Organic farming utilizes crop rotations to encourage fertile soil growing conditions. Sheep and goats one year, followed by cereal crops the next, would be an example. Organic systems believe that human health is closely related to our food , and this connects back to the quality of the soil and growing conditions.Organic farmers try to produce healthy crops from a well-balanced soil. Soil Association rganic standards are a precise guide to how this is achieved. Genetically modified crops are not used and pesticides are avoided. Moving animals to new pastures prevent pest and parasite infestations and this is always better than relying on drug administration. Organic farming avoids the use of artificial chemical fertilisers and pesticides, preferring to encourage a healthy, fertile soil. All food labelled as organic must meet a strict set of standards. The Soil Association symbol is a guarantee of the highest organic standards being achieved. Organic food sales grew by 30% in 2005. Many people buy organic food as they find it tastes better than non-organic produce. Organic vegetables and fruit do grow more slowly and have a lower water content, which helps contribute to deeper flavour. Organic farmers, as far as possible, avoid using unnecessary chemical sprays. Food additives linked to asthma and heart disease are among those banned under organic standards.