The port city of the Indus Valley Civilization

The minimum area to be delineated for regional planning is _________ ha.

Organic acids developed from organic matter decomposition act as chelating agent may be

A-value technique is used to calculate the original soil supply of:

Mineral which is highly mobile in soils but highly immobile in plants is________?

Vapour Heat Treatment (VHT) is generally used in: 

An association between organisms of two different species in which one is inhibited or destroyed and the other is unaffected is called

The situation in which the phenotype of heterozygote’s falls between those of homozygote’s for two concerned alleles is called

Double cropping in dryland is practiced in areas having

When should Amla plants be pruned to encourage maximum fruit-bearing area?