- Effect of controlled drainage on nitrogen fate and transport for a subsurface drained grass field receiving liquid swine lagoon effluent , AGRICULTURAL WATER MANAGEMENT (2019)
- Effect of drainage water management on nitrate nitrogen loss to tile drains in North Carolina , Transactions of the ASABE (2018)
- Effects of drainage water management on crop yields in North Carolina , Journal of Soil & Water Conservation (2013)
The the objectives of this integrated proposal are: 1) demonstrate and evaluate the crop yield and water quality benefits of drainage water capture and reuse for supplemental irrigation; 2) conduct an economic analysis to assess the feasibility of implementing the practice; 3) develop a design tool to optimize the performance of drainage water capture and reuse systems; and 4) educate the stakeholder on the proposed practice.
The cost of corn production is increasing. Nutrient inputs are at historically high costs at a time where there is increased variability in growing season conditions. Crops can experience multiple kinds of stresses and better information is needed on strategies that allow the crop to perform as well as possible while using a minimum of inputs. In North Carolina three of the most substantial production costs are seed, nutrient inputs, and water management infrastructure. This project further develops relationships between water stresses and nutrient uptake so that the response to stress conditions will protect the varietyÃ¢â‚¬â„¢s yield potential, optimize nutrients, and suggest manage water approaches Ã¢â‚¬â€œ addressing all the major cost centers. The larger outcome of this research and extension effort is in-season response to water challenges such that nutrient input may be reduced and profitability improved.
The purpose of this project is to set up a statewide soil moisture monitoring network for corn production that research and extension specialists, area specialized agents, county agents and growers can use in developing corn specific irrigation and water management protocols during the growing season based on existing soil water conditions across the state. This project will provide the initial instrumentation across the state, the cloud database, and access to the data, along with training to growers and agents on how to interpret and use the real time data for making irrigation and water management decisions during the growing season.
This research and extension project will evaluate the yield of various soybean varieties to various soil water conditions. Excessive soil water, deficit soil water and adequate soil water condition will be considered. In addition, the project will evaluate the nutrient use of the varieties under each soil water scenario. This information will provide valuable data for variety selection and in season nutrient needs given observed and expected soil water conditions for individual farms.
This research and extension project will evaluate the potential yield of various corn hybrids from multiple maturity groups to various soil water conditions. Excessive soil water, deficit soil water and adequate soil water condition will be considered. In addition, the project will evaluate the nitrogen and phosphorus use of the hybrids under each soil water scenario. This information will provide valuable data for hybrid selection and nutrient needs given observed and expected soil water conditions for individual farms.
The primary goal of this research and education project is to evaluate and demonstrate an economical system to automatically manage agricultural drainage and subirrigation in order to maximize corn yields, conserve water, and significantly minimize direct user management. Specific objectives are: 1. Developing corn-specific management protocols for the new generation of drainage water management systems. 2. Conducting a DRAINMOD modeling analysis using historic weather data and different soil types to optimize the management protocol for different soils and weather conditions. 3. Evaluating and demonstrating the management protocol on research fields equipped with the recently developed ÃƒÂ¢Ã¢â€šÂ¬Ã…â€œSMARTÃƒÂ¢Ã¢â€šÂ¬Ã‚Â water control structure, which drains and subirrigates the field based on real time feedback from sensors measuring the water table level in the field. 4. Documenting the corn yield and water conservation benefits of the practice. 5. Demonstrating the use of the new generation of water control structures to growers
The overall goal of the project is to demonstrate and evaluate an economical system to will maximize water use efficiency and reduce energy consumption utilizing existing irrigation and drainage system. Existing or retrofitted ÃƒÂ¢Ã¢â€šÂ¬Ã…â€œSMARTÃƒÂ¢Ã¢â€šÂ¬Ã‚Â system capabilities allow for automated water table controls by managing drainage outlets coupled with both surface and subsurface irrigation systems. However, management protocols need to be tailored to maximize water management for all periods in the soybean growth stages (Emergence (VE) through Full Maturity (R8)). Specific objectives are: 1) Develop a comprehensive water table management protocol for soybeans to enhance soybean yield, conserve water, conserve energy and improve water quality; 2) Document soybean yields and water conservation benefits of the practice; 3) Promote plant health and increase soybean quality; 4) Reduce irrigation and management expenses by managing soil water stresses at all growth stages; 5) Demonstrate the use of the ÃƒÂ¢Ã¢â€šÂ¬Ã…â€œSMARTÃƒÂ¢Ã¢â€šÂ¬Ã‚Â water management system to producers on farm; 6) Conduct a cost-benefit analysis to assess the feasibility of the system
This proposal is submitted by Chad Poole to the Food, Agricultural, Natural Resources and Human Sciences Education and Literacy Initiative (AFRI ELI) to attain a post-doctoral fellowship for two years. The fellowship will give the opportunity to the applicant to gain the experience and grow to become an independent research and extension professional ready to contribute to solving current and future challenges facing agriculture in the US. Chad Poole will conduct research and extension activities to develop and promote drainage water management systems to maximize crop production in response to climate variability. Drs. Mohamed Youssef, Michael Burchell, and George Chescheir will serve as mentors to Chad Poole during the two year fellowship.
This project is implemented on an agricultural field owned by the International Farming Corporation with the overall goal of designing and evaluating an efficient drainage and sub-irrigation management system to maximize crop yield and profits. Three year field experiment will be conducted to evaluate three water management regimes: 1) Conventional drainage, also referred to as free drainage, as the control treatment; drain outlets will remain open and no irrigation water will be added; 2) ÃƒÂ¢Ã¢â€šÂ¬Ã…â€œSmartÃƒÂ¢Ã¢â€šÂ¬Ã‚Â water management system which drains and sub-irrigates the field site based on feedback from water table depth in the field; 3) ÃƒÂ¢Ã¢â€šÂ¬Ã…â€œTraditionalÃƒÂ¢Ã¢â€šÂ¬Ã‚Â irrigation using an overhead system; in this treatment an adjacent field irrigated by center-pivot irrigation system and irrigation decisions are made by the farmer. Hydrological and crop yield data will be collected and compared for the three treatments.
The overall objective of the project is to demonstrate and evaluate a low input economical water management system to maximize corn yield, enhance water quality, reduce operation cost, and greatly minimize production risk. Specific objectives are to: 1) Test a new drainage system design that has the potential to greatly reduce both drought stresses and excessive soil water stresses; 2) Document the yield and water conservation benefits of the practice; 3) Promote plant health and increase corn quality; 4) Reduce the cost of ditch maintenance; 5) Maximize the return on drainage system improvements 6) Conduct a cost-benefit analysis to assess the feasibility of the system