Spring wheat performance and water use efficiency on permanent raised beds in arid northwest China

Soil Research ◽  
2008 ◽  
Vol 46 (8) ◽  
pp. 659 ◽  
Author(s):  
Jin He ◽  
Hongwen Li ◽  
A. D. McHugh ◽  
Zhongmin Ma ◽  
Xinhui Cao ◽  
...  
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Spring Wheat ◽  
Irrigation Water ◽  
Soil Layer ◽  
Growth Yield ◽  
Gansu Province ◽  
North West ◽  
Irrigation Water Use ◽  
Use Efficiency

Permanent raised beds have been proposed as a more productive and water-efficient alternative to the conventional system of flat, flood-irrigated bays for planting narrow-spaced crops in arid north-west China. Data from a field experiment (2005–2007) conducted in the Hexi Corridor at Zhangye, Gansu Province, China, were used to compared the effects of traditional tillage (TT), zero tillage (ZT), and permanent raised beds (PRB) on crop growth, yield, and water use in a spring wheat monoculture. The results show that PRB significantly (P < 0.05) increased soil water content to 0.30 m depth by 7.2–10.7% and soil temperature to 0.05 m depth by 0.2–0.9°C during the wheat-growing period relative to TT and ZT treatments. Bulk density in 0–0.10 m soil layer under PRB was also 5.8% less than for flat planting treatments. Mean wheat yields over 3 years on PRB plots were slightly greater and furrow irrigation in permanent beds was particularly effective in increasing irrigation water use efficiency (~18%), compared with TT and ZT treatments. This increase in water use efficiency is of considerable importance for these arid areas where irrigation water resources are scarce.

Effects of irrigating forage turnips Brassica rapa var. rapa cv. Barkant during different periods of vegetative growth 3. Irrigation water use efficiency, evapotranspiration and effective use of water

2016 ◽  
Vol 67 (8) ◽  
pp. 864 ◽  
Author(s):  
B. A. Rowe ◽  
J. E. Neilsen
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Brassica Rapa ◽  
Irrigation Water ◽  
Vegetative Growth ◽  
Irrigation Water Use Efficiency ◽  
North West ◽  
Irrigation Water Use ◽  
Use Efficiency ◽  
Effective Use

Irrigation was applied at different rates and frequencies during five consecutive periods of vegetative growth of the forage turnip Brassica rapa var. rapa cv. Barkant, grown in the field in north-west Tasmania, Australia, during the spring and summer of 1999–2000 (Season 1) and 2000–01 (Season 2). Irrigation applied before root expansion did not increase the dry matter (DM) of turnips (leaf plus root) in either season. At the following four harvests in each season, DM increased linearly in proportion to the cumulative amount of irrigation applied before the harvests. Irrigation water use efficiency, as measured by the slopes of the linear regressions, ranged from 5.7 to 17.2 kg DM ha–1 mm–1 in Season 1 and from 19.2 to 26.0 kg DM ha–1 mm–1 in Season 2. The effective use of water (EUW; yield increase/evapotranspiration within a period) was calculated for each of the five periods in Season 2 to identify the vegetative growth periods when the response ( kg DM ha–1 mm–1) was greatest and limited irrigation water could be applied most effectively. EUW of irrigated turnip increased from 16.8 kg DM ha–1 mm–1 at the onset of root expansion to 53.5 kg DM ha–1 mm–1 when root growth rate was a maximum, but declined thereafter. Scarce irrigation should be applied between the onset of root expansion and approximately 8 weeks later, when the response to irrigation ( kg DM ha–1 mm–1) was greatest.

scholarly journals Impact of Conservation Agriculture on Growth, Yield and Quality of Banana (Musa spp.) Cv. Grand Naine

2019 ◽  
pp. 1-6 ◽  
Author(s):  
Suraj Prakash ◽  
Radhey Shyam ◽  
Janardan Prasad
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Fruit Quality ◽  
Irrigation Water ◽  
Block Design ◽  
Growth Yield ◽  
Irrigation Water Use Efficiency ◽  
Irrigation Water Use ◽  
Use Efficiency ◽  
Conventional Irrigation

A field experiment was carried out during 2017-2019 in the Seemanchal area  of Bihar, India to study the effect of conventional  irrigation and conservation  on growth, yield, nutrient uptake, fruit quality and irrigation water use efficiency of banana. The treatments consisted of two levels of irrigation (recommended irrigation and 75% of recommended irrigation) and three levels of fertilizer (50, 75 and 100% of recommended NPK fertilizers) including surface irrigation and conventional soil fertilization was laid out in a Split Plot Block Design. The results showed that improved growth, yield, fruit quality and irrigation water use efficiency were obtained under conservation compared to surface or conventional irrigation. The increasing levels of conservation practices consistently and significantly increased all these characteristics. However, conventional irrigation at 75% of recommended irrigation at 75% RDF produced maximum growth, yield and fruit quality attributes and higher irrigation water use efficiency.

scholarly journals Effect of Deficit Irrigation and Reduced N Fertilization on Plant Growth, Root Morphology and Water Use Efficiency of Tomato Grown in Soilless Culture

