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Crop yields
14
Agriculture
11
Field crops
8
Agricultural estimating and reporting
7
Agricultural productivity
5
Grain
4
Rice
4
Statistics
4
Wheat
3
Crops and climate
3
Economic aspects
3
Food crops
3
Mathematical models
3
Plant breeding
3
Plant physiology
3
Yields
2
Agricultural surveys
2
Barley
2
Congresses
2
Fertilizers
2
Genetics
2
Physiology
2
Research
2
Soil productivity
2
Soils
1
Agricultural ecology
1
Agricultural laborers
1
Assimilation
1
Breeding
1
Combines (Agricultural machinery)
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1出版 1982### CRL customization ### ?> ### Add publisher and desc details ### ?>Bhubaneswar : Bureau of Statistics & Economics, Orissa, [1982-v. ; 29 cm.
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2由 Tarasenko, Aleksandr Nikolaevich### CRL customization ### ?> ### Add publisher and desc details ### ?>
出版 1979Novosibirsk : Izd-vo "Nauka," Sibirskoe otd-nie, 1979.147 p. : ill. ; 21 cm. -
3出版 1973### CRL customization ### ?> ### Add publisher and desc details ### ?>Allahabad, National Academy of Sciences [1973?]476 p. 25 cm.
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4由 Larsson, Lisbeth### CRL customization ### ?> ### Add publisher and desc details ### ?>
出版 1997Alnarp : Swedish University of Agricultural Sciences, 1997.1 v. (various pagings) : ill. ; 24 cm. -
5### CRL customization ### ?> ### Add publisher and desc details ### ?>Leningrad : Izd-vo "Nauka," Leningradskoe otd-nie, 1987.95 p. : ill. ; 22 cm.
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6由 Löhr, Erika### CRL customization ### ?> ### Add publisher and desc details ### ?>
出版 1975København : [s.n.], 1975.270 p. : ill. ; 21 cm. -
7由 Cramer, H. H.### CRL customization ### ?> ### Add publisher and desc details ### ?>
出版 1967[Leverkusen, Farbenfabriken Bayer AG, 1967]542 p. 22 cm. -
8由 Versteeg, M. N. (Mark Nicolaas), 1946-### CRL customization ### ?> ### Add publisher and desc details ### ?>
出版 1985Wageningen : Grafisch bedrijf Ponsen en Looijen, [1985]182 p. : ill., map ; 24 cm. -
9出版 1978### CRL customization ### ?> ### Add publisher and desc details ### ?>Ulan-Udė : Bur︠i︡at. fil. SO AN SSSR, 1978.154 p. : ill. ; 20 cm.
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10出版 1966### CRL customization ### ?> ### Add publisher and desc details ### ?>New Delhi, Dept. of Agriculture, Government of India, Ministry of Food and Agriculture, Dept. of Agriculture [1966]124 p. 25 cm.
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11由 Steenhuijsen Piters, Bart de### CRL customization ### ?> ### Add publisher and desc details ### ?>
出版 1995[Wageningen : s.n., 1995]iv, 227 p. : ill., maps ; 24 cm. -
12由 Pawlak, Józef A., 1952-### CRL customization ### ?> ### Add publisher and desc details ### ?>
出版 1985Giessen : J.A. Pawlak, 1985.ii, 96 p. : ill. ; 21 cm. -
13由 Ibrahim, Gamal Mohamed, 1930-### CRL customization ### ?> ### Add publisher and desc details ### ?>
出版 1962Göttingen, 1962.52 p. diagrs., tables. 20 cm. -
14由 Chowdhury, B. K. (Bijoy Krishna), 1920-### CRL customization ### ?> ### Add publisher and desc details ### ?>
出版 1978Santiniketan : Agro-Economic Research Centre, Visva-Bharati, 1978.84 leaves ; 35 cm. -
15出版 1977### CRL customization ### ?> ### Add publisher and desc details ### ?>Moskva : Vses. in-t nauch. i tekhn. informa︠t︡sii, 1977.133 p. : ill. ; 22 cm.
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16由 Biblina, L. I. (L︠i︡ubovʹ Iosifovna)### CRL customization ### ?> ### Add publisher and desc details ### ?>
出版 1960Kishinev : Shtiin︠t︡sa, 1960.185 p. : ill. ; 22 cm. -
17出版 1967### CRL customization ### ?> ### Add publisher and desc details ### ?>New Delhi, Directorate of Economics & Statistics [Govt. of India, 1967]viii, 167 p. illus., maps (on lining papers) 28 cm.
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18由 Singh, Surendra### CRL customization ### ?> ### Add publisher and desc details ### ?>
出版 2005Shillong : Dept. of Geography, North-Eastern Hill University, 2005.v, 100 p. : maps ; 26 cm.Table of contents only
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19由 Karvonen, Tuomo### CRL customization ### ?> ### Add publisher and desc details ### ?>
出版 1988Otaniemi, Finland : Helsinki University of Technology, Laboratory of Hydrology and Water Resources Engineering, 1988.xvi, 215 p. : ill. ; 30 cm. -
20出版 1975### CRL customization ### ?> ### Add publisher and desc details ### ?>[Ujung Pandang] : Kerjasama antara Lembaga Affiliasi dan Penelitian, Universitas Hasanuddin dengan Direktorat Bina Program Tanaman Pangan, Direktorat Jenderal Tanaman Pangan, 1975.xviii, 142 leaves ; 28 cm.