Project Details:

Title:
Promoting Irrigation Scheduling Methods for Soybean with Tennessee Crop Consultants and UT Extension Agents

Parent Project: This is the first year of this project.
Checkoff Organization:Tennessee Soybean Promotion Board
Categories:Irrigation, Environmental stress
Organization Project Code:19-113-R
Project Year:2019
Lead Principal Investigator:Brian Leib (University of Tennessee-Institute of Agriculture)
Co-Principal Investigators:
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Information and Results

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Project Summary

Irrigation decision are challenging in a humid region like Tennessee because rainfall patterns are difficult to predict. Even with the best forecasts, Tennessee irrigators are making irrigation decisions without knowing what will develop in the future: a four week drought, a four inch rain or something in between. Frequent irrigation can keep soil too wet for optimum yield especially when unexpected heavy rain occurs and deciding not to irrigate because chances of rain are on the horizon can create conditions too dry for optimum yield In addition to rainfall variability, soils vary in water holding capacity and their ability to drain excess water which change the irrigation requirements. Also, soybeans can have a large variation in planting date (late April to mid-June) which changes soybean water use and sensitivity to drought according to growth stage. Irrigation scheduling tools can help producers know the water status of their fields to avoid crop stress from either waterlogging or drought. Presently, crop consultants and University of Tennessee-Extension are using several methods to help Tennessee producers schedule irrigation

Project Objectives

Compare 5 methods of irrigation scheduling presently being used in Tennessee in two to three soybean fields during 2019.
1. WaterMark with Hand Reader
2. WaterMark with PrecisonKing logger and cell communication
3. AquaSpy capacitance probe with logger and cell communication
4. METER MPS-6/Terros-21 sensors with logger and cell communication using METER cloud.
5. METER MPS-6/Terros-21 sensors with logger and cell communication using UT-Moist+.

Create opportunity for UT-Extension and crop consultants to work together for learning about and promoting irrigation management in soybean.

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Final Project Results

Benefit to Soybean Farmers

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