The article presents the results of studies on the assessment of the influence of the elements of pea cultivation technology on its productivity. It has been established that the cultivation of peas after an unfavorable predecessor reduces grain yield by 13-35 %, and its excessively high concentration in crop rotation and permanent sowing – by 56-96 %. The use of herbicides increases the yield of peas – by 17,0-36,0 %, insecticides – by 19,1-26,7 %, fungicides – by 6,3-16,0 %, microelements – by 8,8-22,7 %, carrying out harrowing of crops – by 9,6 %.  Moldboard plowing and non-moldboard chisel tillage do not significantly differ in their effect on the yield of this crop.

The use of innovative technologies in economic activities without scientific justification can lead to inefficient results. In this regard, it is relevant to conduct scientific research to justify the rational use of automation elements and software. In the article,  we  analyzed  the  data  obtained  as  a  result of  experiments  on  the  use  of  autopilot  in  conjunction with software during soil cultivation. The possibilities of practical use of the software installed on the navigation equipment of the tractor for issuing a task, as well as collecting and analyzing data when cultivating the soil have been studied. The article also studies the dependence of the quality of tillage during cultivation with different methods of movement and varying degrees of auto-control.

Studies carried out in 2021-2022 on sandy loam soil soil in  the  central  part  of  Belarus  showed  that  when  using the herbicides Rodimich, AS (0,75 l/ha) + Bazagran, AS (1,5 l/ha), the optimal seeding rate of alfalfa seeds is 6 million units/ha and does not depend on the previous crops (spring barley or corn for grain). At the same time, when sowing alfalfa after corn with a seeding rate of 10 million units/ ha of germinating seeds, herbicidal protection showed low efficiency.

The paper presents the results of studies on the evaluation of breeding samples and the creation of anthracnose-resistant narrow-leaved lupine varieties. An artificial infectious background was created, selection samples were evaluated for resistance to anthracnose in the field and in the phytotron-greenhouse complex. As a result of multiple selections, resistant varieties of lupine were selected and transferred to the breeding department. Accessions numbered 7, 5 and 6 were the ancestors of the varieties Guslyar (2017), Alliance (2019) and Yaryk (2021) respectively.

The article presents the results of a three-year assessment of the winter wheat collection for resistance to the phytopathogen complex in an infectious and provocative background.  The  results  of  collecting  infectious  material and compiling a collection of clean crops are shown. The example of the yellow spot pathogen shows the determination of racial composition using differentiator varieties. Variety samples of winter wheat with signs of resistance to individual and complex harmful factors, which can be used as sources of  increased  resistance,  have  been  identified.  The  best sample according to the results of a three-year assessment in 2022 was zoned as an Asima variety.

The paper presents the results of the study of the biological and economic efficiency of the herbicide Brucia Extra, OD (tolpyralate, 30 g/l + nicosulfuron, 30 g/l) that is applied in corn at the 2–3 leaf and 4–5 leaf stages. Over two years of the research with the application of the herbicide at the 2–3 leaf stage the number of weed plats reduced on average by 91,3–92,8 % and their weight – by 87,6–88,9 %, and by 92,4–92,6 % and 94,7–96,2 % respectively when it was applied at the 4–5 leaf stage. The preserved yield is higher than the least significant difference with regard to all the variants of the experiment.

The article presents theresearch results on the effectiveness of the protective and stimulating complexes Polyslav, Polyazophos and Polyslav-2. It has been established that during the treatment of vegetative potatoes to suppress late blight as a result of the use of Polislav and Poliazophos, the yield increase of 67,5 centners/ha and 151,7 centners/ha, respectively, was obtained.

It has been established that when seeds of spring barley were treated with Polislav-2 in comparison with the control without treatment for two years out of three, reliable yield increases of 3,0 c/ha (2003) and 2,9 c/ha (2004) were obtained. When seeds of spring wheatwere processed by Polislav and vegetative plantsof spring wheat weretreated by Poliazophos, an increase in yield of 7,0 c/ha was obtained.

The  article  presents  the  results  of  fiber flax breeding in RUE "Institute of Flax". An analysis of the results of the competitive state test made it possible to establish that the yield potential of modern varieties is quite high. The economic evaluation of new varieties makes it possible to judge their high profitability.

Based on the results of many years of research, an assessment was made of the regenerative abilities of 15 cultivars of highbush blueberry and 1 cultivar of lowbush blueberry, introduced in Belarus. It has been established that the rooting rate of blueberry green cuttings is genetically determined and, depending on the taxon, varied on average from 48 to 87 %. Based on the obtained results, blueberry cultivars are classified into three groups: easy rooting, medium rooting and difficult rooting. Blueberry cultivars characterized by a higher ability to rhizogenesis, as a rule, form plants with higher biometric parameters. Varietal features of the rhizogenesis of blueberry green cuttings should be taken into account in the vegetative propagation of this crop.

Based on the studies performed, practical experience in the cultivation of highbush blueberries, as well as the analysis of literary sources, information is presented on various mulching materials, their advantages and disadvantages, the frequency and characteristics of mulching plantings of this crop.