The various soil types namely vertisols, entisols, inceptisols or alfisols are suitable for growing sorghum. Vertisols with better cation exchange capacity, higher nutrient status and water retention support the good crop. The crop is grown successfully on soil with pH ranging from 5.5 to 8.5. It tolerates salinity and alkalinity. Under good climatic conditions, Sorghum does best on deep fertile soils. It is adapted to poor soils and can grow well on soil where many other crops would fail.
Soil fertility is a crucial factor in the success of Sorghum yield. Factoring in the soils crop history, what was planted in the previous year, is crucial, especially if the previous crop was a legume like alfalfa or soybeans. Knowing the manure application history can also help you understand your soils fertility. Soil nutrient testing is critical in determining the number of nutrients to add by fertilizing. Soil testing starts with proper soil sampling. If the precision application of fertilizer is an option, consider grid sampling. Once soil test results are available, it is important to understand how to interpret the results to best help in maintaining good soil health.
