1 / 5

Unit 9C and 9D Lesson 6 Fertilizers

Unit 9C and 9D Lesson 6 Fertilizers. Objectives: to explain the importance of minerals to plants, to determine what plant fertilizers are made of, to describe which parts of plants are used by humans and animals. Plant Food. In addition to water and oxygen plants also need minerals to grow.

acton-cummings
Télécharger la présentation

Unit 9C and 9D Lesson 6 Fertilizers

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Unit 9C and 9D Lesson 6 Fertilizers Objectives: to explain the importance of minerals to plants, to determine what plant fertilizers are made of, to describe which parts of plants are used by humans and animals.

  2. Plant Food • In addition to water and oxygen plants also need minerals to grow. • Normally the plant will get its minerals from the soil. • If the soil is poor in nutrients we can add fertilizer to the soil to help plants grow. • Fertilizers have minerals in them necessary for plant growth. • Most fertilizers are called NPK fertilizers as they have nitrogen, phosphorus, and potassium in them.

  3. The Important Nutrients (NPK) • Nitrogen (N): nitrogen is the main nutrient needed for plants. They need it to make their proteins so that they can grow. • Plants that are mostly leaf (like grass) need a lot of nitrogen. • Phosphorous (P): helps the plant grow roots and flowers. • Plants that have grow from bulbs need a lot of phosphorous. • Potassium (K): helps the plant to withstand extremes of weather and to fight disease.

  4. Other Important Nutrients • Calcium: to improve the growth of roots and shoots. • Magnesium: to help seeds grow. • Sulphur and Iron to help maintain a dark green colour.

  5. Work to Do • Read pages 88 and 89. • Answer questions 1-8 page 89. • Homework: • Complete • Define the following keywords: • Nitrogen, potassium, phosphorus, fertiliser

More Related