scholarly journals Greenhouse Gas Emissions from Cotton Field under Different Irrigation Methods and Fertilization Regimes in Arid Northwestern China

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Jie Wu ◽  
Wei Guo ◽  
Jinfei Feng ◽  
Lanhai Li ◽  
Haishui Yang ◽  
...  
Keyword(s):  
Greenhouse Gas ◽  
Drip Irrigation ◽  
Ghg Emissions ◽  
Northwestern China ◽  
Cotton Field ◽  
Cotton Yield ◽  
Cotton Production ◽  
Production Region ◽  
Irrigation Methods ◽  
Arid Northwestern China

Drip irrigation is broadly extended in order to save water in the arid cotton production region of China. Biochar is thought to be a useful soil amendment to reduce greenhouse gas (GHG) emissions. Here, a field study was conducted to compare the emissions of nitrous oxide (N2O) and methane (CH4) under different irrigation methods (drip irrigation (D) and furrow irrigation (F)) and fertilization regimes (conventional fertilization (C) and conventional fertilization + biochar (B)) during the cotton growth season. The accumulated N2O emissions were significantly lower with FB, DC, and DB than with FC by 28.8%, 36.1%, and 37.6%, while accumulated CH4uptake was 264.5%, 226.7%, and 154.2% higher with DC, DB, and FC than that with FB, respectively. Irrigation methods showed a significant effect on total global warming potential (GWP) and yield-scaled GWP (P<0.01). DC and DB showed higher cotton yield, water use efficiency (WUE), and lower yield-scaled GWP, as compared with FC and FB. This suggests that in northwestern China mulched-drip irrigation should be a better approach to increase cotton yield with depressed GHG. In addition, biochar addition increased CH4emissions while it decreasedN2Oemissions.

scholarly journals Irrigation-Water Management and Productivity of Cotton: A Review

2021 ◽  
Vol 13 (18) ◽  
pp. 10070
Author(s):  
Komlan Koudahe ◽  
Aleksey Y. Sheshukov ◽  
Jonathan Aguilar ◽  
Koffi Djaman
Keyword(s):  
Water Management ◽  
Water Use ◽  
Irrigation Water ◽  
Yield Components ◽  
Cotton Yield ◽  
Cotton Production ◽  
Irrigation Water Management ◽  
Irrigation Methods ◽  
The World ◽  
Use Efficiency

A decrease in water resources, as well as changing environmental conditions, calls for efficient irrigation-water management in cotton-production systems. Cotton (Gossypium sp.) is an important cash crop in many countries, and it is used more than any other fiber in the world. With water shortages occurring more frequently nowadays, researchers have developed many approaches for irrigation-water management to optimize yield and water-use efficiency. This review covers different irrigation methods and their effects on cotton yield. The review first considers the cotton crop coefficient (Kc) and shows that the FAO-56 values are not appropriate for all regions, hence local Kc values need to be determined. Second, cotton water use and evapotranspiration are reviewed. Cotton is sensitive to limited water, especially during the flowering stage, and irrigation scheduling should match the crop evapotranspiration. Water use depends upon location, climatic conditions, and irrigation methods and regimes. Third, cotton water-use efficiency is reviewed, and it varies widely depending upon location, irrigation method, and cotton variety. Fourth, the effect of different irrigation methods on cotton yield and yield components is reviewed. Although yields and physiological measurements, such as photosynthetic rate, usually decrease with water stress for most crops, cotton has proven to be drought resistant and deficit irrigation can serve as an effective management practice. Fifth, the effect of plant density on cotton yield and yield components is reviewed. Yield is decreased at high and low plant populations, and an optimum population must be determined for each location. Finally, the timing of irrigation termination (IT) is reviewed. Early IT can conserve water but may not result in maximum yields, while late IT can induce yield losses due to increased damage from pests. Extra water applied with late IT may adversely affect the yield and its quality and eventually compromise the profitability of the cotton production system. The optimum time for IT needs to be determined for each geographic location. The review compiles water-management studies dealing with cotton production in different parts of the world, and it provides information for sustainable cotton production.

scholarly journals Energy Analysis and Greenhouse Gas Emission from Strawberry Production under Two Irrigation Systems

2018 ◽  
Vol 17 (1) ◽  
pp. 1-10
Author(s):  
Hossein KAZEMI ◽  
Sanaz ZARDARI
Keyword(s):  
Total Energy ◽  
Greenhouse Gas ◽  
Nitrogen Fertilizer ◽  
Drip Irrigation ◽  
Greenhouse Gas Emission ◽  
Irrigation System ◽  
Ghg Emissions ◽  
Energy Output ◽  
Total Energy Consumption ◽  
Irrigation Systems

The aims of this study were to estimate the energy indices, greenhouse gas (GHG) emission and compare the energy balance of open field strawberry production under furrow and drip irrigation systems in Kurdistan province, west of Iran. Data used in this study were obtained from 24 strawberry growers using a face to face questionnaire method in 2014. In order to convert inputs and output into energy equivalents, energy equivalent coefficients were applied. The results indicate that total energy consumption in strawberry production was 16,206.83 and 16,525.69 MJ.ha-1, whereas the total energy output was 38,950.00 and 52,385.70 MJ.ha-1 in furrow and drip irrigation systems, respectively. Energy use efficiency and net energy in the drip irrigation system were higher than the furrow irrigation system. Nitrogen fertilizer was the major energy consumer in both of the irrigation systems. From an environmental viewpoint, the total GHG emissions were 764.28 and 1,284.19 kg CO2 equivalent ha-1 in the furrow and drip systems, respectively. In the furrow system, the nitrogen fertilizer and diesel fuel had the highest share in GHG emissions, with 51.76 and 20.72 percent of the total, respectively, but in the drip system, machinery had the highest share in GHG emissions, with 53.11 percent of the total.

Effects of drip irrigation regimes on potato tuber yield and quality under plastic mulch in arid Northwestern China

2011 ◽  
Vol 122 (1) ◽  
pp. 78-84 ◽  
Author(s):  
Feng-Xin Wang ◽  
Xiu-Xia Wu ◽  
Clinton C. Shock ◽  
Li-Yun Chu ◽  
Xiao-Xiao Gu ◽  
...  
Keyword(s):  
Potato Tuber ◽  
Drip Irrigation ◽  
Tuber Yield ◽  
Northwestern China ◽  
Plastic Mulch ◽  
Yield And Quality ◽  
Irrigation Regimes ◽  
Arid Northwestern China

Carbon Dioxide Fluxes and Concentrations in a Cotton Field in Northwestern China: Effects of Plastic Mulching and Drip Irrigation

Pedosphere ◽  
2011 ◽  
Vol 21 (2) ◽  
pp. 178-185 ◽  
Author(s):  
Zhi-Guo LI ◽  
Run-Hua ZHANG ◽  
Xiu-Jun WANG ◽  
Jie-Ping WANG ◽  
Cui-Ping ZHANG ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Drip Irrigation ◽  
Northwestern China ◽  
Cotton Field ◽  
Carbon Dioxide Fluxes ◽  
Plastic Mulching
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