| What Elements do Plants need for Survival? | -Nitrogen
-Potassium
-Phosphorus |
| What do Fertilisers Achieve? | -They allow the Elements needed for Plant Growth [Nitrogen, Potassium and Phosphorous] to be more Abundant or simply be Replenished
-This boosts the Crop Yield |
| What are the Disadvantages of Fertilisers? | -They can Damage the Environment, as it Negatively Affects Ponds, Rivers and Lakes which is something Species live in / Rely on |
| What does Pest Control Achieve? | -This helps to Kill Pests eating the Crops, meaning a Larger Yield can be Obtained |
| Describe and Evaluate Pesticides | -This is simply a Form of Chemical Pest Control, where its just Sprayed onto the Crops, that will Kill any Pests that Damages it
-They can be Poisonous to Humans, hence why its in a Short Amount
-Pesticides can damage other Wildlife, as again its Toxic
-Pesticides can also Travel up the Food Chain, which Kills the Organisms up in the Food Chain |
| Describe and Evaluate Biological Control | -This is simply using Other Organisms to Limit the Number of Pests
-This can be done from Adding new Species, or just Boosting the Population of Current Ones
-Predators, Parasites and Disease-Causing are the Best Options
-This has a Long Effect, and is Less Harmful but Introducing a New Species can lead to more Problems [Red Squirrels have made Population of Grey Squirrels plummet]
-But Overall, its more Safer compared to Pesticides, as no Chemicals is Used, meaning Less Pollution and Risk for affecting Animals and Humans |
| What are Hydroponics? | -This is where Plants are Grown, but without Soil [Instead its Nutrient Solutions
-Said Plants can have their Roots being Dangling into the Solution, or be planted via a Growth Medium like Gravel, Coir or Perlite |
| Where would you use a Hydroponic for? | -They can be seen for when its Hard to Grow that Crop using Soil that has Harsh Climates |
| What are the Disadvantages of using Hydroponics? | -It needs a Lot of Fertilisers, meaning their Risks come into Play
-It is very Expensive in terms of Setting Up and Maintaining
-Diseases entering in can be Catastrophic for the Plants, as it will Spread Quickly |
| What are Genetically Modified Crops? [GM Crops] | -GM Crops are simply Crops that has had their Genes modified through the use of Genetic Engineering |
| What can some of the Characteristics be in a GM Crop? | -Insect-Resistant: In the Name really, this can Increase the Crop Yield as less is being Eaten / Infected. Also means Less Pesticides is Used
-Virus-Resistant: Meaning that Diseases won't really Affect the Crops, so the Risk of Famine is Lower
-Herbicide-Resistant: Farmers can just Dump it all over the Crop, and nothing will happen to it [Herbicides kill Weeds, but can affect Crops with no Resistance]
-Adaptive to Extreme Weather: Allowing the Crops to be better Prepared can Increase the Crop Yield |
