Competitive effects of Cyperus rotundus L., Echinochloa colonum (L.) Link and trianthema portulacastrum L. on cotton [microform].
| Autor principal: | |
|---|---|
| Formato: | Visual Material |
| Lenguaje: | English |
| Publicado: |
Quezon City
Photoduplication Service, University of the Philippines Library
1977.
|
| Materias: |