Economic Impact of Drip Irrigation Regimes on Sorghum Production in Semi-arid Areas of Tanzania

2016 ◽  
pp. 227-240 ◽  
Author(s):  
A. J. Mahinda ◽  
C. K. K. Gachene ◽  
M. Kilasara
Keyword(s):  
Economic Impact ◽  
Drip Irrigation ◽  
Arid Areas ◽  
Irrigation Regimes ◽  
Sorghum Production ◽  
Semi Arid

Farmers’ perceptions of sorghum production constraints and Striga control practices in semi-arid areas of Tanzania

2016 ◽  
Vol 63 (2) ◽  
pp. 146-156 ◽  
Author(s):  
Emmanuel Mrema ◽  
Hussein Shimelis ◽  
Mark Laing ◽  
Tulole Bucheyeki
Keyword(s):  
Arid Areas ◽  
Production Constraints ◽  
Sorghum Production ◽  
Semi Arid

scholarly journals Assessing Growth and Water Productivity for Drip-Irrigated Maize under High Plant Density in Arid to Semi-Humid Climates

Agriculture ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 97
Author(s):  
Feng Wang ◽  
Jun Xue ◽  
Ruizhi Xie ◽  
Bo Ming ◽  
Keru Wang ◽  
...  
Keyword(s):  
Drip Irrigation ◽  
Plant Density ◽  
Water Productivity ◽  
Growth And Yield ◽  
Planting Density ◽  
Arid Areas ◽  
High Plant Density ◽  
Aquacrop Model ◽  
Semi Arid ◽  
Mulched Drip Irrigation

Determining the water productivity of maize is of great significance for ensuring food security and coping with climate change. In 2018 and 2019, we conducted field trials in arid areas (Changji), semi-arid areas (Qitai) and semi-humid areas (Xinyuan). The hybrid XY335 was selected for the experiment, the planting density was 12.0 × 104 plants ha−1, and five irrigation amounts were set. The results showed that yield, biomass, and transpiration varied substantially and significantly between experimental sites, irrigation and years. Likewise, water use efficiency (WUE) for both biomass (WUEB) and yield (WUEY) were affected by these factors, including a significant interaction. Normalized water productivity (WP*) of maize increased significantly with an increase in irrigation. The WP* for film mulched drip irrigation maize was 37.81 g m−2 d−1; it was varied significantly between sites and irrigation or their interaction. We conclude that WP* differs from the conventional parameter for water productivity but is a useful parameter for assessing the attainable rate of film-mulched drip irrigation maize growth and yield in arid areas, semi-arid areas and semi-humid areas. The parametric AquaCrop model was not accurate in simulating soil water under film mulching. However, it was suitable for the prediction of canopy coverage (CC) for most irrigation treatments.

The reclamation of a desert by the combination of ancient and modern water systems

1981 ◽  
Vol 10 (8) ◽  
pp. 393-396 ◽  
Author(s):  
A Issar
Keyword(s):  
Brackish Water ◽  
Drip Irrigation ◽  
Water Systems ◽  
Negev Desert ◽  
Arid Areas ◽  
Run Off ◽  
Semi Arid

A well-developed system of harvesting the scanty rainfall of the Negev desert in run-off channels enabled farmers 1500 years ago to grow crops of grain and fruit, and produce oil and wine. Restoration of some of these early systems has shown that the principles hold good today and may be applicable in arid and semi-arid areas of other countries, particularly if they are used in combination with modern techniques such as drip irrigation and the use of brackish water.

The effects of different drip irrigation regimes on watermelon [Citrullus lanatus (Thunb.)] yield and yield components under semi-arid climatic conditions

2004 ◽  
Vol 55 (11) ◽  
pp. 1149 ◽  
Author(s):  
Mehmet Şimşek ◽  
Murat Kaçıra ◽  
Tahsin Tonkaz
Keyword(s):  
Irrigation Water ◽  
Drip Irrigation ◽  
Yield Components ◽  
Citrullus Lanatus ◽  
Maximum Yield ◽  
Yield Response ◽  
Irrigation Frequency ◽  
Irrigation Regimes ◽  
Yield And Yield Components ◽  
Semi Arid

