This aims to boost the fertility of soil and keep it moist through established practices.

这方法目的在于通过既有的惯常做法，增加土壤的肥，保持土壤湿。

Crop rotation is one of the oldest and most effective soil fertility control strategies.

作物轮作是调节土壤肥的最古老和最有效的方式之一。

Uprooting these microscopic residents could upset the land's fertility and lead to soil erosion.

将这些微小居民撤走，会干扰土地肥并导致土壤侵蚀。

On the one hand, salts reduce soil fertility and cause damage to crops.

一方面，盐分降低土壤肥，对作物造成损害。

One reason is that they often don't have good training about what to plant, when to plant, or how to keep soil productive.

其中一个原因在于，他们通常都没有接受过良好的培训，不知道应该什么、什么时候，或者怎样保持土壤肥。

The man who had discovered that it could be tilled died of the labour; the man who succeeded him in possession ruined himself in fertilizing it.

发现这块地可以耕作的人是活活累死的；之后的继承人为了增加土地的肥，弄得倾家荡产。

And the animals help to clear weeds and pests from paddy fields, and their waste fertilizes the soil for the next crop of rice.

而这些动物既能清除稻田中的杂草和害虫，其排泄物还能增加稻田肥。

One reason is that they often don’t have good training about what to plant, when to plant, or how to keep soil productive.

其中一个原因在于，他们一般没有接受过较好的培训，不知道什么、什么时候，或者怎样保持土壤肥。

Firstly, overgrazing and intensive cropping are two ancient but destructive practices that lead to the loss of soil fertility.

首先，过放牧和集约化植是两古老但具有破坏性的做法，会导致土壤肥的丧失。

This is a pagan belief that the fertility of the land is equal to the fertility of the ruler.

这是一异教信仰，认为土地的肥等于统治者的肥。

The consequences of this phenomenon include altered ecosystem balance, reduced soil fertility, and increased costs for drinking water treatment.

这一现象的后果包括改变生态系统平衡、降低土壤肥和增加饮用水处理成本。

You increase soil fertility by feeding the soil.

你通过喂养土壤来提高土壤肥。

Gratuitous also are sunshine, wind, photosynthesis, and the fertility of the soil.

阳光、风、光合作用以及土壤的肥同样属于无偿之列。

But those nations were by no means so weak and defenceless as the miserable and helpless Americans; and in proportion to the natural fertility of the countries which they inhabited, they were, besides, much more populous.

但这些国家绝不像悲惨无助的美国人那样软弱无助。此外，与他们所居住国家的自然肥相比，他们的人口要多得多。

Planting and tillage frequently regulate more than they animate the active fertility of Nature; and after all their labour, a great part of the work always remains to be done by her.

植和耕作经常调节而不是激发自然的活跃肥；在他们辛辛苦苦工作之后，还有很大一部分工作总是要由她来完成。

The field has lost its fertility, and I have struggled with successive optimistic plantings of beans and squash and cucumbers and even, hopeful folly on that neglected soil, young orange trees.

这片田地已经失去了肥，我一直在努植豆类、南瓜和黄瓜，甚至在那片被忽视的土壤上植幼小的橙树，充满希望。

Once you throw off those conditions in which coffee has evolved over millennia, it throws off flavor, it throws off the abundance and fertility of the crop.

一旦你摆脱了咖啡发展了几千年的条件，它就会失去味道，失去作物的丰富性和肥。

Eventually, however, the extra work begins to increase output less and less, until additional workers add nothing further to production, because the fertility of the soil is exhausted.

然而， 最终这些额外的工作开始对产出的增长贡献越来越少，直到新增的工人对生产不再有任何贡献，因为土壤的肥已经耗尽。

Two years at a time, our land is in green manure, which is where it's basically regenerating and building fertility, restoring health after many years of arable production.

我们的土地每隔两年就会植绿肥，这实际上是在让土地自我恢复和积累肥，修复多年耕作后受损的健康状况。

If, then, the peculiar distribution of sequoia has not been governed by superior conditions of soil as to fertility or moisture, by what has it been governed?

那么，如果红杉的特殊分布不是由土壤肥或水分等优越条件决定的，那么它是由什么决定的呢？