A study was done to figure out which nutrients are most important for growing rice and wheat in a specific area in Chhattisgarh. They found that not having enough nitrogen, phosphorus, and sulfur in the soil can reduce rice yields by over 50%. By adding the right amounts of these nutrients, along with zinc, wheat yields increased by 34% compared to traditional farming practices. This shows that giving crops the right nutrients can make a big difference in how much they produce.