储粮新技术有什么用（前辈们总结的储粮科学原理）

The hazards of storage are certainly much less for dry grain than for damp grain but they nevertheless exist.

干燥粮食的储藏损失肯定要比潮粮少得多，但尽管如此，损失也会存在。

Fungal and bacterial spores are universally present on all grain and in the air. Like the grain they are dormant when dry but as they become damp their activity is increased they germinate and produce the moulds and bacteria which taint and then rot the stored grain.

真菌和细菌孢子普遍存在于所有粮粒上和空气中。与粮粒一样，真菌和细菌孢子干燥时也会休眠，遇湿后活性增加，然后萌发并产生霉菌和细菌，污染储粮进而导致储粮腐烂。

Many insects which infest cereals spend part of their life history within the grains and thus can not be detected by an ordinary inspection.

很多昆虫会在其感染的谷粒内部完成一段生活史，常规的检查是看不出来的。

Any material has a characteristic thennal conductivity which measures the rate at which heat passes from warmer to cooler parts.

所有物质都有导热性，即衡量热量从其热端向冷端传导的速率。

Water which has been absorbed into grain is no longer ordinary water. In addition to being no longer free to flow it is of slightly higher density slightly lower specific heat and it exerts a very much lower vapour pressure.

已被粮食吸收的水不再是常态的水，除了不再能自由流动，还具有略高的密度，稍低的比热，并且呈现非常低的蒸气压。

Grain is known to be a living material and since all life is accompanied by some liberation of heat it is natural to suppose that the source of heat is metabolism of the grain itself.

粮食被视为一种生命体，因为其全部生命周期都会伴随热量释放，这很容易想象粮食自身新陈代谢就是一种热源。

Studies were also made in the writer's laboratory of the respiration rates of wheat from which the embryos had been removed by insect attack and of wheat from which the skin had been partially removed by abrasion with carborundum powder.

作者的实验室还针对麦胚已遭虫害破坏和部分表皮已遭磨损的麦粒呼吸速率进行了研究。

CONTENTS

Chap.1 THE HAZARDS OF GRAIN STORAGE

Chap.2 THE PHYSICS OF A GRAIN BULK

Chap.3 WATER RELATIONS OF CEREAL GRAINS

Chap.4 VENTILATION OF STORAGE PLACES

Chap.5 FORCED VENTILATION OF BULK GRAIN

Chap.6 DRYING GRAIN FOR SAFE STORAGE

Chap.7 THE SPONTANEOUS HEATING OF STORED GRAIN

Chap.8 METHODS FOR MEASURING TEMPERATURES IN STORED GRAIN

Chap.9 MEASUREMENT OF CARBON DIOXIDE AND WATER VAPOUR IN THE INTERGRANULAR ATMOSPHERE

Chap.10 MEASUREMENT OF INSECT INFESTATION BY CARBON DIOXlDE PRODUCTION

Chap.11 INSECT INFESTATIONS IN BULK GRAIN

Chap.12 THE MORE IMPORTANT GRAIN INSECTS

Chap.13 MITES AS PESTS OF STORED GRAIN

内容

第1章 储粮损失类型

第2章 粮堆物理特性

第3章 粮粒与水分的关系

第4章 储藏场所通风

第5章 粮堆强制通风

第6章 粮食干燥安全储藏技术

第7章 储粮自发热

第8章 储粮测温技术

第9章 粮堆二氧化碳与湿度测定

第10章 二氧化碳定量法测定害虫感染程度

第11章 粮堆虫害感染

第12章 储粮重要昆虫

第13章 储粮螨类

著作中提及了储粮科学中的多个重要概念，虽谈不上包罗万象，但是对储粮自身特性和环境因素进行了比较全面的论述。可以想象，在1948年，前辈们还没发现环流熏蒸，气调技术、谷冷技术，但是前辈们对储粮进行了全面的基础研究，正是这些基础研究，成就了现代储粮技术的快速发展和应用。

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