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营养土旱育苗是培育水稻壮秧的先进育苗方式,已在我省稻区广泛采用。但是,有些农户虽用此法育苗,仍不能育出壮苗。据调查,没有配制好营养土是主要原因之一。可见,营养土质量高低是培育旱壮秧的关键。高质量的营养土应该是“肥、黑、酸、全”。肥:营养土的肥力水平要高,有机质含量要达到8—10％;黑:营养土的颜色要黑,黑色土不仅肥力高,而且还有吸收光能多的特点,有利于提高床温,促进小苗早生快发;酸:营养土的酸碱度要呈偏酸性,pH值应为5—5.5,有利于防止秧苗发生立枯病;全:营养土的营养成分要全,为培育壮秧提供养分保证。
Nutrient soil drought nursery seedlings is to cultivate rice seedling advanced nurturing methods, has been widely used in rice province. However, although some farmers use this method to raise seedlings, they still can not give birth to strong seedlings. According to the survey, one of the main reasons for not preparing nutritious soil is. Can be seen that the quality of nutrition soil is the key to cultivate dry seedlings. High quality nutrition soil should be “fat, black, sour, whole.” Fertilizer: Nutritional soil fertility level is high, organic matter content to reach 8-10%; Black: Nutrient soil color to black, black soil not only high fertility, but also to absorb more light features conducive to raising the bed temperature, Promote the early seedling quick hair; acid: nutrient soil pH to be acidic, pH value should be 5-5.5, help prevent the occurrence of blight seedling blight; All: Nutritional soil nutrients to the full, to cultivate strong seedling provide nutrients Guarantee.