Principles of application
Specific composition and production technology allow us to apply fertilizer in a wide range of technological operations, starting with top dressing on winter crops over frozen soil and ending with at sowing, basal, foliar application and side dressing during different periods of the growing season. In view of all above it offers compelling advantages in comparison with ammonium nitrate and urea.
Physiological neutral Sunfert Intense N30S15 fertilizer is suitable for basal, foliar application and side dressing in a wide pH range. Systematic application of Sunfert Intense N30S15 in reasonable doses does not lead to soil acidification. Soil acidification, in turn, causes decreasing of soil microbiota activity, slowing in decomposition of plant residues, destruction of organic pollutants (xenobiotics), increasing of carbon emissions from fields, nitrous oxide.
High efficiency of fertilizer conditioned by combining of ammonium and NH2 nitrogen forms as well as Sulphur in a form of sulphate, which are less inclined to leaching and lixiviation.
It is recommended to use fertilizer in nutrition programs for all crops, soil types and working solutions with other agrochemicals by taking compatibility test beforehand. Fertilizer doses are calculated in accordance with crop nitrogen and Sulphur demand and availability of these elements in a growth medium. Granules can be spread with mineral fertilizer spreader, sowing machine, cultivator-fertilizer or if using a liquid form – with spraying machine. Working solution is to be prepared on the day of application. Right amount of fertilizer is to be added to the 1/3 full of water mix tank or sprayer’s tank and stirred by adding water to the required volume. Nitrogen and Sulphur as components of solution are quickly absorbed by plants through foliar surface and are directly involved in metabolism. Low biuret content prevents plants intoxication, leaf burn and increases application rate.
Application of Sunfert Intense N30S15 while sowing causes short-term local decline in soil pH, that improves solubility of hardly accessible nutrition compounds and their higher accessibility to plant, however, in further, soil reaction returns to the previous state. Ammonium sulphate which is contained in fertilizer inhibits activity of enzymes and in this way depresses activity of nitrifying bacteria and because of its emission reduces nitrogen losses and facilitates prolongation of nitrogen nutrition in plants. Almost all nitrogen which is contained in fertilizer binds to soil-absorbing complex quickly and reliably not allowing rapid formation of nitrate-nitrogen that prevents its leaching. Fertilizer application is highly relevant to friable soils.
Sanfert intense N30S15 is a valuable source of nitrogen for aerobic bacteria at the point of mineralization of plant residues that are incorporated into the soil (thatch, cornstalks, sunflowers).