Letham Shank Farm - Crops, Machinery and Livestock


Letham Shank Farming Glossary

Common terms used in Agriculture and the Countryside.

Here are the results for - ph

Small insects that feed by sucking the sap from plants. They are the carriers of many viruses that affect a range of plants and crops.

A molecule found in plants that produces carbohydrates from CO2, water and sunlight by photosynthesis. It absorbs mainly red and blue light, giving plants their green colour. The 'waste' product is oxygen. (O2)

A total translocated herbicide. Commonly used in cleaning stubbles or grassland destruction. Roundup is the best known trade name.

A class of insecticide that was originally synthesized during World War II as a nerve warfare agent. Compulsory sheep dipping in the UK exposed many people sensitive to these compounds. Examples of OPs include chlorpyrifos and sarin.

The acidity index of the soil. Various crops perform better at optimum ph so certain crops may be suited to particular fields or areas. ph may be raised (more alkaline) by the application of ground limestone.

An elemental nutrient required for crops. Normally applied as a phosphate.

The process used by plants to convert carbon dioxide, water and sunlight into carbohydrates and oxygen.

A non metallic, trace element which is essential in plant growth. Atmospheric deposition has been adquate to replenish soil reserves until recently when fossil fuel emmissions have been 'cleaned up'. Sulphur (sulfur) must now be applied to crops in fertilisers.

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