Planting Date Study

2017 Kentucky Soybean Planting Date Study

  • Kentucky

The purpose of this study is to determine the optimum planting date window by planting multiple dates throughout the growing season.

OBSERVATION

Multi-year data has shown that late April to early May is the optimum time to plant soybeans in Kentucky. There are, however, some challenges with planting too early. Cold, wet soil conditions can be challenging for emergence and can increase early-season seedling diseases. Additionally, soybeans are far more susceptible to frost events after emergence due to the growing point being above the soil surface. 

 

13-YEAR OPTIMUM PLANTING DATE WINDOW

 

2017 RESULTS

 

STUDY INFORMATION

Planted Various | Harvested Various | Population 140,000 Seeds/A. | Row Width 15 in. | Previous Crop Corn | Tillage Fall: In-Line Rip, Spring: Vertical-Till/Field Cultivation | Herbicides Post: 4.5 oz. Anthem® Maxx, 1 qt. Liberty®, 4 oz. Clethodim | Insecticides Escalate| Soil Type Dekoven & Wakeland (Silt Loam) | Soil Test Values pH 6.5, O.M. % 1.9, CEC 7.4 | Percent Base Saturation Ca 67.1, Mg 14, K 2.8, H 16.1 | Parts Per Million P 26, K 81, S 4, Zn 2.5, Mn 41, B 0.2 

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