Разширено търсене
Ключова дума да съдържа plant residues
Каталог "Статии" | Списание
Compared study of plant residues and organic fertilizer on yield of ryegrass
(2009)
Zdravka Petkova; Evgenia Tosheva; Ivailo Valchovski
Каталог "Статии" | Списание
Content of labile forms and plant residues in cultivated soils
(2009)
Ivan Panchev