Detailed Explanation of Efficient Broccoli Cultivation Techniques to Help You Achieve Stable Yields and Increased Income

Broccoli, also known as green cauliflower, tender-stem cauliflower, or broccoli, is consumed for its emerald-green heads composed of tender flower stalks and buds. It is not only tender, delicious, and highly nutritious, but also highly adaptable and easy to cultivate, making it a promising high-grade vegetable with nutritional and health benefits. Its main cultivation techniques are:

Cultivation Season

Broccoli can be cultivated in both spring and autumn. For spring cultivation, seeds are usually sown in cold frames in mid-to-late January, with a seedling period of 50 to 60 days, transplanted to open fields in mid-to-late March, and harvested starting in mid-to-late May. For autumn cultivation, seeds are sown and seedlings raised in early-to-mid July, transplanted to open fields in early-to-mid August, and harvested in mid-to-late October.

Land Preparation, Fertilization, and Transplanting

Broccoli has strong growth vigor and high fertilizer demands, so basal fertilizer must be applied generously in conjunction with land preparation. Typically, per mu, apply 5000 kg of high-quality barnyard manure, 500 to 1000 kg of decomposed dried night soil, 30 to 40 kg of superphosphate, and 50 kg of plant ash. After spreading the basal fertilizer, plow deeply and harrow finely, then level the land and make flat beds 1.3 to 1.5 m wide. Transplant when broccoli seedlings have grown 5 to 6 true leaves. Usually, 2 rows are planted per bed, with a plant spacing of 30 to 40 cm and a transplanting density of about 2500 plants per mu. Early-maturing varieties can be appropriately planted more densely, with about 3000 plants per mu being suitable.

Fertilizer and Water Management

Broccoli prefers fertile soil and adequate water. Timely topdressing and watering in stages are key to high quality and bumper harvests. Topdressing should be mainly nitrogen fertilizer. During the head formation stage, appropriately increase phosphorus and potassium fertilizers to promote rapid head growth. Broccoli's terminal heads and side heads are harvested multiple times, and after each harvest, timely topdressing is needed to promote side head growth. Broccoli has high water requirements. During the rosette stage and head formation stage, water promptly to maintain soil moisture. In rainy areas or seasons, drain promptly to avoid waterlogging that can cause root rot.

Harvesting

Broccoli is best harvested when the terminal head on the plant has fully expanded and the buds have not yet opened. Harvesting too late can easily cause the head to loosen and flower. When harvesting, cut off the head together with about 10 cm of the stem below it. After the terminal head is harvested, the axillary buds on the plant sprout and rapidly grow side branches, and heads form again at the tips of these side branches, namely side heads. When the side heads grow to a certain size and the buds have not yet opened, they can be harvested again. In this way, harvesting can usually continue for 2 to 3 times.