Open AccessEfficiency of integrated use of mineral and microbiological fertilizers on winter rye yield in the Novgorod region
Author(s) -
Людмила Васильевна Тиранова,
Александр Борисович Тиранов
Publication year - 2021
Publication title -
agrarnaâ nauka
Language(s) - English
Resource type - Journals
eISSN - 2686-701X
pISSN - 0869-8155
DOI - 10.32634/0869-8155-2021-345-2-81-83
Subject(s) - hectare , yield (engineering) , agronomy , fertilizer , environmental science , raw material , pesticide , mathematics , biology , agriculture , materials science , ecology , metallurgy
As a result of the research experiment it was established that the highest yield of winter rye grain of 7.3 and 6.3 t/ha and digestible protein of 0.66 and 0.57 t/ha were obtained when applying doses of mineral fertilizers based on the planned yield (background 1) and reduced by 50% (background 2) in relation to background 1 and double use of microbiological fertilizers: in a tank mixture with a pesticide when etching seeds of 2.0 l/t and non-root treatment of crops in the tillering — exit phase at plant height up to 30 cm of 1 l/ha of each preparation. The use of Azotovite and Phosphatovite twice in technological operations allowed to obtain an additional yield of winter rye grain of 2.4 and 2.1 tons per hectare (more than 48%) in relation to backgrounds 1 and 2 respectively. High grain yield and low cost of microbiological fertilizers, as well as their combined use in tank mixtures with pesticides, provided high energy-economic indicators of winter rye cultivation technologies: low energy intensity of production of a ton of grain (less than 2.4 GJ), high energy efficiency coefficient (more than 7.2 units), production profitability of more than 170%.