The effect of insecticides, species diversity and nitrogen fertilizer on insect infestation and yield of cotton [microform].
| Yazar: | |
|---|---|
| Materyal Türü: | Visual Material |
| Dil: | English |
| Baskı/Yayın Bilgisi: |
Quezon City
Photoduplication Service, University of the Philippines Library
1977.
|
| Konular: |