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Mineral Requirements. Name the factors or substances needed for plant growth What process is involved absorbing plant nutrients from the soil? In what form are these absorbed?. Objectives: *List the requirements for plant growth ** Describe the need for named minerals in plant growth
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Mineral Requirements Name the factors or substances needed for plant growth What process is involved absorbing plant nutrients from the soil? In what form are these absorbed? Objectives: *List the requirements for plant growth ** Describe the need for named minerals in plant growth ***Compare application of artificial and natural fertilisers 4. What food group plants make? What other food group is vital for their growth? 5. What difference is their in their composition? 6.How do plants get this element?
FertilisersWhy are they used? NPK ? The proportions are shown on a bag of fertiliser 25:0:16 . What does it mean?
Explain: 1.Farmers spread animal manure on their fields 2.If same type of crop is grown in the same place every year, it will gradually grow less well and become stunted, with yellow leaves 3. If fertlisers get washed into ponds and lakes they cause water pollution by algal and weed growth