THE ROLE OF MINERAL FERTILIZERS IN REGULATION OF HARMFUL ENTOMOFAUNAS ON PERENNIAL LEGUME SEED CROPS
The article presents the results of the studies on the effect of phosphorus-potassium fertilizers on the number of main pests of perennial legumes by phases of their development in the conditions of Central Black-Soil Region southeast
Complicated compost is used for recultivation of soils and represents a new direction in practical husbandry and ecology defining the artificial creation of complex mixtures of different wastes of industrial and agricul-tural production, as well as household residues and natural materials for the enrichment of organic and mineral dispersed and colloidal systems with purpose to improving their physical, chemical, biological and ecological functions
The issues of international spread of fruits of long gourd lagenaria and the introduction of it in culture are considered in the article. We have shown how to use it as a vegetable crop and considered varietal diversity of this species. The biological characteristics of lagenaria cultivation as vegetable plants, including peculiarities of the reproductive system have been marked. We have also considered the issues of cultivation and
distribution of long gourd lagenaria (zycca) for food
Surface sewer depends on vegetable cover. Deleting the
vegetable cover (due to cutting, overindulgent fall out
live-stock, fires), wrong plowing up of surfaces (along
declivity) and processing of ground without observance
agronomic rules bring reinforcement of erosions, local
soil washout, origin gully erosions and to increase the
turbidities of the rivers
Balance of heavy metals in the topsoil describes their content at admission and take-out for a specific period of time. Sources of heavy metals in the soil are their admission with atmospheric precipitation, sowing material, dust, organic and mineral fertilizers, as well as other components. Take-out of elements from the soil is taken into account with a crop (grain yield of green mass, roots, etc.), as well as with the removal of water and wind erosion
The article proposes a system of regression equations for estimating industrial wood size by categories and varieties of commercial trunks of oak plantations in the Lower Volga region. The authors developed a table of logs for the taxation of trees and forest stands of oak
Compound compost during its formation involving organic and mineral wastes retains the organic matter by reducing its degradation products with nitrifying and denitrifying organisms due to its economical ex-penditure of phosphorus and calcium, increased am-monia and total nitrogen, formation in the process of development of calcium sulfate with participation in its formation of residue calcium salt and ammonia
The comparative analysis of the condition of green plantings of the city of Voronezh is carried out. The objective differences in the pathogenesis of native and introduced species of forest plants are identified
It is shown that under in vitro conditions, regenerated plants of Lilium caucasicum cultivated in the light of varying intensity and spectral composition didn’t have the same biometric parameters (length and width of leaves) or number of micro bulbs. There were established some specific effects of the two main areas
of photosynthetically active radiation - blue and red on the growth and development of the plants as well as on the content of photosynthetic pigments
There were developed some methods of sterilization and introduction of the following endangered species of Caucasian flora to in vitro culture: Campanula sclerophylla Kolak., Lilium caucasicum Miscz. ex Grossh., Daphne woronowii Kolak., Pancratium maritimum L.. The effect of different plant hormones as well as their combinations and concentrations on the regeneration, growth and development of plants is studied. As a result of clonal propagation, more than 100 plants of Campanula sclerophylla Kolak, about 30 plants of Pancratium maritimum L., and 150 samples of Lilium caucasicum Miscz. Ex Grossh are saved in tissue culture