Question

When did the 'All India Coordinated Research Project on Long-Term Fertilizer Experiments (AICRP-LTFE)' start?

• A. 1910
• B. 1950
• C. 1970
• D. 1980

Hint:

The AICRP-LTFE was launched in 1970-71 to study the long-term effects of fertilizer use on soil health and crop yields.
It is one of the longest-running agricultural research programs in India.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
Long-Term Fertilizer Experiments (LTFE) are essential for assessing the sustainability of intensive cropping systems, monitoring soil health changes, and evaluating the long-term impacts of inorganic fertilizers and organic manures.

Step 2: Detailed Explanation:
The All India Coordinated Research Project on Long-Term Fertilizer Experiments (AICRP-LTFE) was initiated by the Indian Council of Agricultural Research (ICAR) during the year 1970 - 1971.
This program was established at several state agricultural universities and ICAR institutes across diverse agro-climatic zones in India.
The main objective of the AICRP-LTFE is to study the long-term impact of continuous application of chemical fertilizers (NPK) and organic manures on:
1. Crop productivity and yield stability over decades.
2. Soil physical, chemical, and biological properties.
3. Nutrient dynamics, balance, and potential deficiencies of secondary and micronutrients.
The project has provided valuable long-term data demonstrating that balanced fertilization combining both organic and inorganic sources is crucial for maintaining soil health and preventing yield stagnation.

Step 3: Final Answer:
The AICRP-LTFE started in the year 1970, which corresponds to Option (C).