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This study aims to evaluate the long-term impacts of different tillage methods and nitrogen application on soil properties.

Long‐Term Effects of No‐Tillage, Crop Residue, and Nitrogen Application on Properties of a Vertisol

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This study aims to evaluate the long-term impacts of different tillage methods and nitrogen application on soil properties.
Compared 13 years of no-tillage and conventional tillage effects on clay soil properties.
Investigated the impact of crop residue retention vs. burning and varying nitrogen levels (23 and 69 kg N ha−1 yr−1).
Measured organic carbon, total nitrogen, pH, electrical conductivity, and other soil properties.
Highest organic carbon and total nitrogen were in no-tillage with retained crop residues and nitrogen application.
Soil pH was significantly lower under no-tillage compared to conventional tillage.
Exchangeable sodium percentage was lowest in no-tillage with crop residues retained.

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Randomized trial compares soil properties under no-tillage and conventional tillage in clay soils, indicating significant impacts on soil health.

Ram C. Dalal (1989) studied this question.

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Randomized trial compares soil properties under no-tillage and conventional tillage in clay soils, indicating significant impacts on soil health.