scholarly journals Input-use Efficiency of Irrigation Farmers in Southwest Nigeria

2020 ◽  
pp. 1-12
Author(s):  
F. M. Oluwatusin ◽  
A. O. Kolawole ◽  
O. A. Aturamu ◽  
K. A. Abdu-Raheem
Keyword(s):  
Water Use Efficiency ◽  
Technical Efficiency ◽  
Water Use ◽  
Sprinkler Irrigation ◽  
Household Size ◽  
Descriptive Statistics ◽  
Tobit Regression ◽  
Input Use ◽  
Southwest Nigeria ◽  
Use Efficiency

This study estimated the technical and water-use efficiency of irrigation farmers in Southwest Nigeria. A multistage sampling procedure was employed to interview one hundred and eighty-five irrigation farmers. Descriptive statistics, Data Envelopment Analysis Program (DEAP) and Tobit regression model were used to describe and analyze the determinants of inefficiency among irrigation farmers. The result of the descriptive statistics showed that there were more male farmers (82.2%) with a mean household size of 3.7. The mean area of irrigated land was 1.29ha. with about 84 percent of farmers cultivating on rented land. The average income from irrigation farming was N 38,650.27 per month. The sprinkler irrigation (Centre Pivot) was used by 85.4% of the farmers. The water fee for farmers was N 10,000 and the average cost of diesel for irrigating their farmland was estimated to be N 34,400 per production. The variation in input use and the output produced is considerably large. The DEAP results showed that on average, the farmers achieved only 79% Constant Return to Scale (CRS) technical efficiency, 85% Variable Return to Scale (VRS) technical efficiency and 22% water use efficiency. The Tobit regression results showed that farmers’ characteristics like age (0.008), household size (0.048), area of land irrigated (0.000), income (0.075) and drip irrigation method (0.041) were significant under CRS, whereas gender, education, experience, labour and sprinkler irrigation method were not significant. Under VRS model, significant variables includes age (0.032), gender (0.003), education (0.080), experience (0.059) and area of land irrigated (0.000), while gender (0.004), household size (0.086), education (0.027), experience (0.045), area of land irrigated (0.000) and labour (0.089) were significant for sub-vector VRS. It appears that farmers have little incentives to use water in an efficient way. In this sense, a public-private partnership could trigger better management of irrigation facilities and efficient water use among farmers.

scholarly journals Effects of Irrigation Techniques on Yield, Quality and Water Use Efficiency of Greenhouse Grown Celery (Apium graveolens L.)

2020 ◽  
Author(s):  
Shenglin Wang ◽  
Chen Luo ◽  
Yue Xie ◽  
Xiaotang Jiang ◽  
Yixin Wang ◽  
...  
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Sprinkler Irrigation ◽  
Furrow Irrigation ◽  
Plastic Film ◽  
Irrigation Amount ◽  
Plastic Film Mulching ◽  
Use Efficiency ◽  
Yield Quality ◽  
Film Mulching

Abstract Background: Traditional irrigation methods in protected vegetable production such as furrow irrigation result in low water use efficiency. New techniques, such as drip irrigation, micro-sprinkling irrigation have been developed for improving water use efficiency. However, these techniques have not been tested in greenhouse celery production. In this study, three different irrigation techniques micro-sprinkler irrigation (MS), furrow irrigation under plastic film mulching (PF) and micro-sprinkler irrigation under the plastic film mulching (MSP) were investigated whether the three techniques can improve the yield, quality and water use efficiency of greenhouse-grown celery, compared to furrow irrigation (FI). Results: The individual plant weight of celery was higher under MS, PF and MSP than under FI in both autumn season crop (AC) and spring season crop (SC), compared to FI. In AC and SC, the economic yield of celery increases under MSP by 54.18% and 49.55%, the economic yield of celery increases under PF by 30.37% and 34.10%. The irrigation amount of MSP was 151.69 and 179.91 m3 667 m-2 in AC and SC, which was 23.13% and 27.27% lower than that of FI. The irrigation amount of PF was 151.69 and 196.78 m3 667 m-2 in AC and SC, which was 23.13% and 20.45% lower than that of FI. PF and MSP reduced the irrigation amount of celery cultivation in greenhouse, and soil evaporation content. Conclusions: In short, MSP and PF promoted the growth and yield of celery in greenhouse with improved quality and water use efficiency.

