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.
Pea, gulmohur, bean, Cassia have ___ type of symmetry and hance they are ____ flowers.
Which major weed species is becoming increasingly resistant to Isoproturon in wheat fields of North India, posing a challenge for effective weed control?
Kisan call centre were launched in
How many kinds of genotypes are possible in Fâ‚‚, if four genes are segregating independently?Â
Under what agricultural circumstances are pest outbreaks most likely to be observed?
Lalit and Shweta are the varieties of:
Match the following:
Dropping of seeds in furrow lines in a continuous flow and covering them with soil is called as-
TZ test is done for ________ of seed.
Which is a common crop which is grown of natural autopolyploid?