soil water Articles
-
Evaluation of the AquaCrop model for simulating yield response of winter wheat to water on the southern Loess Plateau of China
The objective of this study was to evaluate the performance of the FAO-AquaCrop model in winter wheat in the southern Loess Plateau of China. Multi-year field experimental data from 2004 and 2011 were used to calibrate and validate the model for simulating biomass, canopy cover (CC), soil water content, and grain yield under rainfed conditions. The model performance was evaluated using root ...
-
Performance of a new capacitance soil moisture probe in a sandy soil
Rapid population growth and increasing urban demand reduce the availability of water for agriculture in Florida. The water-holding capacity of sandy soils in the Central Florida Ridge area is very poor (<0.10 m3 m–3). Improved soil water monitoring probes can help growers manage irrigation more efficiently and conserve water. This study evaluated a new soil water probe (ECH2O EC-5 sensor, Decagon ...
-
Soil Moisture Terminology
Soil Moisture Terms. What do they mean and how do we use them? By the end of this short article you will hopefully understand the following statement. “For good crop growth, maintaining water above stress point will maximise vegetative growth. Setting a refill point above stress point will ensure there is always readily available water for the crop. Replacing ...
By Wildeye
-
Biosolids increase soil aggregation and protection of soil carbon five years after application on a crested wheatgrass pasture
Biosolids application to rangelands and pastures recycles nutrients and organic matter back to soils. The effects of biosolids (20 and 60 dry Mg ha–1) and N+P fertilizer on soil aggregate stability, bulk density, aeration porosity, and total C and N of stable aggregates were evaluated 4 and 5 yr after surface application to a crested wheatgrass [Agropyron cristatum (L.) Gaertn.] pasture in the ...
-
Effect of N-(n-butyl) Thiophosphoric Triamide and 3,4 Dimethylpyrazole Phosphate on gaseous emissions from grasslands under different soil water contents
The intensification of grassland systems is leading to serious environmental risks due to the large input of nitrogen (N) in fertilizers and the subsequent gaseous losses. Addition of nitrification inhibitors (NI) or urease activity inhibitors to fertilizers could reduce these losses to the atmosphere. In the present study, the effects of the nitrification inhibitor 3,4-dimethylpyrazole phosphate ...
-
Nitrous oxide production in an eastern corn belt soil: sources and redox range
Nitrous oxide derived from soils is a main contributor to the greenhouse gas effect and a precursor to ozone-depleting substrates; however, the source processes and interacting controls are not well established. This study was conducted to estimate the magnitude and source (nitrification vs. denitrification) of N2O production as affected by the form of N fertilizer, soil water content, and redox ...
-
Do synergistic relationships between nitrogen and water influence the ability of corn to use nitrogen derived from fertilizer and soil?
To improve site-specific N recommendations a more complete understanding of the mechanisms responsible for synergistic relationships between N and water is needed. The objective of this research was to determine the influence of soil water regime on the ability of corn (Zea mays L.) to use N derived from fertilizer and soil. A randomized split-block experiment was conducted in 2002, 2003, and ...
-
In-situ soil moisture conservation: utilisation and management of rainwater for crop production
The salient results of in-situ soil water conservation technologies that have been found suitable for increasing soil moisture in the arid and semiarid lands of eastern Kenya are reviewed. The results showed that Zai pits, tumbukiza and deep tillage when used together with soil fertility improvement can increase crop yields by 4–10 times in comparison to conventionally cultivated fields. ...
-
Irrigation Systems 101: What you need to know
In the perfect scenario everyone could rely on rainwater for their farming practices, but this is not always the case. This is why employing the right choice from the different irrigation systems available is crucial for agricultural success. Irrigation systems are basically an artificial way to provide water to fertile soil for agricultural purposes. Crop irrigation is necessary to overcome ...
-
Effects on macronutrient contents in soil-plant irrigated with different quality waters and wastewaters
The goals of this research were focused on investigating the effects of irrigation with untreated wastewater, ozone-enhanced primary treated wastewaters (O3EPTW), tap water and tap water + fertilizer on the macronutrient content in soil and plant tissues. The effect on plant development was evaluated by growing Lactuca sativa in soils irrigated with these different quality waters and ...
