early or full season AWD in both rice seasons. The GWP value from nitrous oxide (N2O) was relatively low compared to that from CH4 in both rice seasons. Rice yield was not affected by irrigation treatments although varietal differences in grain and straw yields were observed in both rice seasons. This study demonstrated that early season water managements are also effective in reducing CH4 and total GHG emissions without affecting rice yield.

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