| nr |
titel |
auteur |
tijdschrift |
jaar |
jaarg. |
afl. |
pagina('s) |
type |
| 1 |
Agricultural ecology. An analysis of world food production systems
|
Vervelde, G.J.
|
|
1981
|
6 |
4 |
p. 350-352
3 p.
|
artikel
|
| 2 |
Agricultural wastes
|
Jacquard, Pierre
|
|
1981
|
6 |
4 |
p. 346-
1 p.
|
artikel
|
| 3 |
Annual cropping systems in the tropics: an introduction
|
Kassas, M.
|
|
1981
|
6 |
4 |
p. 352-354
3 p.
|
artikel
|
| 4 |
Author index
|
|
|
1981
|
6 |
4 |
p. 355-357
3 p.
|
artikel
|
| 5 |
Effect of differently managed legumes on the early development of oil palms (Elaeis guineensis Jacq.)
|
Agamuthu, P.
|
|
1981
|
6 |
4 |
p. 315-323
9 p.
|
artikel
|
| 6 |
Effects of acid precipitation on terrestrial ecosystems. NATO conference series 1:4 ecology
|
Bouwer, H.
|
|
1981
|
6 |
4 |
p. 346-348
3 p.
|
artikel
|
| 7 |
Fertilizers and soil fertility
|
Koepf, Herbert H.
|
|
1981
|
6 |
4 |
p. 343-
1 p.
|
artikel
|
| 8 |
Handbook of tropical forage grasses
|
Hacker, J.B.
|
|
1981
|
6 |
4 |
p. 349-350
2 p.
|
artikel
|
| 9 |
Management of semi-arid ecosystems
|
Dovrat, Amos
|
|
1981
|
6 |
4 |
p. 348-349
2 p.
|
artikel
|
| 10 |
Modelling nitrate behaviour in a small catchment, east Devon, UK
|
Foster, I.D.L.
|
|
1981
|
6 |
4 |
p. 325-341
17 p.
|
artikel
|
| 11 |
Organic agriculture. Economic and ecological comparisons with conventional methods
|
Koepf, H.H.
|
|
1981
|
6 |
4 |
p. 344-346
3 p.
|
artikel
|
| 12 |
Subject index
|
|
|
1981
|
6 |
4 |
p. 359-362
4 p.
|
artikel
|
| 13 |
The Egyptian agro-ecosystem at the end of the eighteenth century — An analysis based on the ‘description de l'Egypte’
|
Stanhill, G.
|
|
1981
|
6 |
4 |
p. 305-314
10 p.
|
artikel
|
| 14 |
Traditional food crop growing in the Yaoundé area (Cameroon) Part II. Crop associations, yields and fertility aspects
|
Mutsaers, H.J.W.
|
|
1981
|
6 |
4 |
p. 289-303
15 p.
|
artikel
|
| 15 |
Traditional food crop growing in the Yaoundé area (Cameroon) Part I. Synopsis of the system
|
Mutsaers, H.J.W.
|
|
1981
|
6 |
4 |
p. 273-287
15 p.
|
artikel
|
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