الموضوعات المستخلصة من بحثك.
الموضوعات المستخلصة من بحثك.
Agriculture
238
Forests and forestry
140
Tropical crops
131
Forest management
72
Deforestation
68
Soils
63
Research
53
المزيد ...
1
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دورية
2
Washington, D.C. : Smithsonian Institution, 1987
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وثيقة رسمية
كتاب
3
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دورية
4
بواسطة Elliott, Stephen D., Blakesley, David, 1959-, Hardwick, Kate
Richmond, Surrey : Kew Publishing, Royal Botanic Gardens, Kew, 2013
Spanish edition.
Richmond, Surrey : Kew Publishing, Royal Botanic Gardens, Kew, 2013
Spanish edition.
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كتاب
5
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دورية
6
Nugegoda, Sri Lanka : Department of Forestry and Environmental Science, University of Sri Jayewardenepura, 2011
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دورية
8
بواسطة Spears, John
[Washington, D.C.] : World Bank Policy Planning and Research Staff, Environment Department, 1988
[Washington, D.C.] : World Bank Policy Planning and Research Staff, Environment Department, 1988
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كتاب
9
Cali, Colombia : Centro Internacional de Agricultura Tropical (CIAT), 2013
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دورية
10
Washington, DC : American Chemical Society, 1955
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كتاب
11
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دورية
12
13
بواسطة Mortensen, Ernest
Washington : Dept. of State, Agency for International Development Communications Resources Division, Publications and Technical Services Branch, 1964
Washington : Dept. of State, Agency for International Development Communications Resources Division, Publications and Technical Services Branch, 1964
كتاب
14
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دورية
15
16
17
18
بواسطة Thurston, H. David
St. Paul, Minn. : APD Press, American Phytopathological Society, 1998
2nd ed.
St. Paul, Minn. : APD Press, American Phytopathological Society, 1998
2nd ed.
كتاب
20
بواسطة Goodland, Robert J. A., 1939-
[Washington, D.C.?] : World Bank, 1991
[Washington, D.C.?] : World Bank, 1991
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كتاب