Optimization of the production process of sunflower agrocenosis using growth regulators
Journal Title: «Таврійський науковий вісник» - Year 2018, Vol 101, Issue
Abstract
The purpose of the research is to study the influence of growth regulators Vermimag and Vermiodes applied for the pre-sowing seed treatment and spraying of the stands of sunflower hybrid NK Brio on their photosynthetic and seed yield. The study was conducted in 2013-2016. The soil in the experimental site was turf, podzolic, medium-loamy. Seeds were sown at a rate of 70 thousand / hectare of germinable seeds. The total area of the plot is 70 m2, the registration area is 50 m2. Placement of plots is systematic for a four-time repetition. The research is carried out in accordance with existing commonly used methods. It was established that the growth regulators Vermimag and Vermiodis influenced field germination, leaf area and photosynthetic activity of sunflower agrocenoses and the productivity of the culture. The highest rates of the leaf area increment in the flowering phase (54.8 thousand m2/ha, or 14.7 thousand m2/ha more than in control) were under the pre-sowing treatment of seeds of hybrid NC Brio with the growth regulator Vermiodex at a rate of 4 l/ton and spraying plants in the vegetation period with the same preparation twice at a rate of 4 l/ha. In this variant, the photosynthetic potential of crops was 2.874 million m2/ha per day, or 0.662 million m2/ha more compared with the control. The studies have shown that on average over the years of research the best yield gains were observed and exceeded the control in the variants of joint pre-sowing treatment of seeds and single-time spraying with growth regulator Vermiodis by 9.7-12.6%, under two-time spraying by 14.2-16.4%.
Authors and Affiliations
В. М. Сендецький
Keywords
Related Articles
- EP ID EP596035
- DOI -
- Views 60
- Downloads 0
Organization and conduct of environmental insurance in Ukraine
The article considers methodological issues of environmental insurance in Ukraine, its role and place in ensuring environmental safety. The foundations of relations are determined when concluding environmental insurance...
The influence of linear belonging of mothers on productive longevity of their daughters
There is the analysis of the indicators of productive longevity of cows of dairy breeds depending on the lines of their mothers in the article. It is found out that in animal selection we should take into account the lin...
Character of productivity formation in wheat varieties of different types of development under different growing conditions
The article presents the results of studies on the character of yield formation in typical winter wheat and alternative (spring-winter) type varieties. It proves that for obtaining a stable grain yield in the southern Uk...
Formation of productivity of hybrids of tomato СХД-277 depending on mineral nutrition in conditions of irrigation of the south of Ukraine
The article describes the material on the study of formation of productivity of tomato hybrid SHD-277 depending on the background of mineral nutrition in the conditions of drip irrigation in Southern Ukraine. Based on th...
Agroeconomic aspects of optimizing the technology of growing onions in the South of Ukraine
The article presents the results of studies on the productivity of onion depending on irrigation regimes and plant protection schemes against pathogens when growing the crop in the system of drip irrigation in Southern U...