Phosphorus, potassium, sulfur and nitrogen. All are traditional nutrients growers plan to put into soil each year to help maximize their yield potential. But did you know there are 3 other major components that are often overlooked?
How valuable is poultry manure? This may not be a straightforward answer and depends on several factors, including the nutrient(s) required for a specific field. Here is one example using the average nutrient analysis values from southeast Kansas of 56-53-46 (N-P2O5-K2O lb per ton).
Corteva Agriscience partnered with Dan Quinn, assistant professor of agronomy at Purdue University, to perform several trials of Instinct NXTGEN nitrogen (N) stabilizer. Trial objectives were to gather data on corn yield, plant N uptake and soil N availability on plots that received N treated with Instinct versus plots that were left untreated by Instinct.
Jackson Stansell, Founder and CEO of Sentinel Fertigation describes his new software platform, N-TIME. A nutrient management platform, N-TIME focuses on nitrogen recommendation for farmers, specifically those applying fertilizer in season. By analyzing multiple sources of satellite imagery, N-TIME isolates the impact nitrogen has on potential yields, tracks nitrogen sufficiency and determines a seven day nitrogen demand for the observed crops.
In the 19th century, the German scientist Justus von Liebig formulated the Law of the Minimum, which states that if one of the essential plant nutrients is deficient, plant growth will be poor even when all other essential nutrients are abundant.
The sensors allow for farmers to measure nutrient levels in the soil constantly, rather than pulling soil cores throughout the growing season to see what's needed.
The two primary loss pathways are leaching and denitrification, both of which happen when N is in the nitrate form. The conversion of N to nitrate is biological in nature, and is therefore time and temperature dependent.
As Corn Belt states seek ways to curb nitrogen flow from farms into the Gulf of Mexico, new University of Illinois research adds evidence for winter cover crops as an important part of the solution.
This summary is based on 55 field scale research trials conducted at Purdue Ag. Centers and with on-farm collaborators around the state of Indiana from 2014 – 2022.
“Nitrogen plays a role in chlorophyll formation — the greenness in plants — which allows them to absorb sunlight more effectively. Chlorophyll is a plant’s energy manufacturing system,” said Warren Formo, executive director of the Minnesota Agricultural Water Resource Center.
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On this episode of Conservation Ag Update, brought to you by Yetter Farm Equipment, Planet Earth Agronomy co-founder Mitchell Fiene reveals a checklist for farmers to consider when shopping for biologicals.
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