The influence of micronutrients on the productivity of corn during cultivation on green mass in the southern zone of Amur region

Abstract

The following paper reviews the results of 2017-2019 studies of the influence of types and methods of micronutrient fertilizers application: zinc sulfate, cobalt sulfate and ammonium molybdate on the growth, development and productivity of corn. The studies were conducted in the southern agricultural zone of Amur region on the experimental field of Far Eastern State Agrarian University, located in the village of Gribskoye (Blagoveshchensk district). The object of research was a hybrid Mashuk 175MV (FAO 170) - an early-ripening three-linear hybrid of universal use. Treatment of seeds and plants of corn by microfertilizers was carried out using a solution with a concentration of 0.1%. As a result of studies, it was found that the use of microfertilizers during plants vegetation more effectively affects the accumulation of dry matter than seeds treatment and double treatment of seeds and vegetative plants. When seeds treatment, the most effective variant is the combined use of microelements and when treatment during vegetation is the variant with using cobalt. The use of microfertilizers showed a significant increase in leaf surface area for all variants relative to the background variant. The greatest effect was shown by the variant with the use of cobalt in the seeds treatment and spraying vegetation of plants. The combined use of microfertilizers in the seeds treatment and spraying during vegetation has shown a good increase the yield of green mass of corn. The greatest effect was shown in seeds treatment by cobalt and spraying the plants during vegetation.