किस प्रकार की मिट्टी में जिप्सम का प्रयोग करके उसे फसल उगाने के उपयुक्त बनाया जाता है?

Field capacity, with reference to soil-water-plant relationships, primarily refers to the maximum amount of:

The soil classification terms 'Pedocals' and 'Pedalfers' were first introduced by:

Which type of soil typically develops in hot and humid tropical regions?