A Modern Textbook and Forest Soils

Ecology ◽  
1980 ◽  
Vol 61 (2) ◽  
pp. 441-442
Author(s):  
Jack Major
Keyword(s):  
2018 ◽  
Vol 79 (8) ◽  
pp. 7-10 ◽  
Author(s):  
A. D. Deikina

Analysis of the current trends in the teaching of the Russian language allows to assert the value of the category of values in the educational strategy. In the context of orientation of the textbook to modern requirements the role of the text in the characteristic of language as an expression of value and personal meanings is emphasized. Providing personal and humanistic thinking and the formation of value view of students in the Russian language is more successful on a wide background of text material by stimulating a variety of ways of original work of students. Its predicted results are closely related to the awareness of the value of the Russian language. Attention is paid to the resources associated with the organization of open educational space on the basis of axiological ideas as the leading in the theory of school education and textbook.


The results of long-term research on the influence of main indicators on their agro-resource potential are summarized on gray forest soils of the upper Volga region. For the conditions of the Vladimir Opolie, the probable yield of biomass and the main products of field crops were calculated at different coefficients ofphotosynthetic active radiation (FAR) use. Calculations of the main product yields are made taking into account the distribution of biomass to by-products and crop-root residues. For field crops of the studied crop rotations, the coefficients of precipitation utilization are estimated. They varied from 44 to 71%, depending on the crop rotation culture. On the slope of the southern exposure when cultivating winter cereals and perennial grasses, the main moisture losses were observed in the spring during snowmelt, when growing spring crops and potatoes, they were close in the autumn and spring periods. The sizes of moisture use by crops depending on the fertilizer systems for the creation of 1 C of grain units (g.u.) and from sub-arable layers are determined. In comparison with the liming background, the use of organic fertilizers reduced the water consumption coefficient from 9.6 to 8.5 mm/C g.u., their combination with a single dose of NPK - up to 7.3, and with a double dose - up to 6.8 mm / C g.u. Based on the amount of moisture used by crops, their possible yields are calculated. In spring crops, the amount of precipitation consumed (326-356 mm) corresponds to the use of 2.7-3% of the FAR and provides 54-60 C/ha of grain, in winter rye and wheat - about 4% of the FAR (yield 71-80 C/ha). In perennial grasses for 2 mowing, the moisture consumed is enough to use about 3% of the FAR., in potatoes -1.5%.


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