Convert any numeric values to characters using the num2str function. Use disp to display the string. Use sprintf to create a string, and then display it with disp. Use fprintf to directly display the string without creating a variable.
Watermelons need a long growing season (at least 80 days) and warm ground for seeds to germinate and grow. Soil should be 70 degrees F or warmer at planting time. Sow seeds 1 inch deep and keep well watered until germination.
Boosting the soil's fertility levels before planting watermelon seeds ensures quick germination and seedling establishment. For the best results with watermelons, use 3 pounds of 5-10-10 fertilizer for every 100 square feet of planting space.imply scoop the seeds out of a watermelon, rinse them under water to remove any fruit pieces or fruit juices, and let them air-dry on a paper towel. In general, watermelon seeds stay viable for approximately four years. However, the longer you wait, the lower your chances of optimal germination.