A Sustainable Future: Restoring India’s Soil Health

Context

India’s soil health is declining due to excessive urea use, disrupting the NPK balance. Urgent policy reforms and balanced nutrient management are needed to sustain productivity.

Overview of Soil Degradation in India

The situation of soil degradation in India is severe as most of the states are affected by various forms of degradation, such as erosion, salinization, and nutrient deficiencies. States like Punjab, Haryana, Gujarat, Maharashtra, Andhra Pradesh, and Telangana are the most affected ones. The initial problems arose within the Green Revolution process because the massive increase of food production was accompanied by intensive soil farming, namely, the huge growth of soil degradation through the harmful plowing practices.

Causes of Soil Degradation

• Excessive Use of Chemical Fertilizers: The current Indian fertilizer-subsidy system overly promotes the use of urea that causes an imbalance in the nutrient profile of the soil. The Nitrogen Phosphorus Potassium (NPK)-use ratio of soil is on the biased side of nitrogen, with the ratio of 7:7:3.1:1 in 2022, far away from an ideal 4:2:1. This exaggerated nitrogen application results in soil productivity decrease, as well as nutrient runoff and groundwater pollution.
• Lack of Micronutrients: Soil in India often lacks essential micronutrients like zinc, sulphur, manganese, iron, and copper, which were not deficient fifty years ago. The addition of these micronutrients increases the costs of farming making it difficult for the farmers to adapt to sustainable practices without support.
• Poor Irrigation Practices: The improper irrigation leads to the factors like waterlogging and salinization that eventually result in the loss of soil fertility and change in its structure. As reported by the FAO, poor irrigation management is at fault for about 70% of the irrigation water that is wasted. This, in its turn, not only affects the soil health but worsens the water shortage issue.
• Soil Erosion: It is indeed over 53% of the land that is primarily degraded through soil erosion and land degradation (Annex 7). It is not just cutting gullies in fields, but removing topsoil and much of the nutrient elements that have been synthesized over the past million years (FAO, 2001).

Effects of Soil Degradation

• Impact on Food Security: Food security is directly linked with the soil’s condition; an impaired soil will have lesser and lower quality of crops. Loss of arable land due to erosion and degradation would put India into a position where it could not supply enough food to its population.
• Economic Consequences: Soil degradation has a big economic impact with yearly losses in the billions, due to flow of water and reduction in productivity of food. This financial burden affects the agrarian crisis and causes the farmers to suffer financially and be in a debt spiral.
• Environmental Implications: Soil degradation unfolds more environmental issues, such as air and water pollution. Excessive use of chemical fertilizers can lead to nutrient runoff which in turn contaminates water bodies and disrupts aquatic ecosystems.

Solutions to Address Soil Degradation

• Farmer Awareness and Education: One of the most essential things is to learn about the sustainable agricultural practices and its importance. Acquainting them with ecological issues and the advantages of balanced fertilization, organic farming and conservation tillage is the best way to accompany the soil replenishment.
• Technological Advancements: It may save a lot of the soil resources with the help of such technologies as precision agriculture, smart irrigation systems, and remote sensing. These technologies may also help to scarce the use of fertilizers by cutting down waste and shortening work time.
• Policy Reforms: Policy reforms are crucial to curb the ill-effects of the fertilizer-subsidy system and introduce measures to stimulate nutrient balanced use. Schemes like the National Soil Health Card Mission, enabling farmers to receive soil test reports and recommendations for balanced fertilization can improve soil health to a great extent.
• Integrated Watershed Management: One way to reduce soil erosion and to conserve water is by using land contouring and building terraces which are essential management practices of a watershed.
• Community Involvement: Involving local communities in soil conservation efforts is necessary for the environment. Community-led projects are now becoming a strong force toward the maintenance of sustainable practices.

Conclusion

India’s soil health crisis is a complex issue requiring a multifaceted approach. By enhancing farmer awareness, leveraging technology, and implementing policy reforms, India can mitigate soil degradation and ensure sustainable agricultural practices. Addressing this crisis is crucial for achieving food security, supporting the livelihoods of farmers, and contributing to sustainable development goals.

Source: BS

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