agriculture Flashcards
(11 cards)
Abiotic factors which affect soil erosion
wind, rainfall, gradients
biotic factors which affect soil erosion
compaction from cattle, compaction form machinery, lack of organic matter / soil biota
farming techniques which help stop erosion
contour ploughing, mulching, terracing, wind breaks and tied ridging
Ideal soil pH
5.5-7.0
4 components of soil texture
sand, silt, clay and loam
characteristics of too much clay in soil
poor drainage, good nutrients retention
characteristics of too much sand in soil
good drainage, poor nutrients retention
characteristics of loamy soil
holds a sufficient amount of water, good nutrients retention
soil biota
soil organic matter
Abiotic factors which affect agriculture
Climate/weather, nutrients availability, soil texture, pH, soil biota