F.M. Davletshin, H.M. Safin, D.S.Ayupov, G.E. Gilmanova
Bashkir State Agrarian University, ul. 50-let Oktyabrya, 34, Ufa, 450001, Russian Federation
Summary. The purpose of this work was to study the responsiveness of widely used sunflower hybrid Bosfora to top-dressings by boron-humate organic and organomineral fertilizers during main stages of organogenesis. The investigations were carried out in 2013-2015 under conditions of the south forest-steppe of the Republic of Bashkortostan at the test field of SPK “Urozhai”, Aurgazin district. The soil was leached chernozem with the content of humus in the arable layer 8.2%, of mobile forms of phosphorus – 108 mg/kg, of potassium – 164 mg/kg, рН was 5.5. The background on the test field was the following: ammonium nitrate (N34) and ammophos (N12P47) were applied before tillage; the chemical weeding at the phase of 5-6 couples of true leaves was conducted by the herbicide Fuzilad Forte with the rate 1 l/ha. The design of the test included the following variants: without treatment (control); Fitosporin-M, 1 l/ha + Borogum, 1.5 l/ha; Fitosporin-M, 1 l/ha + Borogum-M, 1.5 l/ha; Fitosporin-M, 1 l/ha + Borogum-Mo, 1.5 l/ha; Fitosporin-M, 1 l/ha + Izagri Bor, 1.5 l/ha. Spraying of plants by the tank mix in the variants Fitosporin-M, 1 l/ha + Borogum-Mo, 1.5 l/ha and Fitosporin-M, 1 l/ha + Izagri Bor, 1.5 l/ha promoted increase in biological productivity by 610 and 640 kg/ha, respectively, compared to the control. In the experimental variants, the diameter of anthodium was larger by 2.4 cm, the thousand seed weight – by 7.3 and 7.5 g, oil content in seeds – by 0.6 cm, than in the control (19.3 cm, 50.2 g, 47.8%, respectively).
Keywords: sunflower, hybrid, boron-humate organic and organomineral fertilizers, oil content, crop structure.
Author Details: F.M. Davletshin, Cand. Sc. (Agr.), assoc. prof. (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.), H.M. Safin, D. Sc. (Agr.), prof.; D.S. Ayupov, Cand. Sc. (Agr.), assoc. prof.; G.E. Gilmanova, assist.
For citation: Davletshin F.M., Safin H.M., Ayupov D.S., Gilmanova G.E. Responsiveness of Sunflower Hybrid Bosfora to Foliar Feeding in the South Forest-Steppe Zone of Bashkortostan. Dostizheniya nauki i tekhniki APK. 2016. Vol. 30. No. 10. Pp. 94-96 (in Russ).