Agronomy ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 228
Author(s):  
Ikram Ullah ◽  
Hanping Mao ◽  
Ghulam Rasool ◽  
Hongyan Gao ◽  
Qaiser Javed ◽  
...  
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Irrigation Water ◽  
N Fertilization ◽  
Water Levels ◽  
Growth And Yield ◽  
Root Surface Area ◽  
Irrigation Water Use Efficiency ◽  
Irrigation Water Use ◽  
Use Efficiency

This study was conducted to investigate the effects of various irrigation water (W) and nitrogen (N) levels on growth, root-shoot morphology, yield, and irrigation water use efficiency of greenhouse tomatoes in spring–summer and fall–winter. The experiment consisted of three irrigation water levels (W: 100% of crop evapotranspiration (ETc), 80%, and 60% of full irrigation) and three N application levels (N: 100%, 75%, and 50% of the standard nitrogen concentration in Hoagland’s solution treatments equivalent to 15, 11.25, 7.5 mM). All the growth parameters of tomato significantly decreased (p < 0.05) with the decrease in the amount of irrigation and nitrogen application. Results depicted that a slight decrease in irrigation and an increase in N supply improved average root diameter, total root length, and root surface area, while the interaction was observed non-significant at average diameter of roots. Compared to the control, W80 N100 was statistically non-significant in photosynthesis and stomatal conductance. The W80 N100 resulted in a yield decrease of 2.90% and 8.75% but increased irrigation water use efficiency (IWUE) by 21.40% and 14.06%. Among interactions, the reduction in a single factor at W80 N100 and W100 N75 compensated the growth and yield. Hence, W80 N100 was found to be optimal regarding yield and IWUE, with 80% of irrigation water and 15 mM of N fertilization for soilless tomato production in greenhouses.

scholarly journals An Analytical View on Water Use Efficiency of Some Main Crops Grown in the Non-costal Parts of Thrace Region

2020 ◽  
pp. 47-57
Author(s):  
Recep Cakir
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Irrigation Water ◽  
Field Experiments ◽  
Soil Depth ◽  
Growth Stages ◽  
Irrigation Water Use ◽  
Rainfed Farming ◽  
Use Efficiency ◽  
Thrace Region

The article contains data obtained from evaluations related to irrigation water use efficiency (IWUE) and water use efficiency (WUE), for the main crops, irrigated at different stages of growth, on the basis of some findings obtained in the Research Institute in Kırklareli. Each of the experimental crops was sown and farmed following procedures applied by the farmers in the region, except of the irrigation applications which were based on the sensitivity of a certain crop to water shortage in the soil, during the specific growth stages. Similar procedures were applied and all the experimental treatments were irrigated at growth stages, as predicted in the research methodology, and water amounts required to fill the 0-90 cm soil depth to field capacity were implied. Evaluation data obtained from the field experiments with three major crops, grown on the non-coastal lands of Thrace Region showed, that the productivity of irrigation water, as well as water use efficiencies of all analysed crops, are growth stage controlled. The highest IWUE and WUE efficiencies of 0.87 and 0.92 kg da-1 m-3; and 1.08 kg da-1 m-3 and 0.81 kg da-1 m-3; were determined for wheat and sunflower crops, irrigated at booting and flowering stages, respectively. Each m3 of irrigation water, applied during the most sensitive fruit formation stage (Ff) of pumpkin crop, provided additionally 8.47 kg da-1 fruit yield, 8.09 fruit numbers and 0.28 kg da-1 seed yields, more than those of rainfed farming (R).

scholarly journals Optimization of irrigation water use efficiency evaluation indicators based on DPSIR-ISD model

2019 ◽  
Vol 20 (1) ◽  
pp. 83-94 ◽  
Author(s):  
Liu Dong ◽  
Zhou Lihui ◽  
Li Heng ◽  
Fu Qiang ◽  
Li Mo ◽  
...  
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Irrigation Water ◽  
Sanjiang Plain ◽  
Irrigation Water Use Efficiency ◽  
The Sanjiang Plain ◽  
The Sustainable Development ◽  
Irrigation Water Use ◽  
Use Efficiency ◽  
Agricultural Water Resources

Abstract The evaluation of irrigation water efficiency plays an important role in the efficient use of agricultural water resources and the sustainable development of agriculture. In order to make the evaluation of irrigation water use efficiency indicators more comprehensive and scientific, this paper constructs a new optimal model of evaluation indicators. By combining the Driver-Pressure-State-Impact-Response (DPSIR) model with the Information Significance Difference (ISD) evaluation indicators model, a novel DPSIR-ISD evaluation indicators combination model was constructed. Ten riverside irrigation areas in the Sanjiang Plain of northeastern China were selected for analysis. The results show that the DPSIR-ISD model was used to reduce the number of indicators from 44 to 14; these 14 indicators reflected 91.88% of the original information. The DPSIR-ISD method proposed in this paper takes into account the completeness and simplicity of the indicators system, and is more in line with the actual situation in the field. These results can provide a simpler and more convenient system for optimizing indicators for the study of evaluation indicators used to analyze irrigation water use efficiency.

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