This study was conducted to investigate the effects of drip irrigation on yield and yield components of watermelon [Citrullus lanatus (Thunb.) Crimson Tide F1] under semiarid conditions in the Southeastern Anatolian Project Region, Harran Plain, Şanlıurfa, Turkey, during 2002 and 2003. Using a 4-day irrigation period, 4 different irrigation regimes were applied as ratios of irrigation water/cumulative pan evaporation (IW/CPE): 1.25 (I125), 1.00 (I100), 0.75 (I75), and 0.50 (I50). Seasonal crop evapotranspiration (ETc) rates were 720, 677, 554, and 449 mm in the first year and 677, 617, 519, and 417 mm in the second year for irrigation treatments I125, I100, I75, and I50, respectively. Amounts of irrigation water applied to the 4 respective treatments were 764, 642, 520, and 398 mm in 2002 and 709, 591, 473, and 355 mm in 2003. Maximum yield was obtained from I125, with 84.1 t/ha in 2002 and 88.6 t/ha in 2003. Yield was reduced significantly as the irrigation water was reduced. The values of water use efficiency ranged from 9.6 to 11.7 kg/m3 in 2002 and 10.8 to 13.1 kg/m3 in 2003. The unstressed I125 treatment produced 10.1 kg marketable watermelons/m3 irrigation in 2002, and 11.3 kg/m3 in 2003. By comparison, the least irrigated (I50) treatment produced 12.4 kg/m3 in 2002, and 14.9 kg/m3 in 2003. A yield response factor (ky) value of 1.15 was determined based on averages of 2 years, and watermelon was found to be sensitive to water stress. This result showed that yield loss (1 – Ya/Ym) is more important than evapotranspiration deficit (1 – ETa/ETm). The study demonstrates that 1.25 IW/CPE water applications by a drip system in a 4-day irrigation frequency might be optimal for watermelon grown in semi-arid regions similar to those in which the work was conducted.

Impact of Implementation of Large-Scale Drip Irrigation in Arid and Semi-arid Areas: Case Study of Manas River Valley

2013 ◽  
Vol 44 (13) ◽  
pp. 2064-2075 ◽  
Author(s):  
Q. Q. Zhang ◽  
H. L. Xu ◽  
Z. L. Fan ◽  
M. Ye ◽  
P. J. Yu ◽  
...  
Keyword(s):  
Drip Irrigation ◽  
Large Scale ◽  
River Valley ◽  
Arid Areas ◽  
Semi Arid

Farmers’ perception towards the challenges and determinant factors in the adoption of drip irrigation in the semi-arid areas of Tigray, Ethiopia

2017 ◽  
Vol 4 (3) ◽  
pp. 527-537 ◽  
Author(s):  
Gebremedhin Gebremeskel ◽  
T. G. Gebremicael ◽  
Hadush Hagos ◽  
Teferi Gebremedhin ◽  
Mulubrehan Kifle
Keyword(s):  
Drip Irrigation ◽  
Arid Areas ◽  
Determinant Factors ◽  
Semi Arid

scholarly journals Influence of Drip Irrigation Regimes and Lateral Spacing on Cumin Productivity

2016 ◽  
Vol 11 (1) ◽  
pp. 333-337 ◽  
Author(s):  
Arvind Kunapara ◽  
R Subbaiah ◽  
Girish Prajapati ◽  
Jaydip Makwana
Keyword(s):  
Seed Yield ◽  
Drip Irrigation ◽  
Dry Matter ◽  
Arid Regions ◽  
Irrigation Regimes ◽  
Use Efficiency ◽  
Optimum Water ◽  
Semi Arid ◽  
Plot Design

Cumin is one of the important spice crops grown in arid and semi arid regions of India and is being adopted to cure some of the dreaded diseases. Determination of optimum water requirement which is function of soil crop and atmosphere is needed for achieving more profit and higher productivity per unit of water. Keeping in view, a field experiment was undertaken to access the conjugate impact of three irrigation regimes (0.6IW/ETc, 0.8IW/ETc and1.0IW/ETc) and three lateral spacing (0.60m, 0.70m and 0.80m) on productivity of cumin. Split plot design with three treatment replications was adopted. Drip irrigation with 0.8 IW/ETc resulted higher seed yield, plant height and dry matter of 1344.17 kg/ha, 36.42 cm and 2365 kg/ha respectively at 0.8 IW/ETc with lateral spacing 0.6 m as compared to other treatments. Highest water use efficiency (5.58 kg/ha.mm) was observed at 0.6 IW/ETc with 0.60 m lateral spacing. Highest B:C ratio (2.27) observed at 0.8 IW/ETcwith lateral spacing 0.6m as compared to other treatments.

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