THE EFFECT OF HERBICIDAL PROTECTION, MACRO- AND MICRO-FERTILIZERS ON NITROGEN FIXATION AND GRAIN PRODUCTIVITY OF NARROW-LEAVED LUPINE UNDER DIFFERENT WEATHER CONDITIONS IN THE CENTER OF THE NON-CHERNOZEM ZONE OF THE RUSSIAN FEDERATION
2023
Kononchuk, V.V. | Timoshenko, S.M. | Shtyrkhunov, V.D. | Nazarova, T.O. | Tulinova, E.A. | Nikitochkin, D.N. | Akhriev, H.A.
On the soddy-podzolic medium loamy soil of the Center of the Nonchernozem zone of Russia, sufficiently provided with phosphorus and potassium in a wide range of pH, grain yield, productivity indicators and nitrogen-fixing capacity (according to the coefficient N2 - fixation) of lupine narrow-leaved determinant type Ladny, close to the maximum achieved in the experiment values equal to 4.37 t/ha, 1.54 t/ha (crude protein), 57.7 GJ/ha (metabolic energy) and 0.62 (Kf) in dry conditions of the first half of the growing season (HTC 0.90) were created by sowing on spring grain treated (Vitaros VSK) seeds with a norm of 1.6 million/ha against the background of the autumn application of P60 K80 and protective measures. The latter, in addition to dressing, included the treatment of the field with the soil herbicide Camelot, SE or Lazurit, SP, and also twice during the growing season - tank mixtures of the fungicide Spirit, SK with the Miura graminicide (2-3 pairs of true leaves) and the fungicide with the Borey Neo insecticide (budding - the beginning of flowering), to which liquid microfertilizers of an organic nature of an anti-stress and stimulating nature were added, containing a complex of amino acids, peptides and trace elements, including molybdenum and boron, as well as copper and zinc. The increase in grain yield, protein harvest and energy to similar values without their use under similar moisture conditions was 73, 105 and 82%, respectively.
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