Soybean Growth Stages
From cotyledons to unifoliate and trifoliate leaves, good diagrams of growing points, protection of seeds and roots, Rhizobium treatments, nitrogen fixation, effect of hail, determinate and indeterminate varieties, day length, photoperiod sensitivity etc. The importance of choosing soybean cultivar groups in accordance with the bioclimatic group where they are to be grown.
Potassium Deficiency in Soybeans
Symptoms are shown. Trials show differences between potassium, phosphorus and combined phosphorus and potassium responses in plant height, pod and bean number and size.
UNIVERSITY OF WISCONSIN EXTENSION SERVICE
Interview with Chad Godsey – Cropping System Specialist – video clips of soil structure, organic matter, promoting good drainage, new management tools involved.
Staging Reproductive Growth on Soybeans
By understanding the absence / presence of flowers, pods and seeds producers determine the growth stage of their soybean plants.
ILLINOIS SOYBEAN ASSOCIATION
Soybean Water Stress
Irrigation, no-till and early planting all aid in managing water stress. The sooner the canopy closes the better as evaporation and transpiration is reduced so best to plant early. Water and yield losses resulting from evaporation, transpiration and late planting explained.
JIM SPECHT (MARKET JOURNAL)