Impact of Deficit Irrigation on Soil Salinity and Cucumber Yield under Greenhouse Condition in an Arid Environment (original) (raw)
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Nigerian Journal of Technology
A study was carried out at the research farm of the Federal College of Forestry Mechanization, Afaka, Kaduna, Nigeria, to determine the effect of irrigation depths and intervals on the yield, crop water use and water productivity of drip-irrigated cucumber (market-more variety) in two irrigation seasons (2016/17 and 2017/18). Irrigation was scheduled using the reference evaporation data obtained from pan evaporation measurements taken within the experimental periods. The results showed a significant difference in both seasonal crop evapotranspiration and yield at 5% level of significance in both seasons. The highest yields (21 t/ha and 20.3 t/ha) were obtained from the treatments with 100 ETo, irrigated daily (T1), while the lowest (15.5 t/ha and 16.5 t/ha) were obtained from the treatments with 60% ETo, irrigated every four days (T9). The highest water productivities were obtained from the treatments with 60% ETo, irrigated daily (T7), while the lowest were obtained from the treatm...
The aim of this paper was to evaluate the effects of surface and subsurface drip irrigation buried at 0, 15 and 30 cm depths respectively (T0, T1 and T2) on water's dynamic in soil and irrigation water use efficiency to produce cucumber (Cucumis sativus L.) in Mediterranean climate. Field study was conducted at the Higher Institute of Agronomy of Chott Meriem, Tunisia from April to June 2011. The results showed that soil water's stock under T1 was more important and uniform compared to T0 and T2. In contrast, irrigation water use efficiency was higher in T2. Indeed, it increased about 20 and 13 % respectively when compared to T1 and T0. The results of the present study showed that SDI allows uniform soil moisture, minimize the evaporative loss and delivery water directly to the plant root zone and consequently increases use efficiency.
International Journal of Agriculture, Environment and Bioresearch
In Nigeria, most farmers depend on rain fed crops while most of the vegetable crops that are needed all year round are raised through irrigation systems. Such crops as onions, pepper, carrots, cabbage, etc are said to be suitably raised by irrigation only in northern part of Nigeria having semi humid climate, hence don’t perform well in the middle belt region with humid climates like Nasarawa state. An irrigational experiment was carried out to compare the biosphysical performance of a vegetable crop (cucumber-cucumissativas) using surface and drip irrigation, under Nasarawa South humid climate. Cucumber was planted in a rain fed plot and studied during raining season which served as control. Agronomic parametres of leaves (major and minor diameters), height and fruits produced were recorded and compared with the results from surface and drip irrigated plot during dry season. The drip irrigated crops produced 217 leaves followed by rain fed plot with 210 leaves and surface irrigated...
Response of Cucumbers to Different Irrigation Regimes Applied Through Drip-Irrigation System
Journal of Animal and Plant Sciences, 2015
In the future, irrigated crop production will be affected significantly with water scarcity . There is a pressing need to improve the irrigation water efficiency under insufficient water supply conditions. Therefore, the effects of different irrigation quantities on the fruit yield, yield components (fruit length, diameter, weight and number), irrigation water use efficiency (IWUE) andfruit quality (minerals,phenolic content and antioxidant activity) ofdrip-irrigated cucumberwere evaluated in open field conditions. Different irrigation levels were adjusted usingthree different ratios(T1: 1.0, T2: 0.85 and T3: 0.70)of cumulative evaporation from a Class A pan.The maximumtotal fruit yield, early fruit yield, fruit length, fruit number per plant were determined fromT1 irrigation level(64.13 Mg ha -1 , 2.76 Mg ha -1 , 15.95 cm and 19.94), respectively.Significant positive linear relations were obtained between total fruit yield , fruit length and fruit number with irrigation quantity.Th...
International Journal of Agriculture and Biology
Deficit irrigation (DI) is an optimization strategy that allows water stress to some extent during certain cropping stages or for the whole season without a significant reduction in yield. A greenhouse experiment was conducted during the growing seasons of 2009/2010 and 2010/2011 to study the effect of water quality and DI on growth, yield and water use efficiency (WUE) of tomato at different growth stages. Two different water qualities (saline and non-saline water with electrical conductivities (EC) 3.6 and 0.9 dSm-1, respectively) nine DI treatments and three irrigation treatments (100, 75 and 50% of Etc) were investigated in the experiment. Furthermore, DI at 75% and 50% of ETc during vegetative, reproductive, and fruiting stage were adopted. The result indicated that in general the irrigation with saline water decreased tomato fruits yield and WUE. Moreover, the negative effect of DI was more obvious when coupled with salt stress. Irrigation with saline water resulted in 22% and...
4 Management of Irrigation Water Salinity in Greenhouse
A greenhouse experiment was conducted during the growing seasons (2008/2009 and 2009/2010) to investigate the effects of water quality and soil amendments, irrigation methods and rates on tomato (Solanum lycopersicon L. cv. Red Gold) yield and water use efficiency (WUE). Irrigation management treatments were fresh (0.86 dS m-1) and saline waters (3.6 dS m-1), surface and subsurface irrigation methods, 2, 4, and 6 L h-1 irrigation rates applied at the same irrigation duration and interval, and clay deposit, organic matter, and control amendment treatments. The results showed that differences among treatments were highly significant (P< 0.05) for tomato yield and WUE. The interactions between water quality and the other three factors were highly significant (P< 0.05). Applying fresh water and clay deposit amendments in sandy soil under subsurface drip irrigation at 2 L h-1 flow rate irrigation, water saving occurred due to improving soil water distribution in root zone. On the o...