Regarding the reclamation of saline soils, which of the following statement is/are correct?
• The salts are to be leached below the root zone and not allowed to come up. However this practice is somewhat difficult in deep and fine textured soils containing more salts in the lower layers. Under these conditions, a provision of some kind of sub-surface drains becomes important. • Flooding and drainage are to be repeated 5 or 6 times, till the soluble salts are leached from the soil to a safer limit. • Intermittent flooding is more efficient than continuous ponding. • Scrape the salt layer on the surface of the soil with spade.
…………..is the nematode that causes the blackhead disease in banana crops?
ALUS (Alternate land use system for Class II, III)
Chemiosmotic theory was first put forward by
Bunchy top of banana disease is transmitted by
Nutrient index approach of soil fertility evaluation was proposed by
The mixture of breeding lines having the same genetic constitution, but differing at a specific locus is known as
Match list I with list II
Terrestrial radiation is measured by:
Which of the following statement is false?
Photolysis of water is associated with