Question
Color of which of the following soil is red due to
diffusion of iron rather than the pressure of environment?ÂSolution
Red Soil: • Red soil develops reddish colour due to the diffusion of iron in crystalline and metamorphic rocks. • It looks yellow in a hydrated form. • It is highly porous and fertile when they are fine-grained and deep. • This soil is deficient in nitrogen, humus, phosphoric acid, magnesium, and lime but fairly rich in potash, with its pH ranging from neutral to acidic. • Cotton, wheat, rice, beans, millets, tobacco, oilseeds, potatoes, and fruits are some of the appropriate crops for red soils. • Red soil develops on crystalline igneous rocks in areas of low rainfall in the eastern and southern parts of the Deccan plateau. • They are also found in parts of Orissa, Chhattisgarh, southern parts of the middle Ganga plain and along the piedmont zone of the Western Ghats.
Pusa Deepali is a variety of:
Capitate type of antenna are found in _____
Bud scales (cataphylls) are_____ designed for protecting buds (apical or axillary).
Part of the cell wall of endodermal cells prevents water from moving into the cell is calledÂ
Eugenol is the important chemical content of:
The typical pH value of the midgut in most insects is closest to which of the following values?
Microorganisms used for suppression of plant diseases are called as ____
Judicious removal of plant part to obtain better and qualitative yield is termed asÂ
Chlorophyll is the major pigment present in leaves ,Which element is known as a ‘constituent of chlorophyll’?
Out of the following quantity, which is required to irrigate 1.0 ha land area with 50mm depth of irrigation?