Grain yield and water use efficiency of maize as influenced by different irrigation regimes through sprinkler irrigation under temperate climate

2016 ◽  
Vol 169 ◽  
pp. 34-43 ◽  
Author(s):  
Branka Kresović ◽  
Angelina Tapanarova ◽  
Zorica Tomić ◽  
Ljubomir Životić ◽  
Dragan Vujović ◽  
...  
Keyword(s):  
Grain Yield ◽  
Water Use Efficiency ◽  
Water Use ◽  
Sprinkler Irrigation ◽  
Temperate Climate ◽  
Irrigation Regimes ◽  
Use Efficiency

scholarly journals Direct or Spillover Effect: The Impact of Pure Technical and Scale Efficiencies of Water Use on Water Scarcity in China

2019 ◽  
Vol 16 (18) ◽  
pp. 3401 ◽  
Author(s):  
Min Li ◽  
Kaisheng Long
Keyword(s):  
Water Use Efficiency ◽  
Technical Efficiency ◽  
Water Use ◽  
Water Scarcity ◽  
Regional Scale ◽  
Spatial Relationship ◽  
Spillover Effects ◽  
Scale Efficiency ◽  
Use Efficiency ◽  
The Impact

The spatial relationship between water use efficiency and water scarcity has been widely discussed, but little attention has been paid to the impact of the pure technical and scale efficiencies of water use on water scarcity. Using input-oriented data envelopment analysis (DEA) and panel spatial Durbin models (SDM), the direct and spillover effects of different water use efficiencies on water scarcity from 2007 to 2016 in China were examined at the regional scale. The results show that the water use pure technical efficiency had significantly negative direct effects on water scarcity; however, the water use scale efficiency did not have a similar effect. The improvement in water use pure technical efficiency in one region could aggravate the water scarcity in neighboring regions through spatial spillover effects, but the same effect was not observed between the water use scale efficiency and water scarcity. Finally, we propose solutions to improve the water use efficiency to reduce the water scarcity.

scholarly journals IRRIGATED MAIZE CROP: GRAIN YIELD IN TWO SOWING SEASONS IN THE MUNICIPALITY OF TERESINA, PIAUÍ

2020 ◽  
Vol 19 ◽  
pp. 12
Author(s):  
MILTON JOSÉ CARDOSO ◽  
HÉLIO WILSON LEMOS CARVALHO ◽  
LEONARDO MELO PEREIRA ROCHA ◽  
LAURO MOREIRA GUIMARÃES ◽  
PAULO EVARISTO GUIMARÃES
Keyword(s):  
Grain Yield ◽  
Water Use Efficiency ◽  
Water Use ◽  
Block Design ◽  
Sprinkler Irrigation ◽  
Maize Crop ◽  
Maize Hybrids ◽  
Randomized Block Design ◽  
Use Efficiency ◽  
Sowing Season

The objective of this work was to evaluate commercial maize hybrids, under conventional sprinkler irrigation, in two sowing seasons (July and August 2017), in the municipality of Teresina, Piauí. A randomized block design was used, with two replications and 39 treatments (commercial maize hybrids). The characteristics evaluated were grain yield, water use efficiency, number of ears and number of grains per area. For the experiment with sowing done in July 2017, the average grain yield was 9.82 Mg ha-1 and the water use efficiency was 1.9 kg m-3, which are, respectively, 4.7 % and 15.8 % higher in relation to the experiment with sowing done in August 2017. Regardless of the sowing season, grain yields over 10.0 Mg ha-1 of three hybrids (LG 6418, CD 3880 PW and 2A 401 PW) stand out. The yield components, number of kernels per ear and grain mass per ear, show high values of correlation (over 0.80) with grain yield.

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