Search academic texts

Registration Number

0215U009512, 0111U003076 , R & D reports

Title

To substantiate theoretically and develop models of ecologically-safe integrated systems of weed control in maize and soybean in conditions of forecasting of climatic changes

popup.stage_title

Head

Zadorozniy Viktor Sergiyovich,

Registration Date

11-01-2016

Organization

Institute of feed research and agriculture of Рodillya

popup.description2

The object of research - the level of weed infestation of corn and soybeans; agrotechnical, chemical weed control measures; economic thresholds of harmfulness of weeds; crop yield, quality of yield. The purpose of research - theoretical study, development and implementation of environmentally friendly models of integrated systems of weeds control of corn and soybeans, which provide reduction of 92-95% wideness and increase productivity of agricultural crops on 48-53%. The study was conducted by conventional methods on herbology. Used laboratory-field method - to determine the species composition and quantity of the main weeds; mathematical and statistical - to establish the reliability of mathematical data; settlement and comparative - to establish the yield and economic evaluation of measures of protection of corn and soybeans. Found that a significant decrease in performance was observed in the presence of crops 20 pcs/m2 Chenopodium album L., 25 pcs./m2 Setaria glauca L. Yield soybeans are significantly decreased in the presence of 10 pcs./m2 as Setaria glauca and Chenopodium album respectively 12,7 and 15,1 %. When combined with the introduction of harrowing post emergence corn herbicides wideness reduced to 93-97 %, and soybeans - to 80-86 %. The level of saved yield reached 2,94-3,43 t/ha (51-60 %) on corn and 0,59-0,87 t/ha (33-47 %) on soybean. Reducing rates of herbicides and the herbicide mix to 10-25 %, by adding adjuvants to herbicides, makes it possible to reduce the pesticide load without reducing performance. Net profit amounted to maize crops - 3900-5570 UAH./ha, and the soybeans - 2790-3770 UAH./ha. Profitability - 79-93 and 35-47 % respectively. It was established that in no-till corn yield decrease to 12-16 % compared with plowing. It is noted that when introducing middle row herbicide Roundup max 2,4 l/ha in phases 3 and 8 leaf corn crop reached the level of a stored 3,25-3,46 t/ha and profitability - 119 %. Scientific novelty - developing eco-friendly integrated weed control systems in corn and soybean where herbicides are used, taking into account the species composition of weeds and thresholds of their harmfulness. Pesticide load on the environment is reduced by 25-30 % due to reduced consumption rates of herbicides. A new agroecological substantiation alternating herbicides and the mixed them in crops, preventing the emergence of the resistance of weeds. The effect of no-till on the level of weed-infested crops of corn and its yield. Scope: agricultural enterprises of different ownership.

Product Description

popup.authors

Карасевич Володимир Володимирович
Колодій Сергій Вікторович
Лехман Олександр Валерійович
Мовчан Ігор Володимирович
Рудська Ніна Олександрівна
Чекалюк Таїса Михайлівна

popup.nrat_date

2020-04-02