Understanding the historical probability of drought
If soil measurements are not available, however, the researchers recommend that the calculations used for atmospheric assessments be reconfigured to be more accurate. The authors made two such changes in their study. First, they decreased the threshold at which plants were deemed stressed, thus allowing a smaller deficit to be considered a drought condition. They also increased the number of days over which atmospheric deficits were summed. Those two changes provided estimates that better agreed with soil water deficit probabilities.
Further research is needed, says Ochsner, to optimize atmospheric calculations and provide accurate estimations for those without soil water data. “We are in a time of rapid increase in the availability of soil moisture data, but many users will still have to rely on the atmospheric water deficit method for locations where soil moisture data are insufficient.”
Regardless of the method used, Ochsner and his team hope that their research will help farmers better plan the cultivation of their crops and avoid costly losses to drought conditions.
- Rust detected in Ark. soybeans, but won’t affect current crop
- Select soybean varieties with genetic disease resistance
- Landmark Services Cooperative, Curry Seeds sign agreement
- Bullish outlook for feed grains, global food trade
- Try to apply fall herbicide treatments before December
- USDA to improve rural telecommunications infrastructure
- How much corn can the ethanol industry use?
- Economist: Taxing P could reduce risk of algal blooms
- Commentary: Government wants farmers to quit farming
- Ag markets made a generally mixed showing Thursday night
- What is the relationship between maturity group, yield?
- Commentary: Ambulance-chaser lawyers take on Syngenta