Most plants depend on the seasonal change in the length of day and night to trigger flowering. This way flowering occurs at the optimum time of year.

This phenomenon, called photoperiodism, was identified nearly 100 years ago in varieties of tobacco and soybean. Plants affected by photoperiodism are called photoperiod sensitive and fall into two categories: short-day or long-day. 

The fundamental process in plants is their ability to produce their own energy through the process of photosynthesis. Eighty-five percent of plant species on earth, including soybeans, are C3 plants. This means they conduct their photosynthetic processes in the "normal" way without any adaptions.

Perhaps you have noticed that soybeans look a little different as the sun goes down. It’s because they are sleeping. 

Adding a tank-mix partner to your pre-seed application protects yield. And there are long-term benefits to using a tank-mix partner, particularly when it comes to fighting the development of weed resistance.

Starting clean with a pre-seed burnoff application helps reduce early-season weed pressure, which helps your crop get off to a good start. Remove weeds early, before they rob moisture and nutrients from the crop and that clean start is critical in producing in-the-bin yield.