This article reviewed the results of analysis of a balance of nitrogen, phosphorus and potassium in chernozem (typical black leached soil of Belgorod region) after two crop rotations by different cultivation technologies of agricultural crops. The balance of nutritional elements has been calculated and the optimal agro technology for deficitless balance of plant nutritional elements determined
In the main collectors in the North-West Caspian we have found the concentration of priority chemical elements: in water - Zn, Cu, Mn, Co, B, Mo, Cr, Ni, Pb; in sediments - Zn, Cu, Mn, Cr, Ni, Pb. It was found that a common and characteristic feature of drainage water is a low concentration of these elements investigated (except Mn, B, Pb). In the bottom sediments collectors content of gross forms of Zn, Cu, Mn, Ni, Pb and mobile forms of Zn, Cu was below the MRL and the content of the gross forms of Cr and Mn mobile forms was a little higher
In this work we examine the type of inheritance, number and force of the genes participating in determination of a quantitative attributes of length, width of grain, weight of 1000 grains at hybrids from crossing of the Iranian variety of rice Ambarbu with varieties of Virazh and Boyarin. It is established, that distinctions between samples of length of grain made 3 pairs of genes, of width of grain – 1 pair genes, of weight of 1000 grains – 2-3 pairs genes
The article provides a review of biological traits that could be useful for selection of the walnut in diverse conditions of its growth. The most important aspects of species biology are described as they are of primary importance for breeding programs in the countries with
walnut crops
This article describes quantitative evaluation of add-ing succinic acid in the bran substrate when cultivating Pseudomonas fluorescens
There was described the history of rice growing branch formation on Kuban from thirties to eighties of XX century: from first sowings to the production of a million ton of rice. The role of academician E.P.Alyoshin in the development of Kuban rice growing was marked. There were shown the ways of rice harvest increase on Kuban at present time
Different liquorice’s dosage as additive to main diet influence on chicken-broilers quality and productivity is studied in the article. According to the results, it was established that liquorice addition use in chicken-broilers’ fattening diet during 42 days provided chick-en-broilers gain increase and fodder consumption decrease per 1 kg of the gain increasing, therefore, production economic efficiency
The article is dedicated to the problem of full-value rations for farm animals and poultry at the expense of the use of different fat additives. We have also discussed the prospect of dry palm oil usage in geese feeding
An important stage of breeding work on the development of new varieties is to test these varieties in the regions for which they are created. Optimum growing season is one of the adaptive properties of varieties, needed to cultivate them in certain circumstances
Results of a complex assessment of hybrids of an apple-tree of new generation are given in article. The short characteristic is given to the best forms. Samples for various selection programs are allocated.