Agriculture › Soils & Inputs

Consider the following organisms

1. Agaricus
2. Nostoc
3. Spirogyra

Which of the above is/are used as biofertilizer/biofertilizers?

In the context of food and nutritional security of India, enhancing the 'Seed Replacement Rates' of various crops helps in achieving the food production targets of the future. But what is/are the constraint/constraints in its wider/greater implementation?

1. There is no National Seeds Policy in place
2. There is no participation of private sector seed companies in the supply of quality seeds and planting materials of horticultural crops
3. There is a demand-supply gap regarding quality seeds in case of low value and high volume crops

Select the correct answer using the code given below.

What can be the impact of excessive/inappropriate use of nitrogenous fertilizers in agriculture?

1. Proliferation of nitrogen-fixing microorganisms in soil can occur
2. Increase in the acidity of soil can take place
3. Leaching of nitrate to the ground-water can occur

Select the correct answer using the code given below.