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Friday, 28 February 2014

Friday February 28, 2014

Day 54..

Plant Science:- in todays lesson we learnt about respiration and the compensation point of different factors affecting photosynthesis! In green plants both photosynthesis and respiration occur. In relatively bright light photosynthesis is the dominant process (meaning that the plant produces more food than it uses during respiration). At night, or in the absence of light, photosynthesis practically stops, and respiration is the dominant process and the plant consumes food (for growth and other metabolic processes). The compensation point is the stage at which the plant does no longer utilise o2 and co2.

Crop Productions:- here we looked at what plants need to grow and what helps them to grow - for example fertilisers. Organic manures include pig slurry, cattle slurry, broiler litter, layer manure, 'old' cattle FYM and 'fresh' cattle FYM (Farm Yard Manure). Using fertilisers helps to target specific areas for example Nitrogen - good for leaf and stem (better photosynthesis), Phosphorus - targets the flower and fruit (for a better yield) and Potassium - is great for roots (establishment and growth).

Grassland Management:- today we continued looking at the storage of conserved grass - clamps verses bales. In groups we researched the pros and cons between the two methods and discussed further according to our findings.

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