Research Article
Effects of Deficit Irrigation on Water Use Efficiency and Common Bean (Phaseolus vulgaris L.) Yields Under Furrow Irrigation System at Malkasa, Central Rift Valley of Ethiopia
Zalalem Tamiru*,
Tashome Seyoum,
Tilahun Hordofa
Issue:
Volume 12, Issue 3, June 2023
Pages:
38-45
Received:
25 October 2023
Accepted:
10 November 2023
Published:
14 December 2023
DOI:
10.11648/j.wros.20231203.11
Downloads:
Views:
Abstract: Expansion of irrigated area combined with efficient management of water will enhance the attainment offood security and poverty alleviation goals of the country. Irrigation agriculture significantly contributes to food security, producing 40% of food and 70% of global freshwater withdrawals. This study investigates the effect of furrow irrigation on the yield of common beans in Ethiopia's central Rift Valley. The experiment was conducted on loam soil with three furrow irrigation methods: alternate, fixed, and conventional, and three deficit irrigation levels of 100, 85, 70, and 55%. The analysis of variance showed that the grain yield of common beans was significantly affected by irrigation levels and furrow irrigation methods. The highest grain yields, plant height, and above-ground biomass were obtained with 100% ETc under conventional furrow irrigation. The maximum water use efficiency obtained from alternative furrow 70% ETc (1.4kg/m3) followed by alternative furrow 55% ETc (1.38kg/m3). where as, the minimum was obtained from conventional 100% ETc. An irrigation application of 70% ETc under alternate irrigation could be considered optimal irrigation management in a water-scarce area.
Abstract: Expansion of irrigated area combined with efficient management of water will enhance the attainment offood security and poverty alleviation goals of the country. Irrigation agriculture significantly contributes to food security, producing 40% of food and 70% of global freshwater withdrawals. This study investigates the effect of furrow irrigation o...
Show More
Research Article
On Farm Evaluation of Irrigation Water Levels with Mulch on Yield and Water Productivity of Hot Pepper (Capsicum annum L.) at Odo Shakiso District, Southern Ethiopia
Tesfaye Gragn*,
Obsa Wolde
Issue:
Volume 12, Issue 3, June 2023
Pages:
46-54
Received:
14 November 2023
Accepted:
13 December 2023
Published:
26 December 2023
Abstract: Ineffective use of water consumption usually causes problems such as increased land salinity, waterlogging, land salinization, waterlogging, reduced crop productivity and water loss. This experiment was conducted to study the effects of irrigation levels and mulching materials on yield, yield components, and water productivity of hot pepper in Odo Shakiso district, Southern Oromia region during 2021-2022. The experiment was designed as a combination of nine treatments and was repeated three times under a completely randomized block design (RCBD). Treatments included three levels of irrigation application (100% ETc, 85% ETc, and 70%) and three types of mulch (no mulch, straw mulch, and white plastic mulch). The combination effect of irrigation levels with mulch type under convectional furrow irrigation has shown a highly significant (p<0.01) influence on plant height, number of pods per plant, marketable yield, total yield, and water productivity of green hot pepper. The highest marketable and the highest total yield of green pepper were obtained under 100% ETc and white plastic mulch treatment with 15.46 tons of green pepper per hectare and 15.54 tons of green pepper per hectare respectively. However, statistically, there is no significant difference among treatments of 100% ETc without mulch, 100% ETc with white plastic mulch, 100% ETc with straw mulch, 85% with white plastic mulch, and 85% ETc with straw mulch. Moreover, the maximum water productivity (4.74kg/m3) was observed at irrigation application of 70% ETc with white plastic mulch which was statistically non-significant with irrigation application of 85% ETc with white plastic mulch and 85% ETc with straw mulch with the value of (4.61kg/m3) and (4.46kg/m3) respectively. Based on the partial budget analysis, the highest net benefit value of 839,438 birr/ha with marginal rate of return (1080) was obtained from irrigation water application of 85% ETc under straw mulch. This result revealed that applying irrigation of 85% ETc with straw mulch is economically feasible for green hot pepper production in the Odo Shakiso area of the Guji zone. In conclusion, the present study points out that irrigation application of 85% ETc with straw mulch is recommended for the Odo Shakiso district and other similar agro ecologies. However, as the trial was conducted in one location, conducting similar research over locations would be appropriate to get conclusive results for the best recommendation.
Abstract: Ineffective use of water consumption usually causes problems such as increased land salinity, waterlogging, land salinization, waterlogging, reduced crop productivity and water loss. This experiment was conducted to study the effects of irrigation levels and mulching materials on yield, yield components, and water productivity of hot pepper in Odo ...
Show More
