The New Encyclopaedia Britannica, Volume 7Encyclopaedia Britannica, 1974 - Encyclopedias and dictionaries |
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Page 281
... plants of commercial value are henequen , Mauritius hemp , and New Zealand flax or hemp ( Phormium tenax ) . Plants yielding leaf fibres are usually perennials propa- gated by root cuttings or rhizomes ( horizontal sub- terraneous plant ...
... plants of commercial value are henequen , Mauritius hemp , and New Zealand flax or hemp ( Phormium tenax ) . Plants yielding leaf fibres are usually perennials propa- gated by root cuttings or rhizomes ( horizontal sub- terraneous plant ...
Page 902
... plants , it is necessary to protect them from competition with other more - vigor- ous plants by weeding and by other garden operations and to apply to their cultivation principles derived from plant physiology , chemistry , and botany ...
... plants , it is necessary to protect them from competition with other more - vigor- ous plants by weeding and by other garden operations and to apply to their cultivation principles derived from plant physiology , chemistry , and botany ...
Page 904
... plants . Herbaceous plants , which die down annually and have no woody stem above ground , are readily divided into three cate- gories , as mentioned earlier : ( 1 ) Annuals , plants that complete their life cycle in one year , are ...
... plants . Herbaceous plants , which die down annually and have no woody stem above ground , are readily divided into three cate- gories , as mentioned earlier : ( 1 ) Annuals , plants that complete their life cycle in one year , are ...
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