How to manage cauliflower in spring

Day lily, also known as golden needles, lemon day lily, belongs to the lily order, Liliaceae perennial herbs, the root is nearly fleshy, the middle and lower parts often have fusiform expansion. Scape varies in length, pedicel short, many flowers, perianth yellowish, orange, black-purple; capsule obtusely trigonous-elliptic, flowering and fruiting from May to September. It has the effects of hemostasis, anti-inflammation, heat-clearing and dampness, and is rich in pollen, sugar, protein, vitamin C, calcium, fat, carotene, amino acids and other essential nutrients. Mainly distributed in China. Cauliflower has a sweet and cool taste, which has the effects of hemostasis, anti-inflammation, heat-clearing, dampness, digestion, eyesight, calming and so on. It has curative effect on hematemesis, blood in stool, obstruction of urine, insomnia, milk retention, etc., and can be used as a tonic after disease or postpartum.

How to manage cauliflower in spring?

Cauliflower is a fleshy root, and the fertile and loose soil environment is beneficial to the growth and development of the root system. Therefore, timely ploughing is very important. With spring rainfall and warmer temperatures, the soil is easy to harden and weeds are easy to breed.

Ploughing should be carried out on a sunny day in time. From late January to early February, ploughing and loosening the soil for the first time before the spring seedlings are unearthed, first dredge the "guest soil" at the top of the bushes in winter, so as to facilitate the germination of spring seedlings. The interrow ploughing is 10-13 cm deep, rake the soil and remove weeds. After the emergence of cauliflower seedlings, it is appropriate to carry out 3-4 times of shallow ploughing in sunny days. Among them, a shallow hoe after bolting can not only weed but also prevent drought, which is particularly important. Especially when Rain Water was young in the north, the drier the day, the more frequently weeding and loosening the soil, in order to preserve soil moisture and enhance the ability of plants to resist drought.

Four measures for management of cauliflower in spring

As soon as it is propagated, it is propagated and planted.

Cauliflower is mainly propagated by ramets, and the time is from the end of flower bud collection to the time before winter seedling germination, and it can also be a period of time after winter seedling wilting and before spring seedling emergence, but the former is better. Digging seedlings should be as few as possible to hurt the roots, while digging seedlings, while dividing seedlings, while planting seedlings, so that seedlings are prosperous and return to seedlings quickly. Take every 2-3 tillers as a clump, break off from the plant cluster, remove the disease and old roots in the lower part of the rhizome, leaving only 1-2 layers of new roots; then leave the overlong roots 10 cm short, you can use triangular planting, 3 clusters per hole.

The second plane is the ploughing of the soil.

① ploughing soil. Early ploughing can advance the emergence of seedlings for 15-20 days, increase the yield by 2-3 batches of flowers. Before the seedlings are unearthed in spring, gently dig off the top soil with a small hoe. After the target of the bud tip is obvious, use a bamboo stick to pick out the old soil around the buds, dry out the buds, turn green, and refine the seedlings to improve their cold resistance. ② ploughing. Timely ploughing, good ventilation, can increase soil temperature and eliminate weeds. When ploughing, the surroundings should be shallow, and the rows should be deeper.

Three prevention means to control "three insects" (i.e. red spider, white aphid and green stripe) and "three diseases" (i.e. leaf spot, rust and retting root disease)

Red spider can be sprayed with 40% dimethoate emulsion 50 g and 100 kg water, once every 7 days, 3 times in a row. White aphids can be sprayed with 40% dimethoate emulsion and 100 kg water, which can be killed at one time. The green stripe worm bites on the tender leaves and can be destroyed by manual capture sooner or later. Bordeaux solution (0.5 kg of copper sulfate, 0.75 kg of quicklime and 50 kg of clear water) can be sprayed every 7 days for 3 times. After the occurrence of rust, use 95% sodium rust per mu or 65% Dyson zinc 200 grams plus 50 kilograms of water, spray once every 7 days, twice in a row. Retting root disease can be treated with 40% rice blast pure EC 200 g, spray with water 30 kg, once every 5 days, 3 times in a row.

Four chases means to catch up with fat and water.

Ploughing once between rows before spring emergence, with a depth of more than 13 centimeters, and smashing and raking flat mulch and other mulch. The whole fertilizer of available nitrogen, phosphorus and potassium was used for each topdressing.