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Occasional Publication No 3 February 1942
Supplement September 1943
acid acre advisory service agricultural education apples applied autumn beans beet Bordeaux mixture boron brassicas broccoli Brussels sprouts cabbage calcium Canker carrots cauliflower chlorosis colleges commercial Committee composts course crops cultivation disease dust effects experience farm institutes fertilisers film flea beetle flower furrow glasshouse growers grown growth H.E.A. Council H.E.A. Memorandum harvested horticultural horticultural adviser horticultural education important insecticides insects Kodachrome lettuce Long Ashton Luxmoore Report magnesium magnesium deficiency manganese deficiency manure market garden methods Ministry of Agriculture nitrogen normal nutrients obtained onions organiser outfits parthenocarpic peas pests plants plough plum pollination possible potash potassium potatoes practical present problem produced pruning Research Station ripen root sand cultures school gardening season seed growing seedlings shows Silent soil Sound sowing spraying stem substances sugar beet sulphate supplies symptoms teachers teaching tomatoes trace element tractor varieties vegetable weeds winter