Question
The reaction of a soil refers to its acidity or
alkalinity. It is acidity or alkalinity. It is an important indicator of soil health. It can be easily measured and is usually expressed by the pH value. i. Most soils are in the pH range of 5 – 8, while the range for plant growth is within pH 3 – 10. ii. Unfavourable high pH values, as observed in alkali soils, can be decreased by amendment with materials such as gypsum, elemental S or iron pyrites. iii. pH of 7.5 – 8.5 is generally called the neutral range. iv. Plants are generally more sensitive to strong alkalinity, where the dominant cation is often Na, than to strong acidity where the dominant cation is H. Out of the following which combination of statements are correct?Solution
Statement (iii) is incorrect. pH 7 is considered neutral, and the range 7.5-8.5 is slightly alkaline.
Major pest of rice during milking stage is:
According to Rangarajan committee which of the following shows the poverty threshold line?
The market where the produce is either finally disposed off to the consumer (or) processors (or) assembled for export is called as
Cauliflorous bearing habit i.e fruits are borne on trunk and branches, is found in which horticultural crop?Â
Which type of silk is spun from open-ended cocoons and is produced by Philosamia ricini, which mainly feeds on castor leaves?
Which grain can a gluten intolerant person safely consume?
When Marginal cost is at lowest, Marginal product will be:
What is the deficiency symptom for Magnesium in plants?
Soil physical property which cannot be changed of altered is:
…………………… has been used as a synonym of heterosis. It is generally agreed that ……………….. describes only the superiority of hyb...
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