1. Pre-plant preparation: planting and digging pits for planting, filling pits with organic and compound fertilizers and watering。
(b) cultivation of seedlings: nutrition of seedlings is used, pre-plant seeding is followed by leaching of seedlings until three leaves grow。
3. Fertilizer management: water fertilization needs to be adjusted to the growth phase of pumpkins, especially during periods of fruit expansion。
The whole branch is pollinated: the whole branch is grown with a single cranium branch and is ready to pollute after 40 to 50 days。
5. Salmon harvest: giant pumpkins can be harvested after 60 days。
I. Technology of responsibilation of great purban
One, pre-plant
(1) selection of planting sites: large pumpkins have a suitable growth temperature of 25 - 35°c, with the northern region generally choosing to grow at the beginning of april, and the southern region being able to grow at the beginning of march, to plant them in cold sheds or solar greenhouses。
(2) cultivation pits: the soil is chosen for cultivation of the border or sand, with a depth of approximately 1 m, 1. 5 m long, 1 m wide, 4 m long and 12 m long。
(3) criteria for filling pits: the landfills need to be mixed with sand, grass-grass, pearl rock, etc., to increase soil permeability, and to prevent oxygen deficiency, with 100 kg of organic and 3 kg of compound fat mixed in each pit. The pit needs to be filled slightly above the ground and then watered and ready for planting。
2. Cultivation
(1) the seed of a giant pumpkin is larger, the shell is hard, it is burned with 55°c warm water, it is constantly mixed up to about 30°c, then impregnated for four hours, protected against the wetness of the seed with a wet towel at 25-30°c, and after about 30 hours the seed grows. Owing to the size of the giant pumpkin seedlings, all the nutrients selected to be 15 cm in diameter are primed, water is poured through, 2 cm incubated, seeded, covered, soil moist, placed in an environment of 25-30 °c, and the seedlings can grow in about three to five days。
(2) deplantation: the seedlings grow by three leaves, and the giant pumpkins grow faster, lasting about 15 days, with timely planting. When planting, choose the morning of the sun, remove the nutrients of the seedlings, plant the whole at the pit centre, take care to minimize the damage to the roots and then pour water, and if the temperature is low at night, build small arches to prevent colding during the seeding period。
3. Fertilizer management
During the preplant period, no water is required, approximately 15 days later, the pumpkins begin to climb the chickens, then water fattening the water, which is lower in the preplant period, usually with a kilo of high nitrogen fat, which is to be melted into the water, which is to be watered together, gradually increasing the amount of water used, depending on the growth of the plant, as much as possible, to one per week. It is important to maintain an adequate water supply during the critical period during which high potassium fertilizer will be applied in the latter stages of the melons, promoting the expansion of the fruits and the expansion of the fruits, especially during the 40-day period of pollination。
The whole pollination
(1) entire chicken: the whole branch is predominantly a single chicken, which is left every one metre, and then tops by about three metres, in order to ensure a sufficient number of leaves and to keep the leaves ventilated and luminous, and to reduce nutritional consumption throughout the whole reproductive period by taking care of the reduction of grandchildren and useless flowers. Pumpkin chickens are pressed every 1 metre, promoting root growth of the tuber, providing better nutrition for the plant, and the whole branch tends to grow every 3 days during the boom period, preventing excessive nutrient growth, especially in the early stages of the smelt, where control of the top edge of the plant favours the smelt。
(2) pollination: after planting about 40 to 50 days, the main chicken grows about 7 to 8 metres, choosing the right place to pollinate, preferably at 7 to 9 a. M., choosing the blooming males, tearing out the petals, rubbing them on the head of the female, taking care that the paint is even and avoiding dew and affecting the quality of pollination。
5. Salmon harvesting
Magnificent pumpkins will grow up and should be kept dry with the ground and protected from decomposition at the bottom, preferably by preparing a stairwell in advance, and it is a good way to get air out of the bottom. When giant pumpkins grow up to 60 days, they can be harvested to prevent dry ventilation and can be stored for five months. In the process of carrying them, they are mainly designed to prevent the break-up of the melon, which is detrimental to its preservation。
Ii. Can compound fat make pumpkin bottom fat
1. Combination fats can be used as bottom fertilizer for pumpkin cultivation, but in appropriate quantities。
2. Combination fertilizers, which contain two or more nutrients, have the advantages of high nutrient content, low by-products, good physical properties, etc., and, when applied, have an important role in increasing the use of fertilizers and in promoting high and stable crop production。
