Seed drill China, and later a seed drill by Jethro Tull that was influential in the growth of farming technology in recent centuries. Even for a century after Tull, hand sowing of grain remained common. In older methods of planting, a field is initially prepared with a plow to a series of linear cuts known as "furrows". The field is then seeded by throwing the seeds over the field, a method known as "manual broadcasting". The seeds may not be sown to the right depth nor the proper distance from one another. Seeds that land in the furrows have better protection from
Drill instructor recruits who fail parts of the course. The sergeant carries a pace stick as a badge of office during parades. In the British Army, the appointment of Drill Sergeant (DSgt) is limited to the five Foot Guards regiments, the Honourable Artillery Company (HAC), Infantry Training Centre Catterick, London District, and the All-Arms Drill Wing (part of the Army School of Ceremonial, Catterick). Drill Sergeants hold the rank of Warrant Officer Class 2. However, any senior NCO conducting drill can be colloquially referred to as a "drill sergeant". There are two Drill Sergeants per battalion (one in the HAC) and they