"Crops and Soil" Farmland PPT Courseware 2

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"Crops and Soil" Farmland PPT Courseware 2

Is the soil in vegetable fields, slopes, and rice fields the same?

Crops grow with diversity. Since different areas have different climate conditions and the same area has different soil conditions, experienced farmers will plant different varieties of crops according to different soil conditions when planting crops.

experiment

Use your eyes and hands; you can also use a magnifying glass to observe carefully.

Number the soil, place it in three cups, and observe.

three kinds of soil

Loam soils contain approximately equal amounts of sand and clay;

Clay soil contains more clay;

Sandy soil contains more sand;

The three soils have different sand content, clay content and soil color. They are also sandy soils. Some of them contain a slightly larger proportion of sand, and some have a slightly smaller proportion. As long as the sand content is more than clay, it is sandy soil. Although they are all sandy soil, their composition is absolutely impossible. Exactly the same thing with clay soils.

What kind of soil is better for bean sprouts to grow in?

Put the three flower pots in a place with the same conditions, pour the same amount of water on time, and record the growth of the bean sprouts.

Investigate what kind of soil is suitable for the crops in your hometown to grow?

Sweet potatoes, cotton, and wheat like to be dry and are suitable for planting in sandy soil with good water permeability, while rice likes to be wet and is suitable for planting in clay soil with good water retention.

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"Crops and Soil" farmland PPT courseware:

"Crops and Soil" Farmland PPT Courseware Is the soil in vegetable fields, slopes, and rice fields the same? Crops grow with diversity. Since different areas have different climate conditions and the same area has different soil conditions, experienced farmers when planting crops...

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Update Time: 2024-11-26

This template belongs to science courseware E-education edition fifth grade science volume 1 industry PPT template

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