Nitrogen Management Tips for Growers
DuPont Pioneer reminds growers they can improve corn nitrogen fertilizer efficiency by knowing how much is already in the soil and how much is needed to maximize yields. Ultimately - DuPont Pioneer Agronomy Research Manager John Shanahan says growers need the right amount at the right place at the right time to obtain maximum yields and get the most out of their Nitrogen application. But determining the correct N rate can be a challenge. First - growers need to assess how much is currently in the soil. This can be done by researching how much was applied and measuring how much was taken off. DuPont Pioneer notes a spring soil sample is another way to help determine the amount of N still left in the soil. Due to the drought and lower yields - Shanahan says there is likely a fair amount of free N this year. Knowing how much is there will help growers apply the right amount in the spring.
When it comes to application of Nitrogen - DuPont Pioneer says placement is important. The suggestion is to apply N in a band and adjacent to the plant with incorporation. They say this is often the most cost effective and can decrease N losses. The ideal time for plants to receive N - according to DuPont Pioneer - is just after emergence. With applications of Nitrogen in the spring and at side-dressing time - crops are able to utilize more of the N and increase yields.
Growers can contact their local Pioneer Agronomist or visit pioneer dot com (www.pioneer.com) for more information.
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