The influence of four experimental phage preparations, designed based on non-transducing E. coli bacteriophages on pigs with post-weaning diarrhea studied. The influence of these phages in depending by methods of its applying (per os and intra cutis) on coli-titer and coli-phages titer studied. It is established, that the best survival rate and the clinical condition showed animals treated with the E. coli phage T4-type with lab. number «8» (till 5,52 lg CFU/g at 37-days age) in parallel with an increase in titer of phages (till 5,73 lg CFU/g at 40-days age). Intradermal (intra cutis) method of applying of experimental phage preparations (constructed on basis of phage “6” and phage “8”) showed the some positive effects on correction of negative dynamics of coli-phages titer in control group
The influence on the predecessor, on the time of sowing
and various mineral nutrition levels, on the productivity of
seven cultivars of winter soft wheat of Krasnodar Agricultural
Research Institute selection was investigated. On the
basis of the obtained experimental data and production
audit it was found that all studied cultivars under the total
complex of cultivation technological methods are able to
form the yield of 6-7 t / ha with the payment of one kg of
active ingredient of fertilizer by the grain within 6.50-9.86,
and 8.56- 10.71 kg. Soil was ordinary chernozem with a
low humus content powerful humus content, depending on
the power of backgrounds in the arable (0-30sm) soil layer
is 3,95-4,00%, of mineral nitrogen is 5,9-8,3 mg / kg of
soil, mobile phosphorus is 22,4 - 26,6 mg / kg of soil, of
exchangeable potassium is 330-360 mg / kg of soil. Predecessors
are winter wheat, sunflower, white mustard cultivated
on seeds. The main tillage is resource-saving with
the mulching of 0-10 cm layer. Studied sowing terms are
the 20th of September, the 1st and 10th of October. The
backgrounds of mineral nutrition: 1-without fertilizer
N0P0К0; 2-minimum dose of complete mineral fertilizer
N60P30К30; 3-average dose N90P60К60; 4-high dose N120-
160P90К60. Seeding rate is 5 million germinating seeds per
hectare. The objects of the research were seven winter soft
wheat cultivars of Krasnodar Agricultural Research Institute
selection. We studied winter wheat cultivars with different
combination of biological characteristics and predecessors.
This combination is contributed to the yield growing
from 4,26-5,82 t / ha up to 6,97-7,2 4,26-5,82 t / ha
with the payment of one kilogram of active fertilizer substance with the output of grain within 8,52-12,0kg
EFFICIENCY OF CULTIVATION OF DIFFERENT WINTER WHEAT CULTIVARS IN THE CONDITIONS OF THE WEST CAUCASUS
The influence of the crop rotation type, predecessor and different doses of mineral fertilizers on the yield of two winter wheat cultivars (Lira and Krasnodar 99) was investigated. The investigations were carried out in the North-Kuban Agricultural Experiment Station in two five-crops: grain tillage and grain - grass tillage rotation of prolonged stationary experience. The soil is the black soil, low in humus, powerful, with humus content, depending on the power of nutrition backgrounds in the arable (0-30sm) soil layer is 3,95-4,00%, of mineral nitrogen is 5,9-8,3 mg / kg of soil, of exchangeable potassium is 330-360 mg / kg of soil. It was found that the maximum value of the winter wheat crop structure elements is noticed in the fertilizer systems with complete mineral fertilizer, and the minimum value - with PK and NK. Winter wheat yield depends on the crop rotation of 8-15%; from its predecessor - 15-18% and 27-31% of the fertilizer. Grain quality was generally determined by the dose of fertilizer. High and higher doses of fertilizers contributed to the protein content from 11.7 to 12.3% and fibrin content - 23,5-24,0%. A strong correlation between yield and agronomic methods was determined
In recent years leaf tan spot had dominated into
pathogenic complex of wheat in southern Russia. The
causative agent of this disease is hemibiotrophic
ascomycete Pyrenophora tritici-repentis (Died.)
Drechsler; imperfect state of Drechslera triticirepentis
(Died) Shoem. It causes two different
symptoms in susceptible wheat varieties: chlorosis and
necrosis. Under epiphytotic disease progression crop
losses can achieve 65%. One of the most important
elements of phytosanitary control of wheat cenosis is
scientifically relevant chemical fungicides application.
Biological efficiency of some fungicides against
Pyrenophora tritici-repentis has been estimated.
Research was conducted on the experimental ground
of FSBSI ARRIBPP on the variety susceptible to the
pathogen – Krasnodarskaya 99. Preparations were
tested one time at leaf-tube formation (Z37) phase or
two times: at leaf-tube formation (Z37) and start of
heading (Z51) stages. Double treatment was more
effective than a single one. Fungicides “Amistar extra”
and “Prozaro” have got the high biological efficiency
– 80,7 and 83,7%, consequently, and longer protective
period (up to 40 days) in comparison to every tested
fungicides
In the article we have presented the results of the researches on influence of the ways of main soil tillage and sowing on the water regime agrophyto-cenosis and productivity of maize hybrids of differ-ent maturity classes
In article the review of results formation productivity as well as features bioenergetic and economic efficiency cultivation of mid-season hybrid of corn Valentin depending on the variant of primary tillage (in common Harnes with Luvaram and Titus with Harmony) under conditions of sufficient moisture zone of the Central Ciscaucasia is given.
The article provides the data of the researches of studying of samples of haricots varieties and selection the highest yield for the conditions of the Azov zone of the Rostov region, and also their economic assessment
To solve the problems of full-value feeding for pigs, it is offered to use protein-vitamin-mineral additives as a component of rations. It allows increasing live weight gain, average live weight gain and improving feed conversion efficiency per 1kg of live weight gain
This article presents the data of the research of new
feed additives’ effects on the dynamic of
hematological indexes and milk productivity of cows
Grapes are product of areas. Grape plant is very plastic
and can grow on almost all types of soils except highly
saline, fusion and wetlands. In studies of many
authors, it was indicated the influence of different soil
types and their properties on the growth of the vine
plants, the quality of berries and their products. The
object of study is soils and vines growing on them,
laws and processes affecting the formation of grape
production. Research methods are expeditions, field
and laboratory. The article presents data on the effect
of agrochemical soil properties (pH, solid residue, the
amount of aqueous extract ions, chlorine ions,
alkalinity (НSO3¯), calcium ion, magnesium ion, total
carbonate, active carbonates, nitrate nitrogen, mobile
phosphorus, exchangeable potassium , humus, humus
reserves) on the formation of the harvest of grapes and
wine products (tasting score, the extract, the amount of
phenolic compounds, the amount of organic acids, the
amount of amino acids, metal ions, potassium ions,
sodium metal, magnesium ions, calcium ions, the
amount of metal ions). With the help of statistical data,
we can establish the effect of weather conditions on the formation of 2009-2011 qualitative wines of
Cabernet Sauvignon