Workers in this unit group conduct research into field-crop growing, horticulture, forestry and soils and develop improved methods of propagation, cultivation, harvesting, pest control and related farming activities. Their functions include: conducting research into field and horticultural crops and forestry to develop new and improved methods giving higher yields and better quality; planning and directing forest planting, care and exploitation of forest stands; studying the characteristics, use capabilities and productivity of soils and applying findings to development of improved agricultural, horticultural and forestry practices; advising farmers on farming methods and problems.