Soil bacteria are integral to healthy soil for plants to grow without the use of chemical fertilizers.
are indispensable to
举一反三
- Autogenous N-fixed bacteria have the ability to increase the N nutrient nutrients available for plants in the soil
- What is the main chracteristic of plants? A: Without chloroplasts B: Photosynthesis C: Without cell wall. D: Grows in soil only.
- How is food for plants made Food for plants is made ______. A: from water B: from the air in the sky C: from the soil D: from water, things in the soil and air and sunlight
- Which of the following was the advantage of the modern methods of farming? A: It required little or no chemical fertilizers B: It increased food production dramatically. C: It saved a lot of water in farming. D: It made the soil more productive.
- Plants will ( ) in a fertile soil when plenty of sunshine and rain is available.
内容
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___ methods of farming use only natural animal and plant products to help the plants grow healthy, rather than using chemicals.
- 1
Soil fertility is soil productivity, which refers to the ability of soil to produce plant products.
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Soil radiation is the only source of soil heat.
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4. contaminate, contaminated, contamination a. This river is badly by life wastes. b. Soil occurs wherever there is a chemical factory.
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Root rots thrive on poor soil conditions, in which the trees and plants are not growing well and with lower resistance for harsh conditions?