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Uploaded: 05.01.2007
Content: 70105135556640.zip (177,88 kB)
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Description

42 pages
Contents.
P.
1. Introduction ........................................................................ 3
2.SPECIFICATIONS landholder. Tomsk
State variety testing stations .................. .4
3.Prirodnye conditions ......................................................... .6
Characteristics of the climate zone ............................................ 6
Temperature conditions ....................................... ....................... 6
Wetting conditions ............................................................... 9
4. Soil ........................................................................... 11
Background ...................................................... ... 16
5. Brief characteristics of the fertilizer .............................. ... 18
Organic fertilizers ...................................................... ... 18
6. The system of fertilizer crops in the rotation ..................... .24
7.Postuplenie nutrients in plants ...... 32
8.Rol individual elements of power
plant life .................................... .33
9.Opredelenie fertilization rates and the calculation of doses
mineral fertilizers in crop rotation ........................ 35
10.Izvestkovanie .............................................. ...... .38
11.Ekonomicheskaya fertilizer efficiency ......... .... 40
12.Zaklyuchenie ......................................................... .41
13.Spisok literature ............................................. 42

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