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- There are various ways to ensure that soil loses as little water as possible. These include plastic sheeting to cover the soil, the use of mulch, and loosening the soil. Plastic sheeting can be used to reduce soil water loss, while also limiting the growth of weeds and providing a warm environment for the crop to grow.
www.farmersweekly.co.za/crops/vegetables/reducing-water-loss-from-soil/
People also ask
Why is evaporation reduced when reducing tillage?
Why is drip irrigation a good option for soil evaporation?
Does soil residue reduce evaporation?
Why does evaporation rate decrease in dry soil?
How does tillage affect soil water balance?
Does drip irrigation reduce evapotranspiration?
Apr 14, 2024 · One of the most effective methods to prevent water evaporation is by applying a layer of mulch on top of your soil. Mulch acts as a barrier between the soil and the air, significantly reducing evaporation.
Soil water evaporation Crop residues reduce the evaporation of water from soil by shading, causing a lower surface soil temperature and reduc-ing wind effects (Klocke et al. 2009; van Donk et al. 2010). A number of studies from both irrigated and rain-fed regions around the United States where no-tillage is used have reported annual irrigation
- Infiltration and Runoff
- Evaporation
- Experiments on Crop Residue and Evaporation in Kansas and Nebraska
- Water Conservation with No-Till
- Crop Yield, Residue Mass and Cover
- Current and Future Research
- Related Publications
Crop residue protects the soil surface from erosion by absorbing the impact energy of water droplets, thus reducing soil particle detachment. Soil particle detachment can cause crusting and sealing of the soil surface which results in decreased infiltration and increased runoff. Residue also slows the velocity of runoff water, allowing more time fo...
Evaporation of water from the soil is reduced when reducing tillage because with more residue, less solar energy reaches the soil surface and wind speed (air movement) is reduced at the soil surface. When the soil surface is wet, evaporation from an uncovered soil (no residue or crop canopy) will occur at a rate that equals the atmospheric demand. ...
Research at Garden City, Kan., showed that up to 30 percent of evapotranspiration (ET) can be evaporation (the E in ET) during the irrigation season for corn and soybean on silt loam soils. The study suggests that a 2.5 to 3.0 inch water savings is possible, when wheat straw or no-till corn stover is present from early June to the end of the growin...
UNL Extension Engineer Paul Jasa compared dryland soybean yields in reduced- and no-till to those in a clean-tilled moldboard plow system. His data came from the Rogers Memorial Farm (near Lincoln, Neb.) in low rainfall years (2000 and 2006). In 2000, the no-till system yielded 24 bu/ac more than the moldboard plow system. In 2006, the difference w...
There are rules of thumb to estimate the amount of residue a crop is expected to produce, based on crop yield. For wheat, multiply the yield (bu/ac) by 100 to get residue mass in lb/ac. For example, a 60 bu/ac wheat crop is expected to produce approximately 6000 lb/ac of residue, which is the amount of residue that was used in the North Platte rese...
Questions remain on how much water can be conserved under various tillage conditions and residue levels. In 2007, a study was initiated on the effect of crop residue on soil water content and crop yield at the UNL West Central Research and Extension Center in North Platte. The experiment was conducted on a Cozad, Neb., silt loam soil on a set of pl...
Harvesting Crop Residues, G1846. Issues of crop residue harvest, including nutrient removal and effects on erosion, soil quality, water loss, and yield are discussed in this NebGuide. We developed a simple calculator to calculate the economic benefit of the kind of water savings discussed here: 1. Download Calculator: Dollar savings from irrigating...
Sep 1, 2020 · Based on the continuous flux measurements over the drip-irrigated and border-irrigated maize fields, we confirmed that the drip irrigation can averagely decrease soil evaporation by 30 mm and 23 %, shorten the growth days by 13 days and 9% compared with the traditional border irrigation on a five-year and regional scale.
- Yahui Wang, Sien Li, Shujing Qin, Hui Guo, Danni Yang, Hon-Ming Lam
- 2020
Feb 1, 2019 · Enhancing WUE at the canopy level can be achieved by adopting practices that reduce the soil water evaporation component and divert more water into transpiration which can be through...
Feb 22, 2023 · Controlling soil water evaporation and surface runoff is an option that can increase water availability in crop production (especially in rainfed crops) while reducing irrigation water use. Irrigation requirement and water productivity are impacted by these reductions, but are the changes deemed sufficient enough for a large-scale project (e.g ...
Assum-ing a seasonal crop evapotranspiration demand of 30 inches, coupling no-tillage with practices preserving high residues could reduce summer soil evaporative losses by about 4 inches (13%).
