Agriculture grade 10-11, topic: Environmental influences on agricultural practices.
1. Name the environmental factors that effects on agriculture. Temperature. Humidity. Wind. Rainfall. 2. Explain the effects of the following environmental factors on agriculture: Temperature, humidity, wind and rainfall. Minimum temperature - This is the lowest temperature at which plants may still not grow and produce. Germination is poor. Low temperature slows down the movement(translocation) of food in plants. This cause poor growth since the substances are not provided in sufficient. Enzymes controlling physiological reactions are inactive physiology reactive e.g photosynthesis, diffusion, and osmosis. Water in the soil freeze and plant cannot absorb enough water. High temperature- Plants begin to drop, wilt, and die due to too much evaporation and transpiration. The enzymes are denatured (destroyed) when the temperature is high. Humidity-High humidity leads to low evaporation because there is too much moisture in the atmosphere. This result in plants growing well because ...