The effect of insecticides, species diversity and nitrogen fertilizer on insect infestation and yield of cotton [microform].
| প্রধান লেখক: | |
|---|---|
| বিন্যাস: | Visual Material |
| ভাষা: | English |
| প্রকাশিত: |
Quezon City
Photoduplication Service, University of the Philippines Library
1977.
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| বিষয়গুলি: |