-
Modifying broiler diets with phytase and vitamin d metabolite (25-OH D3): impact on phosphorus in litter, amended soils, and runoff
Received for publication April 14, 2009. Adding phytase and 25- hydroxycholecalciferol (25-OH D3) to broiler diets has been shown effective at reducing total P concentrations in broiler litter. This study was conducted to determine the impact of field application of broiler litter from modified diets on P solubility in litter-amended soils and P losses in runoff. Five broiler diets and their ...
-
Chain - Agriculture in cooperation with nature - Case Study
Client Institute of Field and Vegetable Crops Croatian Agricultural Land Agency Financed by The European Union from the Fund for the Serbia-Croatia cross-border cooperation Countries Republic of Serbia and Republic of Croatia Background project The Danube region is a major international hydrological basin and ecological corridor. This requires a regional approach to nature ...
-
Effect of deficit irrigation and fertilization on cucumber
Soil water budgets are essential in determining the proper timing and amount of irrigation. Organic fertilizers can be substituted for commercial fertilizers; however, information is sparse on the interaction of irrigation management and nutrient source on cucumber (Cucumis sativus L.) production. This study evaluated nutrient source and irrigation management on growth and yield of cucumber grown ...
-
The Accurate Way to Soil Moisture Sensing
Why Acclima soil moisture sensor technology is superior in terms of accuracy and cost Permittivity is a property of matter and is well characterized especially for materials that are electrically non-conductive. Water in its pure form is non-conductive. Permittivity quantifies the charge holding capacity for insulating materials. It is the ratio of stored electric charge to an applied electric ...
-
Dry Bean landrace and cultivar performance in stressed and nonstressed organic and conventional production systems
High-yielding cultivars adapted to stressed and nonstressed production systems (PS) would maximize efficiency of soil water and nutrient usage, compete well with weeds, resist diseases and insect pests, and reduce dependence on water, fertilizer, and pesticide. The objectives of this study were to (i) determine the performance of dry bean (Phaseolus vulgaris L.) landraces and cultivars across ...
-
Function and production of carbon based fertilizer
Function of carbon based fertilizer Organic carbon fertilizer based on high-quality humic acid and fulvic acid can promote the formation of soil aggregate structure, reduce soil bulk density, increase cation exchange capacity, and regulate soil pH, thus contributing to improving soil water, fertilizer, heat preservation and ventilation capacity. Carbon based fertilizer processed by fertilizer ...
-
Can water use efficiency be modeled well enough to impact crop management?
Crop water use efficiency (WUE, yield per unit of water use) is key for agricultural production with limited water resources. Policymakers and water resource managers working at all scales need to address the multitudinous scenarios in which cropping systems and amounts, timing and methods of irrigation, and fertilizer applications may be changed to improve WUE while meeting yield and harvest ...
-
Soil tensiometer
What is a soil tensimeter? Soil tensimeter uses the principle of negative pressure to measure soil moisture and studies soil moisture movement from the perspective of energy. Transparent PVC pipe can clearly see the amount of water, low-end with high-quality clay head, fast sealing, accurate measurement. Soil tensiometer is a practical method to measure soil condition by using a negative pressure ...
-
Considerations on the importance of nutrition habits for the national nitrogen balance of Austria
The anthropogenic nitrogen turnover of Western societies is highly unbalanced. As a consequence, a permanent supply of nitrogen via mineral fertiliser (produced with high energy inputs) and/or imported fodder are required and result in significant impacts of nitrogen emissions on the environment (air, water, soil). Key factors to an improved nitrogen balance on a national scale are the nutrition ...
-
Heritability of N2 fixation traits, and phenotypic and genotypic correlations between N2 fixation traits with drought resistance traits and yield in peanut
Drought stress reduces growth and yield in peanut (Arachis hypogaea L.) and also reduces nitrogen fixation (NF). Peanut production in drought prone areas should be enhanced by the development of cultivars that can fix more nitrogen (N) under drought conditions. The aims of this study were to estimate heritability for NF and to estimate phenotypic and genotypic correlations among traits related to ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you