Care
Watermelon originates from South Africa. It is a desert fruit that contains 92% water along with proteins, minerals and carbohydrates. Watermelons are mainly cultivated in Maharashtra, Karnataka, Tamil Nadu, Punjab, Rajasthan, Madhya Pradesh, and Uttar Pradesh.
Soil
Watermelon grows well in deep fertile and well-drained soil. It gives best results when grown on sandy or sandy loam soil. Water must easily drain off from the soil else the vines are likely to develop fungal infections. Follow crop rotation as continuous growing of same crop on same field leads loss of nutrients, poor yield and more disease attack. The pH of the soil must be between 6.0 and 7.5. Acidic soil would result in withering away of the seeds. While soil with a neutral pH is preferred, it can also grow well even if the soil is slightly alkaline.
Climate
Being a warm season crop, the plant requires ample sunshine and dry weather for production of fruits. In India, since the climate is mostly tropical, all seasons are suitable for watermelon cultivation. However, watermelon is sensitive to cold and frost. Therefore, in parts of the country where winter is severe, watermelons are cultivated after the frost has passed. 24-27°C is ideal for the seed germination and growth of watermelon plants.