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Effect of rye and vetch green manures on the microflora, nitrates and hydrogen-ion concentration of two acid and neutralized soils

Tipul înregistrării:	Text tipărit: monografic
Autor:	Smith, Nathan R.
Autor alternativ:	Humfeld, Harry
Editura:	U.S. Government Printing Office
Locul publicării:	Washington
Anul Ediției:	1930
Descriere:	25 p.
Limba:	Engleză
Subiect:	flora
Subiect:	nitraţi
Cota topografică:	II 2310

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