בתוך החיפוש שלך נושאים מוצעים
בתוך החיפוש שלך נושאים מוצעים
Soil fertility
31
Soils
15
Fertilizers
10
Soil productivity
7
Agriculture
7
Research
5
Agricultural productivity
5
Soil chemistry
4
Chernozem soils
4
Soil erosion
4
Soil microbiology
3
Agricultural chemistry
3
Agricultural ecology
3
Crop rotation
3
Nutrition
3
Soil formation
2
Biological productivity
2
Composition
2
Corn
2
Ecology
2
Forest soils
2
Humus
2
Mathematical models
2
Plant-soil relationships
2
Plants
2
Soil animals
2
Soil conservation
2
Soil management
2
Soil physics
2
Soil science
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1יצא לאור 1988Pushchino : Nauchnyĭ ︠t︡sentr biologicheskikh issledovaniĭ AN SSSR, 1988.248 p. ; 22 cm.
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2
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3יצא לאור 1977Novosibirsk : "Nauka," Sibirskoe otd-nie, 1977.142 p. : ill. ; 22 cm.
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4מאת Nikitishen, V. I. (Vladimir Ivanovich)
יצא לאור 1990Pushchino : Nauch. ︠t︡sentr biologicheskikh issledovaniĭ AN SSSR v Pushchine, 1990.134, [1] p. : ill. ; 20 cm. -
5מאת Gamzikov, G. P. (Gennadiĭ Pavlovich)
יצא לאור 1991Novosibirsk : "Nauka," Sibirskoe otd-nie, 1991.130, [3] p. : ill. ; 22 cm. -
6יצא לאור 1971New Dehli : Indian Society of Soil Science Indian Agricultural Research Institute, 1971.v.1 (1117 p.) : ill. ; 25 cm.
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7יצא לאור 1940Moskva : Izd-vo Akademii nauk SSSR, 1940-v. : port. ; 27 cm.
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8Taipei, Taiwan, China : Society of Soil Scientists and Fertilizer Technologists of Taiwan,v. ; 27 cm.
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9יצא לאור 1965Sofi︠i︡a, Izd-vo na Bŭlgarskata akademi︠i︡a na naukite, 1965.227 p. : ill. ; 24 cm.
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10מאת Woldetensaye, Asnaketch
יצא לאור 1997Uppsala : Swedish University of Agricultural Sciences, 1997.1 v. (various pagings) : ill. (some col.) ; 24 cm. -
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12מאת Burlakova, L. M. (Lidi︠i︡a Makarovna)
יצא לאור 1984Novosibirsk : Izd-vo "Nauka," Sibirskoe otd-nie, 1984.196 p. : ill. ; 20 cm. -
13מאת T︠i︡urin, I. V. (Ivan Vladimirovich), 1892-1962
יצא לאור 1965Moskva : "Nauka", 1965.318, [2] p. : ill., port. ; 27 cm. -
14יצא לאור 1986Ufa : BFAN SSSR, 1986.172 p. ; 21 cm.
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15
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16יצא לאור 2000[Amsterdam, Netherlands : Royal Tropical Institute], c2000.1 case : ill., maps ; 28 cm. + 1 computer optical disc (4 3/4 in.)
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17יצא לאור 1971Kishinev : Kishinevskiĭ s.-kh. in-t im. M.V. Frunze, 1971.104 p. : ill. ; 26 cm.
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18מאת Nikitishen, V. I. (Vladimir Ivanovich)
יצא לאור 2002Moskva : Nauka, 2002.257 p. : ill. ; 23 cm. -
19מאת Abasheeva, N. E.
יצא לאור 1983Novosibirsk : Izd-vo "Nauka," Sibirskoe otd-nie, 1983.156, [3] p. : ill. ; 22 cm. -
20מאת Magnusson, Margareta
יצא לאור 2000Umeå : Swedish University of Agricultural Sciences, 2000.565 p. : ill. ; 24 cm.