00595 a2200193 4500 631.585 DOU 22066 34627 Douglas, J. Sholto Hydroponics the bengal system with notes on other methods of soilless cultivation 5th ed New Delhi Oxford University Press 1951 1975 xvi,185p. 19cm Agriculture and related technologies Soilless culture Special method of cultivation Cultivation and harvesting Specific techniques L 49476 49476 0 0 0 0 LEN MKDL MKDL LEN 2009-08-11 1 631.585DOU 52556 2023-08-31 00:00:00 2023-07-24 0.00 2016-10-31 L