agri science 24/9 Word Scramble
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| Term | Definition |
| crop rotation | when different crops are lantedin a defined sequence. This prevents a build up of pests and diseases. It also encourages nutricient management |
| direct control | when the chemical is used to kill the weed, pest, or fungi. |
| indirect control | the chemical does not kill the weed or pest, but discourages their growth. |
| biological control | to use a living organism to contain/control or kill the pest causing a problem ie. ladybird and the aphet. |
| herbicide | a chemical that kills only weeds and other plants. They can be non selective or selective. |
| pesticide | a chemical that kills only pests , insects or rats usually. |
| fungicide | a chemical that only kills or inhibits that growth of a fungi. |
| the plough | used to break up and turn soil usually for seed bed preperation. |
| organic farming | does not allow the use of genetically modified crops or organophosphates ie. main herbidies, pesticides and fungicides. |
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