The experiment has been conducted under temperature-controlled conditions (24 ± … Management Strategies for Water Use Efficiency and Micro Irrigated Crops presents new research and technologies for making better use of water resources for agricultural purposes. water use efficiency of crops grown under different soils and climatic condition. WATER USE EFFICIENCY IN DIFFERENT CROPS CULTIVATION: A STUDY OF BORE- WELL OWNING FARMERS FROM SOUTH INDIA . 6. Crop water use efficiency (WUE) has come into sharp focus as population growth and climate change place increasing strain on the water used in cropping. Evaluation report of on-site implementation of at least 2 innovative technologies to improve water use efficiency for soil bound crops . 2015 Dec;126(2-3):351-62. doi: 10.1007/s11120-015-0134-9. On an average about 30% less irrigation water was required compared to flat bed method and improved crop yields by more than 20%. Kang et al., 2002 and Mermoud et al., 2005 reported that the responses of grain yields and water use efficiency to irrigation varied considerably due to differences in soil water content and irrigation schedule. Water Use Efficiency. Controlled alternate partial root-zone irrigation (CAPRI), also called partial root-zone drying (PRD) in other literature, is a new irrigation technique and may improve the water use efficiency of crop production without significant yield reduction. Cowpea as a Influence of water deficit stress on the regulation of photosynthetic gas exchange in … The Initiative's goal was to achieve a 10 per cent increase in the WUE of their farming systems. In semi-arid regions, like Machakos, crops use only a small fraction of total rainfall received in many agricultural systems. In times of drought, agricultural withdrawals of water from groundwater and surface waters can put major stress on the nation’s water infrastructure. The agricultural water use efficiency in Heilongjiang Province in 2014 was different from that in 2013. While characterizing the geographic variability and long-term sustainability of irrigation in different regions of the country is important, it is beyond the scope of a national trends assessment. Yields increased linearly with seasonal ET. There are 4 inputs for the first 4 seasons. The model can allocate the limited water to different growth stages of crops based on Jensen’s crop water production function, which further improves water use efficiency. [13] Horst MG, Shamutalov SS, Pereira LS*, Goncalves JM (2005) Field assessment of the water saving potential with furrow irrigation in Fergana, Aral Sea basin. There are 4 inputs for the first 4 seasons. nitrogen use efficiency and water use efficiency that is critical in decision making – and the practical consequence that maximising water use efficiency may require nitrogen rates that are too costly, too risky or environmentally unsound. This work can serve as a methodological guide for simulating the water-use efficiency of crops and can be used alongside evidence from the field. Toggle facets Limit your search Text Availability. The method provides the means to promote the development of water-saving irrigation and further improves the economic value of water … The Initiative's goal was to achieve a 10 per cent increase in the WUE of their farming systems. To assist with comparing water use estimates published since the 2015-16 reference period a data item listing is available for download from the "Data downloads" section of this publication. Start Over. Citation in PubAg 229; Full Text 12; Journal. It is a C 4 plant, which confers potentially more efficient use of CO 2, solar radiation, water and N in photosynthesis than C 3 crops. Toggle facets Limit your search Text Availability. 2001). For each of these equations there is a parameter for annual crops. For perennials, the water use efficiency may vary by season; accordingly the key parameter for calculating water use efficiency may be entered for each growing season (added version 4.2.0). Controlled alternate partial root-zone irrigation (CAPRI), also called partial root-zone drying (PRD) in other literature, is a new irrigation technique and may improve the water use efficiency of crop production without significant yield reduction. ... Water-use efficiency of crops in the semi-arid tropics. Increasing Water Use Efficiency in Indian Agriculture. Due to increased water scarcity, many new programmes have been introduced in the recent years to increase the water use efficiency in India agriculture, which consumes over 85 percent of the available water. Water use efficiency (WUE) of maize is approximately double that of C 3 Our research aimed to simulate the water-use efficiency (WUE) of crops considering different irrigation strategies in the Central Valley of Chile. Evaluation at field level [Basilicata]" "Efficienza nell'uso dell'acqua di alcune colture erbacee sottoposte a … Season 5 and on will all use season 5 value. Water Use Efficiency, it is timely that we have a clear idea about the meaning of this term and how it differs from “water productivity”. Canopy water‐use efficiency was highly determined by canopy photosynthetic activity and therefore canopy architecture, which indicates that optimizing the canopy will also contribute to improving canopy water‐use efficiency. We conducted two different field experiments in 2013 and 2014 to investigate the effects of changes in planting geometry on water use efficiency … Water use efficiency (WUE) can be defined as the ratio of leaf photosynthesis and transpiration, the amount of plant or crop dry matter per unit water transpired, or the amount of crop dry matter or lint yield per unit evapotranspiration (Gardner et al., 1985; From: Crop Physiology Case Histories for Major Crops, 2021. Abstract. Legume-based pasture phases can also help to increase infiltration of water through the soil and improve plant access to water and nutrients. Water use and water use efficiency in soybean. water amount), but additional amounts of irrigation did not increase it any further. plays a paramount role in increasing yield and water use efficiency of crops. This is the focus of efforts to save water in agriculture. With the aim of improving water use efficiency (WUE) of grain-based farming systems the Grains Research and Development Corporation (GRDC) started a research initiative across the southern and western regions. Water-use efficiency can be assessed on different temporal and spatial scales, i.e., from seconds to years and from small leaf areas on a single plant to whole ecosystems. water and store it for use by plants, to provide nutrients to crops, and to allow plants to develop stronger root systems. Three efficiency terms discussed in this paper are often misused and misapplied–application efficiency, irrigation efficiency, and water use efficiency. Water Requirement of Cabbage Cabbage has been classified as intermediately susceptible to water stress, with the head formation period being more sensitive than the period before . The ratio of plant carbon gain to water use, known as water use efficiency (WUE), has long been recognized as a key constraint on crop production and an important target for crop improvement. Agricultural production seeks both high total water use (TWU) and high water use efficiency (WUE). The traits include tolerance to drought and salt, as well as avoidance of water stress by improving water use efficiency (WUE). Irrigation management is a key factor in attaining optimal yields, as different irrigation strategies lead to different yields even when using the same amount of water or under the same weather conditions. Water use efficiency in irrigated agriculture: an analytical review 12. The effects of cultivar mixture cropping on yield, biomass, and water use efficiency (WUE) in winter wheat (Triticum aestivum L.) were investigated under non-irrigation (W0, no irrigation during growth stage), one time irrigation (W1, irrigation applied at stem elongation) and two times irrigation (W2, irrigation applied at stem elongation and anthesis) conditions. (Source: B. Jákli) Run … One important question often asked in the context of water use is whether the water is used efficiently in different crops. Water use efficiency (WUE) The rainfall received and irrigation applied to both the rice genotypes under different rice establishment methods and dates of sowing are depicted in Table 2. It characterizes, in a specific process, how effective is the use of water. FIRB planting saved 30 to 50% wheat seed compared to flat bed planting. The water use efficiency of both the cultivars under different treatment combinations estimated and presented in Table 2. Estimating crop water use efficiency on farm The water use efficiency concept is easiest to use in a mediterranean climate. Citation in PubAg 209; Full Text 12; Journal.
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