Researchers conducted a field experiment to figure out when to switch to salt-tolerant rice and wheat varieties in sodic soils. They found that using gypsum and growing specific rice and wheat types for a certain number of years is best for crop diversification. After 4 years, the soil's pH levels improved, making it partially reclaimed. They also discovered that growing sweet basil and matricaria together gave higher yields and efficiency compared to traditional rice-wheat systems. Chilli and garlic crops were also profitable and used less water. Sweet basil-matricaria had the highest benefit-cost ratio.