(par 2.2.1. 1.4) Photoperiodism (From Wikipedia, the free encyclopedia)

http://en.wikipedia.org/wiki/Photoperiodism From Wikipedia, the free encyclopedia Photoperiodism is the physiological reaction of organisms to the length of day or night. It occurs in plants and animals. Photoperiodism can also be defined as the developmental responses of plants to the relative lengths of light and dark periods. Contents 1 Plants 1.1 Long-day plants 1.2 Short-day plants 1.3 Day-neutral plants 2 […]
(par 2.2.1. 1.4) Photosynthesis – What is it?

Introduction to photosynthesis http://www.eschooltoday.com/photosynthesis/introduction-to-photosynthesis.html Every living creature needs food or energy to survive. Some depend on others for food and energy, whiles others can produce their own food. Plants make their own food, glucose, in a process called photosynthesis. We say that plants can photosynthesise. Photosynthesis and respiration go hand in hand. The result of photosynthesis is glucose, […]
(par 2.2.1. 6. ) Soil Characteristics

http://www.vaderstad.com/en/knowhow/soil-basic The building blocks of soil The soil that is cultivated to create a seedbed only consists to half of solid material, while the remainder consists of pores filled with water or air. Of the solid material, clay and organic material have the strongest influence on the soil and determine its tillage properties. Soil consists […]