Studies on Long Term Effect of CHEM.FERT. and INM in Rice Inceptisol

2 September 2023 By

Studies on Long Term Effect of CHEM.FERT. and INM in Rice Inceptisol


Rice is one of the most important staple crops in the world, providing sustenance to millions of people. In order to maximize rice production, farmers often rely on chemical fertilizers (CHEM.FERT.) to enhance soil fertility. However, the long-term effects of chemical fertilizers on soil health and the environment are a growing concern. Integrated Nutrient Management (INM) is an alternative approach that aims to maintain soil fertility and productivity through the combined use of organic and inorganic fertilizers.

SEO Meta Title: The Long Term Effects of CHEM.FERT. and INM in Rice Inceptisol

SEO Meta Description: Explore the long-term effects of chemical fertilizers (CHEM.FERT.) and Integrated Nutrient Management (INM) in rice cultivation on Inceptisol soil.

Benefits of INM

Integrated Nutrient Management (INM) offers several advantages over the use of chemical fertilizers alone. By incorporating organic matter into the soil, INM improves soil structure, enhances nutrient availability, and promotes beneficial microbial activity. This leads to increased nutrient uptake by rice plants and improved overall soil health.

Long-Term Study Design

A comprehensive long-term study was conducted to compare the effects of CHEM.FERT. and INM on rice cultivation in Inceptisol soil. The study spanned over a period of ten years and involved multiple experimental plots. Soil samples were collected regularly to assess changes in soil fertility, nutrient content, and microbial activity.

Key Findings

  1. Soil Fertility: The study revealed that INM significantly improved soil fertility compared to CHEM.FERT. The organic matter content in the soil increased, leading to better nutrient retention and improved soil structure.
  2. Nutrient Availability: INM resulted in higher nutrient availability in the soil, particularly essential macronutrients such as nitrogen, phosphorus, and potassium. This ensured optimal nutrient uptake by rice plants throughout the cultivation period.
  3. Microbial Activity: INM positively influenced microbial activity in the soil. Beneficial microorganisms, such as nitrogen-fixing bacteria and mycorrhizal fungi, thrived under INM, contributing to enhanced nutrient cycling and plant growth.

Frequently Asked Questions

1. Is INM more expensive than using chemical fertilizers?

No, INM can be cost-effective in the long run. While the initial investment in organic fertilizers may be higher, the improved soil health and reduced dependency on chemical fertilizers can lead to long-term cost savings.

2. Does INM have any environmental benefits?

Yes, INM is environmentally friendly. By reducing the use of chemical fertilizers, it minimizes the risk of soil and water pollution. Additionally, the incorporation of organic matter helps sequester carbon and mitigate climate change.

3. Can INM be applied to other crops besides rice?

Absolutely! INM principles can be applied to various crops, including cereals, vegetables, and fruits. The benefits of improved soil fertility and reduced environmental impact extend beyond rice cultivation.


The long-term study on the effects of CHEM.FERT. and INM in rice cultivation on Inceptisol soil highlights the superiority of INM in promoting sustainable agriculture. By adopting INM practices, farmers can enhance soil fertility, improve crop yields, and contribute to a healthier environment. It is crucial to prioritize the long-term health of our soils and explore innovative approaches like INM for a sustainable future.