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Da: liu xing, Nanjing JiangSu, JS, Cina
paperback. Condizione: New. Pub Date :2006-06-01 Pages: 113 Publisher: China Agriculture Press Contents: Imprint Preface. vegetables and nursery basics Why vegetable seedling. Which vegetables suitable nursery planting materials of vegetable crops which 4 seed germination should have what conditions. vegetable seeds before sowing for which deal with how to handle how to determine the sowing of vegetable crops vegetable seedling sowing how should how to control the seeding density 8 how to determine the amount of vegetab.