E.A. Sirotina, I.B. Sorokin, O.A. Petrovskaya
Station of agrochemical service «Tomsk», Beringa Str., 12a, Tomsk, 634063, Russia
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Summary. The main function of agricultural landscapes – the ability to provide long-term quality and quantity of crop yield without increasing the cost for their cultivation and reproduction of soil fertility. Farming system with the use of green manure and straw as fertilizers in long-term field stationary experiment in municipal poultry farm «Novo-Arkhangelsk» in Tomsk region was used. Soil of experimental field – gray podzolic heavy loamy typical for subtaiga zone in Siberia. Scheme of experiment includes variants of applying straw after harvest by plowing, mineral nitrogen in spring after cultivation, green manure of legumes (clover white, red and a mixture of red clover with Timothy grass) once in crop rotation. While the first rotation with using straw the additional yield of grain was in total 10,4 quintal-ha (14% to control). Applying green manure jointly with straw provided during three years (2001-2003) the increase in the grain yield to control – 12,3 quintal-ha (28%). In the first year after applying green manure a significant increase of above parameter was obtained – 8,8 quintal-ha (41,9%). While implementing green manure together with straw from 2001 to 2013, the average yield increased by 19% in comparison variant of clean fallow without fertilizing, and was on the same level as applying N45 (18%). The increase of yield while applying green manure along with regular use of straw was 3,4 quintal-ha, N45 – 3,2 quintal-ha, straw with N45 – 4,2 quintal-ha.
Keywords: renewable bioresources, green manure, straw, gray forest soil, yield of grain crops.
Author Details: E.A. Sirotina, Leading Chemist (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.); I.B. Sorokin, Dr. Sc. (Agr.), Director; O.A. Petrovskaya, Head of Laboratory.
For citation: Sirotina E.A., Sorokin I.B., Petrovskaya O.A. Influence of agrocenoses bioresources on yield of grain crops in subtaiga zone of Siberia. Dostizheniya nauki i tekhniki APK. 2015. T.29. №1. pp. 17-19 (In Russ)