Soil Science

Tillage: It is the manipulation of the soil with tools and implements for loosening the surface crust and bringing about conditions favourable for germination. Tilth: It is the physical condition of the soil in relation to plant growth. • Buck scraper (or) levelling plank – major leveling of field. • …

Soil is a heterogeneous material consisting of three major components: a solid phase, a liquid phase and a gaseous phase. All three phases specifically influence the supply of nutrients to plant roots. The solid phase is the main nutrient reservoir. The inorganic particles of this phase contain cationic nutrients such …

Soil and climate of Horticulture crops The Climate and soil have important role played in growth of the plant. Fruit growers should have knowledge of the effect of various soil and climatic conditions on fruit growing. Horticulture crops cannot be grown in all type of soil and climate. Hence zone wise cultivation …

=>Quartz – SiO2. =>Potash feldspar (Orthoclase) – KAlSi3O8, Soda feldspars (Albite) – NaAlSi3O8 =>Lime feldspar (Anorthite) – CaAl2Si2O8; Albite and anorthite combine to form plagioclase or soda lime feldspars. =>Feldspars are easily attacked by “water containing H2CO3”. The weathering process is called as carbonation. =>Plagioclase weathers more rapidly than orthoclase. =>Orthoclas …

Introduction of Minerals Minerals: A mineral is a naturally occuring, homogenous element or inorganic compound that has a definite chemical composition and a characteristic geometric form. The minerals can be identified by many of their physical properties like colour, lustre, streak, hardness etc. (Introduction of Minerals) · Lustre – general …

Introduction of Rocks Rocks: “Rocks” are defined as the aggregates of one (or) more minerals. Eg: Limestone – aggregation of calcite mineral. Rocks have no definite chemical, morphological composition or definite symmetrical form like minerals. Based on origin, rocks are classified as(Introduction of Rocks) 1. Igneous rocks 2. Sedimentory rocks 3. …