| The role of research when implementing European environmental legislation at the national level |
Abstract
PDF
|
|
J. Bouma |
267-275 |
| Explaining yield gaps on farmer-identified degraded and non-degraded soils in a Sahelian irrigated rice scheme |
Abstract
PDF
|
|
P.J.A. Van Asten, M.C.S. Wopereis, S. Haefele, M. Ould Isselmou, M.J. Kropff |
277-296 |
| Sweet potato yields and nutrient dynamics after short-term fallows in the humid lowlands of Papua New Guinea |
Abstract
PDF
|
|
A.E. Hartemink |
297-319 |
| A comparison of the isotope-dilution and the difference method for estimating fertilizer nitrogen recovery fractions in crops. I. Plant uptake and loss of nitrogen |
Abstract
PDF
|
|
K. Harmsen |
321-347 |
| A comparison of the isotope-dilution and the difference method for estimating fertilizer nitrogen recovery fractions in crops. II. Mineralization and immobilization of nitrogen |
Abstract
PDF
|
|
K. Harmsen |
349-381 |
