The correct answer is A) Zero Budget Natural Farming.
Zero Budget Natural Farming (ZBNF) is a method of farming that does not use any external inputs, such as chemical fertilizers or pesticides. It is based on the principle of using natural resources, such as cow dung, urine, and green manure, to improve soil health and increase crop yields.
ZBNF has been shown to be effective in improving soil health and conserving water. In a study conducted by the Indian Institute of Science, Bangalore, it was found that ZBNF farms had significantly higher levels of organic matter and nitrogen than conventional farms. The study also found that ZBNF farms used significantly less water than conventional farms.
The Karnataka government has been promoting ZBNF since 2006. The government has set up a number of training centers to teach farmers about ZBNF, and it has also provided financial assistance to farmers who adopt ZBNF.
Here is a brief explanation of each option:
- Organic Farming: Organic farming is a method of farming that uses natural methods to improve soil health and increase crop yields. It does not use any synthetic chemicals, such as pesticides or fertilizers.
- Precision Farming: Precision farming is a method of farming that uses technology to improve the efficiency of agricultural practices. It involves using sensors and other devices to collect data about the farm, and then using that data to make decisions about things like irrigation, fertilization, and pest control.
- Hydroponics: Hydroponics is a method of growing plants without soil. Plants are grown in a nutrient-rich solution, and they are often grown in greenhouses or other controlled environments.
I hope this helps!