EFFICIENCY OF NEW FERTILIZERS AND GROWTH REGULATORS FORMS APPLICATIONS FOR CULTIVATION OF WINTER WHEAT, HULLESS AND CHAFFY OAT
Abstract
The article presents materials of experiments with winter wheat (Bogatko and Suite varieties), as well as with chaffy oat (Zapavet variety) and hulless oat (Gosha variety) on sod-podzolic light loamy soil of the North-Eastern part of Belarus. The effect of new compound fertilizer with microelements for pre-sowing application on yield and quality of winter wheat grain, hulless and chaffy oat is studied. It was developed by the Institute of Soil Science and Agrochemistry, as well as liquid compound fertilizer Adob Med (Poland), new compound microfertilizers based on microelement and plant growth regulator MicroSteam – Med L and MicroSil – Med L (Belarus), water-soluble compound fertilizer Nutrivant Plus (Israel) and plant growth regulator Ecosil. The maximum yield of winter wheat grain of Bogatko (74.5 c/ha) and Suite (75.9 c/ha) varieties was at combination of 30 t/ha of manure with application of N20P64K140 + N70 + N40 + N40. Nitrogen fertilizers significantly increased the content of crude protein and crude gluten in the winter wheat grain. The positive effect on increase in crude protein content in the wheat grain of Bogatko and Suita varieties was determined with application of plant growth regulator Ecosil and some fertilizers Adob Med and Ecolist Grains on the background of N20P64K140 + N70 + N40 + N40. The content of crude gluten in grain of both varieties of wheat increased significantly with the use of the plant growth regulator Ecosil, as well as microfertilizer Adob Med, compound fertilizers Ecolist Grains, MicroSteam – Med A and MicroSil – Med L. Chaffy oat of Zapavet variety proved to be more responsive to fertilization - the grain yield was higher than in case with hulless oat of Gosha variety. Application of microfertilizer Adob med on the background of the maximum doses of mineral fertilizers N80P70K120+N40 карб allowed to obtain the highest yield of oat grain (58.0 c/ha), in this variant of the experiment the maximum crude protein content was 14.5 and 17.2 % for hulless and chaffy oat, respectively.