The influence of azotovite and phosphatovite on crop yields in the crop rotation link

Abstract

The results of studies of two–factor field experience for 2019-2021. On the study of the influence of three methods of using azotovite (A) and phosphatovite (F) - (factor B) and mineral fertilizers (background 1, 2) (factor NQ) on the yield and nutritional value of forage crops in the link are presented improved fodder crop rotation: spring rapeseed for green mass; winter rye and spring barley for grain on sod-podzolic soil in the conditions of the Novgorod region. High efficiency was ensured by the use of azotovite and phosphatovite (factor B3) – treatment of seed material with preparations (A + F for 2 l / t of each preparation) and non-root treatment of crops in phases: tillering of cereals and leaf formation-stalking of rapeseed (A + F for 1 l/ha of each preparation) against the background of 1. Yield cultivated crops over the years of research amounted to 34.7; 6.8 and 4.4 t/ha, which is 27; 25 and 33% higher in relation to background 1, respectively, with a production profitability of 130-160%. On average, for the crop rotation link, the highest yield of feed units is 5.8 thousand/ha, digestible protein is 0.47 t/ha, as well as an increase in the provision of digestible protein for a feed unit by 6 grams was obtained when using factors N1P1K1 and B3 in relation to background 1 in technological operations. In this variant, the best economic and energy effect was revealed – the conditional net profit increased by 37% (in 2019 prices), the energy intensity of the production of basic products decreased by 20%, the energy efficiency of production increased by 24% relative to background 1.