The past two decades have seen rapid advances in the technology used to produce pot plants. Glasshouses designed and orientated to give maxi mum light transmission, fully automatic heating and ventilating systems, carbon dioxide enrichment of the atmosphere, controlled photoperiods using automatic blackouts and incandescent lamps which enable plants such as chrysanthemum to be flowered at any time of the year, mist propagation techniques, chemical growth regulators which control the height of plants, automatic watering and ...
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The past two decades have seen rapid advances in the technology used to produce pot plants. Glasshouses designed and orientated to give maxi mum light transmission, fully automatic heating and ventilating systems, carbon dioxide enrichment of the atmosphere, controlled photoperiods using automatic blackouts and incandescent lamps which enable plants such as chrysanthemum to be flowered at any time of the year, mist propagation techniques, chemical growth regulators which control the height of plants, automatic watering and feeding systems, etc.: these are only some of the developments which have transformed pot plant culture. There have also been many changes in the composts and systems used to grow the plants. Mineral soils, which formed the basis of the John Innes composts, are now either too expensive or too difficult to obtain in suitable quality and sufficient quantity. Consequently the grower has been forced to seek other materials such as peat, perlite, vermiculite, plastic foam, shredded bark, etc. New types of fertilizers, new methods of heat sterilization and new chemical sterilizing agents are also being used."
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Add this copy of Media and Mixes for Container-Grown Plants: a Manual on to cart. $52.12, good condition, Sold by Anybook rated 4.0 out of 5 stars, ships from Lincoln, UNITED KINGDOM, published 1988 by Unwin Hyman.
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Seller's Description:
This is an ex-library book and may have the usual library/used-book markings inside. This book has hardback covers. Clean from markings. In good all round condition. Dust jacket in poor condition. Please note the Image in this listing is a stock photo and may not match the covers of the actual item, 650grams, ISBN: 9780046350161.
Add this copy of Media and Mixes for Container-Grown Plants: a Manual on to cart. $190.99, very good condition, Sold by Crestview Books rated 5.0 out of 5 stars, ships from Westerville, OH, UNITED STATES, published 1988 by Unwin Hyman.
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Seller's Description:
Very Good in Very Good jacket. Size: 9x6x1; Books are carefully sealed in waterproof mailers and then boxed to prevent damage during transit. Gently used, almost new hardback and jacket except for a few minor spots on the front page block. No discernible shelf wear. No owners' names or labels. Dust jacket is enclosed in a clear protective cover. Text is clean, unmarked. (Shelf location: A7)
