It is a tendency of some people to only think of plant nutrition in terms of how much fertilizer to add. This simplification may be understandable since a healthy crop reveals only the above ground plant; the roots that support the visible plant are seldom seen without further exploration.
Eco Agro Resources (EAR) introduces N-Bound nitrogen stabilizer as an alternative to current nitrapyrin formulations to control denitrification and leaching. Unique Penxcel technology delivers a proven nitrogen stabilizer, Dicyandiamide (DCD), in a non-corrosive liquid formulation.
Wheat farmers are now seeing acidic soils across the inland Pacific Northwest. The culprit, as far as anyone can tell, is the abundant use of synthetic nitrogen to increase crop yields, a practice that has otherwise revolutionized production over the past half century. Over time, however, it has contributed to a soil health problem that has farmers worried about the future of farming in the Palouse.
Nearly 1,400 farmers from across the country joined 360 Yield Center for a hands-on field day that focused on high-intensity nitrogen management during Proving Grounds 2015, on Aug. 11, 12 and 13, in Tremont, Ill.
Soil nitrogen’s susceptibility to fluctuations in precipitation poses a particular management challenge that growers and their agronomists are constantly battling, with ever-changing and ever-improving technology and tools.
By Haishun Yang, Roger Elmore, Charles Shapiro and Richard Ferguson, University of Nebraska
Nitrogen will leach when soil water content becomes greater than the maximum soil water holding capacity, as excess water will drain below the root zone carrying within it soluble nitrogen, mostly as nitrate.
The corn and soybean crops are halfway through their life cycle and are currently in the most critical phase of growth. Final yields will be determined by a combination of soil-plant processes that are highly affected by the prevailing climatic conditions in August, existing status of the soil water and nitrogen reserves, biomass production and N uptake to date, and biotic factors such as insect and disease pressure.
Nutrient use efficiency attracts increasing attention in today’s sustainability dialogue. Serving as one of the key metrics of crop nutrition, it reflects responsible management and relates to risks of nutrient loss. However, it hardly connects to the productivity of cropping systems or the fertility of soils, nor does it tell us where the losses are going.