Project Report For Kale Production is as follows.

Kale, Brassica oleracea variety acephala, is a leafy herbaceous biennial or perennial plant in the Brassicaeae family that is grown as a leafy green vegetable. Kale is a non-heading plant with loose, blue-green or purple leaves that can be straight or wavy. Kale is typically planted as an annual plant that is harvested after one growing season and can reach a height of 1 m (3.3 ft). Kale is also known as borecole, non-heading cabbage, or broccoli, and its exact origins are uncertain, however it grows natively in the eastern Mediterranean and Asia.

Kale can be sown directly or raised indoors for transplants. The ideal soil temperature for germination is between 12 and 24 degrees Celsius (55 and 75 degrees Fahrenheit). Kale seeds should be planted after any hard frost threat has passed or in a cold frame before transplanting to their ultimate location. Try to time seeding for a fall harvest so that the plants mature in cool temperatures. 

This usually means seeding in July, although in warmer southern regions, it could be as late as October. Prepare the soil for planting by adding nitrogen to it in the form of bone meal or composted manure. Plant seeds 12 mm (0.5 in) deep, with a space of 3.5 cm (1 in) between plants in a row. Thin seedlings to a final spacing of 45-60 cm within rows.

When seedlings start indoors or in a cold frame have 3-4 leaves and the daytime temperature has reached 10°C (50°F), they are ready to be transferred. Plant seedlings at the final seed spacing (45-60 cm/18-24 in between plants and 0.6 to 1.2 m/2-4 ft between rows). Plant each seedling slightly deeper than before. Plantings can be spaced out over two weeks to extend the harvest. General attention Kale should be watered uniformly, and mulching around plants helps to conserve soil moisture. Because the plants have thin roots, it is best to manually pluck any weeds that grow around them to avoid hurting them.