Optimal Phosphorus and Potassium Levels Boost Black Gram Yield and Profit.
The study looked at how different levels of phosphorus and potassium affect the growth, yield, and profitability of black gram plants. They found that using 40 kg of phosphorus and 30 kg of potassium per hectare resulted in the tallest plants, the most branches and nodules, the highest seed and stover yields, and the best overall growth rates. This combination also led to the highest crop growth rate and the greatest financial returns.