Antonio Mallarino
Planting soybean in the same field that just grew soybean is not recommended. Soybean yield will suffer even before factoring in environmental conditions, weather, and pest/disease pressures.
Four different studies in Minnesota and Wisconsin have shown a yield decline of at least 5% and...
As we enter the harvest season, we know we need to be looking forward to the next growing season at the same time. Having plans in place for your 2022 fertilization program before harvest starts is a good idea. Making these plans is tougher this year due to variable yields across the state due...
A common sight across the state this summer has been yellow or white patches of soybean in otherwise green fields. This ICM Blog will review several possible causes of yellow soybean and provide resources regarding each phenomenon.
Iron Deficiency Chlorosis (IDC)...
Prices for soil fertility inputs have increased greatly in recent months. The bi-weekly “Iowa Production Cost Report” showed a 51% cost increase in anhydrous, a 31% increase for urea, 56% higher...
Sampling corn stalks this fall will likely be later than normal due to the delayed planting in many Iowa cornfields. The overall suggestion is to wait until crop maturity, and sample within 1-3 weeks after kernel black layer. This does not work well for silage corn, so the suggestion is to...
If you are interested in an in-depth course covering soil fertility and nutrient management, then consider attending the Iowa State University Extension and Outreach 2018 Soil Fertility and Nutrient Management Short Course. This is a two-day event that provides an opportunity to dig deeper into...
The Iowa State University Extension and Outreach Soil Fertility web site has undergone a recent redesign and update. The site was updated, but the URL has remained the same (http...
The Using Manure Nutrients for Crop Production publication (PMR 1003) has recently been updated with revised beef cattle and dairy manure nitrogen (N) and phosphorus (P) crop...