Pergerakan Air Pada Tanah Berstruktur Halus dan Kasar Akibat Pengaruh Kapur dan Senyawa Humat dari Air Gambut

Abstract

Soil is one of the most important natural resources for agriculture. However, not all soils have optimal potential unless supported by additional inputs or appropriate technologies. Increasingly intensive land use and the shrinking availability of fertile agricultural land have shifted attention toward the development of dryland agriculture, which is generally less fertile but still widely available. The expansion of dryland farming is often limited by the availability of soil water. Water plays a crucial role in plant growth; it is absorbed by roots and transported throughout the plant. In addition to supporting metabolic processes and transpiration, water also functions to dissolve nutrients and transport them to plant roots through soil water movement. According to Black et al. (1965), the rate of water movement through soil is a critical aspect in agriculture. Water infiltration, movement toward plant roots, drainage flow, and evaporation from the soil surface are essential processes that must be well understood to improve soil fertility.