CHAPTER XIII

BILLY TESTS THE SOIL

“DO you suppose, Professor—I mean Billy—do you imagine we can keep the

garden a secret?”

The early Spring day was so lovely that the children were sitting in

the summer house.

“I guess the folks will suspect something,” answered Billy, “when they

see us digging and spading, but they won’t for a moment think of all

we’re planning to do.”

“They can’t help seeing things grow,” Billy went on, “but how little

they’ll expect you to come in some day with radishes and lettuce from

your own garden.”

“You’re just like Feather Flop!” exclaimed Mary Frances.

“Well, I like that!”

“I mean,” Mary Frances caught her breath, “I mean you think only of

the vegetables, and forget that I will bring in a beautiful bouquet of

flowers for the table.”

“Oh, to be sure,” nodded Billy, “but you won’t have either unless we

begin the next lesson. The first thing after making out the list, so

our professor told us, is to understand about the soil. He said that

after knowing what to plant, we must learn how to plant. So let us go

have a look at the soil near the play house.”

In front of the play house, Billy caught up a handful of earth.

“Listen, Mary Frances,” he said, earnestly, “let us examine this

closely. To test the soil is the most important point in gardening, as

you will readily see after you have heard—

GARDEN LESSON No. 3

TESTING THE SOIL

There are very few places where the soil is “just

right” for plants.

In order to find out what kind of soil is in your

garden, you may make a little test by squeezing some

tight in your hand.

Almost any soil, if very damp, will “hold together;”

that is, if a handful is squeezed, it will stay in the

shape of the hand, so do not make the test until two or

three days after a rain, when it will be quite dry.

CLAYEY SOIL

If, in a couple of days after a rain, the soil is

sticky, something like putty, and a squeezed handful

holds together, and shows the marks of your fingers, it

is clayey soil.

Now, if the soil in your garden is clayey, it will

never, never do for plant babies. No indeed!

You see, it holds so close together that the little

roots cannot push it apart, and cannot grow. So to

clayey soil you must add something which will lighten

it up; like sand, or even coal ashes, or stable manure

which contains a large quantity of straw.

Deep digging and forking help a lot, too, in breaking

up the tight hold which clay grains have upon each

other. Sometimes that in itself will make the clay

sufficiently light.

SANDY SOIL

Little plant babies are so delicate that a very sandy

bed would not do for them either, for a rain might wash

away the soil from their roots.

All plants are very particular, and grow best if their

bed is “just right.”

So, if in a couple of days after a rain, a squeezed

handful of your garden soil will not hold together at

all, and sifts through your fingers, heavier material

must be added.

A little clay worked into the sand and run over with a

roller helps; but there is something even better—it is

stable manure.

HUMUS

Stable manure[C] not only helps hold sandy soil

together and lightens clayey soils, but it contains a

very great deal of plant food in the form of humus, and

without humus all the other plant food in the soil is

of very little value to the plant.

WHAT HUMUS IS

I know you are going to ask me what humus is; but first

I want to ask you to think what the soil is. Yes, dirt,

that is right; but dirt came from where?

For the most part from broken and crumbled-up rock, for

this earth was once nearly all of rock.

But dirt or soil is not only rotten and broken and

crumbled-up rock, as you will see in one minute.

Do you remember how the leaves fell off the tree last

Autumn, and how the grass died down? What became of the

leaves and grass?

They died, yes, and turned into leaf mold, which is one

form of humus.

You have guessed right, Mary Frances. Humus is decayed

vegetable matter.

WHAT HUMUS DOES

Humus mixed with water makes humus soup, which is the

very best kind of plant food, and the plant babies love

it. They drink it through their roots, you know.

Not only does humus help with the matter of food, but

it holds moisture in the soil, and in some almost magic

way makes other plant food into a form which the plant

can use.

Of course, you wish to give your plants the best kind

of food, and of course you will want humus.

But suppose you cannot readily get stable manure, or

leaf mold from the woods, why then, you can make humus.

Every day the very things you need to make humus may be

going to waste.

TO MAKE A COMPOST HEAP

Save all the vegetable tops, leaves, grass, etc. Pile

them up and let them decay. When decayed, they are

humus.

Another way to make a compost heap is to dig grass sods

about eight inches square, and make them into a pile

about two feet high, with layers of earth and manure

between, and let stand in the weather to decay. Turn

over when decayed. When wanted for use, cut some down,

knock apart and spread.

You have heard of sowing rye or oats, and “ploughing

the crop under” to enrich the soil; this makes humus

out of the green rye or oats and their roots.

The plant baby and big plants, too, need many different

kinds of food, but the most important is humus.

FOOTNOTE:

[C] Manure should be well rotted, otherwise plants cannot make use of

it, for they must have food that has been “broken down,” so that the

plant roots can take up what they need.

Manure that is rotted has been piled up and left out in the weather

with a board or two for cover to shed water. The pile has been turned

over once a month, and dampened when dry.

The Mary Frances Garden Book; or, Adventures Among the Garden People · 第 6 / 36 章