The influence of biological techniques in the feed crop rotation link on soil productivity and fertility
https://doi.org/10.32634/0869-8155-2022-362-9-79-83
Abstract
Relevance. New fertilizers Azotovite and Phosphatovite do not pollute the soil and provide significant savings when applying in combination with traditional fertilizers. Studies on the use of Azotovite and Phosphatovite in the conditions of the Novgorod region on sod-podzolic soil in improved fodder crop rotations have not yetbeen conducted, therefore research on the influence of Azotovite and Phosphatovite together with mineral fertilizers in improved crop rotations is relevant.
Methods. The results of studies of two-factor field experiment, carried out in 2019–2021 on sod-podzolic soil in the conditions of the Novgorod region, are presented to study the influence on the yield and nutritional value of forage cropsof three methods of using Azotovite (A) and Phosphatovite (P) — factor H— and mineral fertilizers in full dosagesfor a programmed yield (background 1) andin dosages, reduced by 50% (background 2) (factor B) in the feed crop rotation link: spring rapeseed for siderate; winter rye and spring barley for grain. The use of crop-root residues, siderates and grain straw serves as a basis for increasing soil fertility.
Results. It was established that the introduction of a complete mineral fertilizer based on the planned harvest, the double use of Azotovite and Phosphatovite in technological operations— etching of seed material (by 2 l/t of each preparation) and non-root spraying of plants in the period up to 30 cm (by 1 l/ha of each preparation) —provided high productivity of siderate (38.2 t/ha),grain of winter rye (7.1 t/ha) and spring barley (4.1 t/ha); digestible proteinin amount 0.65 and 0.34 t/ha was obtained, low energy intensity of grain production (less than 3.0 GJ/t) is combined with high energy efficiency of production — 5.8 units. The use of siderate and grain straw as organic fertilizers allowed to increase soil fertility on average per crop rotation link for all variants of the experiment by more than 47 GJ/ha.
Keywords
crop rotation link,
Azotovite,
Phosphatovite,
straw,
siderate,
yield,
soil fertility,
energy intensity
About the Authors
A. B. Tiranov
Novgorod Research Institute of Agriculture – branch of the St. Petersburg Federal Research Center of the Russian Academy of Sciences
Russian Federation
Russian Federation
Candidate of Economic Sciences, Senior Researcher at the Laboratory of Agrochemistry and Agriculture,
2, Parkovaya str., Borki Village, Novgorodsky District, Novgorod Region, 173516
A. V. Grigoriev
Novgorod Research Institute of Agriculture – branch of the St. Petersburg Federal Research Center of the Russian Academy of Sciences
Russian Federation
Russian Federation
Senior Researcher at the Laboratory of Agrochemistry and Agriculture,
2, Parkovaya str., Borki Village, Novgorodsky District, Novgorod Region, 173516
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Review
For citations:
Tiranov A.B., Grigoriev A.V. The influence of biological techniques in the feed crop rotation link on soil productivity and fertility. Agrarian science. 2022;(9):79-83. (In Russ.) https://doi.org/10.32634/0869-8155-2022-362-9-79-83
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