6.1 Introduction: the problem of providing nutrition information Developments in nutrition research and improved scientific understanding of the relationship between diet and health have led to increasing interest in the nutri￾tional aspects of the food supply. This interest is shared by academics, health professionals, government officials, consumers and the food and supplement industries alike, although not always for the same reasons and generally at dif￾ferent levels of knowledge and understanding. Interest in nutrition, in respect of both total diet and individual foods, is second only to concern about food safety

3.1 Introduction Vitamins are classically defined as a group of organic compounds required in very small amounts for the normal development and functioning of the body. They are not synthesised by the body, or only in insufficient amounts, and are mainly obtained through food (Machlin and Huni, 1994). There are thirteen vitamins: four are fat-soluble, namely vitamins A (retinol)

A. Trichopoulou and A. Naska, University of Athens 2.1 Introduction Documenting and monitoring dietary patterns are priorities in nutritional epi￾demiology, in the planning of national food and nutrition policies and in the evaluation of nutrition education strategies. Early efforts in documenting dietary patterns were focused on identifying the specific nutrients that may be respon￾sible for effects on people’s health, but recently research has expanded towards studying patterns of food intake. Food data are often derived from:

概述（Introduction） 在化学工业生产中所得到的固态产品或半成品往往含有过多的水 分或有机溶剂 (湿份)，要制得合格的产品需要除去固体物料中多 余的湿份。 除湿方法：机械除湿——如离心分离、沉降、过滤。 干燥 ——利用热能使湿物料中的湿份汽化。除湿程度 高，但能耗大。 惯用做法：

1 Introduction: modern mediation and its predecessors The subject of this report, mediation, has been addressed before at conferences of the International Academy of Comparative Law, most recently at the 10th International Congress, held in Budapest in 1978. The Dutch national reporter at that time, Judge

◼ 作物的磷素营养 ◼ 土壤的磷素 ◼ 磷肥 • 作物体内磷的含量 • 磷的生理功能 • 作物磷素失调的症状 • 作物对磷的吸收

6.1 植物必需营养元素 6.2 植物对养分的吸收 6.3 影响植物吸收养分的条件 6.4 施肥的基本原理 6.5 施肥技术

▪ 4.1 土壤的形成和分布 ▪ 4.2 我国的自然条件与土壤分布规律

▪ 2.1 土壤矿物质与岩石的风化 ▪ 2.2 土壤生物与土壤有机质 ▪ 2.3 土壤水分 ▪ 2.4 土壤空气 ▪ 2.5 土壤热量 ▪ 2.6 土壤水、气、热的调节与氧化还原性

一、复混肥料概述 二、混合肥料生产 三、 复混肥料的合理施用