据《国外科技消息》本年第四期刊载,日本《读卖新闻》报道,日本国立营养研究所加贺绫子研究成功一种菠菜的特殊栽培方法,它与常用的充分施加水和肥料栽培法截然不同,叫做断食栽培法。菠菜含维生素和铁质丰富,但它的缺点是含草酸量多。当大量食用菠菜时,会妨碍钙的吸收,很有可能成为引起肾和尿道结石的主要原因,对幼儿的生长发育也不利。加贺氏研究成功的这种特殊栽培方 According to “foreign science and technology news” published in the fourth issue of this year, Japan’s “Yomiuri Shimbun” reported that Japan’s National Institute of Nutrition Kaga Ayako successful study of a special spinach cultivation method, which is commonly used to fully apply water and fertilizer cultivation Quite different, called the fast food cultivation method. Spinach is rich in vitamins and iron, but its drawback is the amount of oxalic acid. When eating plenty of spinach, it will hinder the absorption of calcium, is likely to be the main cause of kidney and urethra stones, growth and development of young children is also adverse. Kaga’s successful study of this special cultivation side