S

soil classification: in soil surveys, the classification of soils into groups with broadly similar characteristics. COMMENT: Soils are classified according to the areas of the world in which they are found, according to the types of minerals they contain or according to the stage of development they have reached. All forms of soil classification are artificial, however, as soils vary in three dimensions and in time. Therefore, no clear boundaries exist between soil types. Understanding soil classification helps farmers manage land resources effectively, promoting sustainable agricultural practices.

senescence: The process of growing older. Plant senescence. Farmers benefit from understanding senescence for managing crop life cycles and productivity.

SMR: abbreviation Statutory Management Requirement. Understanding Statutory Management Requirements ensures farmers comply with regulations, protecting their eligibility for government payments and subsidies.

sloe: the wild plum Prunus spinosa. Also called blackthorn. Cultivating sloe provides farmers with a resilient crop for hedgerows and wildlife habitats, supporting biodiversity and sustainable farming.

sole crop: a crop grown in a stand with no other crops. Growing sole crops provides farmers with a focused approach to crop management, optimizing yields and quality.

swill: waste food from kitchens, formerly used for pig feeding but banned after the foot-and-mouth outbreak of 2001. Understanding and adhering to regulations on swill use ensures livestock health and biosecurity, supporting farm productivity.

spear: a shoot of a green plant such as asparagus or broccoli. Proper management of spears ensures healthy growth and optimal yields of vegetable crops.

sward: a cover of grasses and clovers which makes a pasture. Properly managing swards ensures healthy pasture growth and livestock productivity, supporting sustainable farming practices.

Solanum: the Latin name for the potato family. Understanding the Solanum family helps farmers manage crop diversity and optimize production, supporting agricultural productivity.

sodium: a chemical element which is a constituent of common salt and essential to animal life. Ensuring adequate sodium levels in livestock diets supports overall health and productivity.