Present situation, problem, prospect and practical implementation program of education and research for efficient utilization and conservation of cultivated lands and appropriate application of agricultural chemicals.
| Соавтор: | |
|---|---|
| Другие авторы: | |
| Формат: | |
| Язык: | English |
| Опубликовано: |
Ibaraki, Japan
University of Tsukuba
1991
|
| Серии: | Education and research for higher agricultural productivity conserving nature and agroecosytem in Asia and the Pacific countries
4 |
| Предметы: |