Crop Rotation - Crop Development In rotation, sorghum takes the place of corn: so ideally it follows a legume (soybean, alfalfa, peas) and is followed by sugarbeet, tomato, potatoes and other crops. When wheat follows sorghum, a lack of Nitrogen can happen and some allelopathic effect is likely: therefore, wheat after sorghum is not suggested. Usually planting dates are later than for corn. Sorghum is a good alternative to corn where availability of water is not so abundant and general conditions are adverse. Nevertheless, the crop is demanding concerning temperature: minimum soil T for germination is 10°C and for growth is 16°C, optimum is 27-28°C. It is important for high yields that in July minimum be 21°C. Like any other crop, grain sorghum will respond to optimum growing conditions and proper timing of management inputs for maximum yields. Understanding how the grain sorghum plant develops is critical for understanding the crop’s needs and planning management inputs for maximum yields. As a Rule, Crop Rotation practices improve the performances of crops. Exploitation of soil fertility is improved, as different crops roots explore different layers of soil and use different nutrients. Structure of soils improves, because residues from crop roots stay at different depths and residues are also different. By varying crops in the same season, farmers can spread equipment demand throughout the season, reducing costs while increasing utilization. Management of weeds, pests, and diseases get easier because different crops have different pests. Sorghum, when in rotation with soybeans, wheat and sugar beet allows for better control of grasses weeds.