The vegetable heart, also known as the vegetable moss, is known as "the crown of vegetables." The variety is rich in resources and has wide adaptability. It can be planted all year round.
First, choose a thoroughbred. The types of early-maturing vegetables include 4919, 4920, and the whole year's vegetable heart; the medium-maturing types include 60-day special green, Baoqing 60-day, and Lvfu 70-day; late-maturing types have late-heart 2, 80 Tiancao heart, March heart and so on.
Second, from the ground preparations. The soil is ploughed and sun dried, and the base fertilizer is applied. Basal fertilizer generally applies 1000-1500 kg of organic fertilizer per mu, 5-10 kg of potassium chloride, or 750 kg of chicken manure and 20 kg of compound fertilizer. The width is generally 1.6-1.7 meters, 20-30 centimeters tall and is turtle-shaped.
Third, timely sowing. Early maturing varieties are suitable for cultivation from April to August, medium maturing varieties are suitable for cultivation from September to October, and late mature varieties are suitable for cultivation from November to March of the following year. Early and mid-maturing varieties are mainly broadcasted; late-maturing varieties are mainly transplanted. Early and mid-maturing varieties should not be sowed late, otherwise it will lead to rapid budding bolting, small vegetable heart, low yield, or even failure; late maturing varieties can not be early sowing, otherwise lead to late bolting, bad quality of cabbage moss. Winter or spring should avoid sowing in rainy, stormy and typhoon rainy weather. Generally about 0.5 kg sowing per acre.
Fourth, field management
1, seedlings Dingmiao: Direct-fated cabbage heart in the cotyledon starting time seedlings, 1-2 times between the seedlings; transplanting cabbage seedlings in the seedlings of nine leaves when combined with seedlings for seedlings Dingmiao. Dingling plant spacing early maturing varieties generally 10 cm 13 cm, medium-maturing varieties 17 cm 20 cm, late-maturing varieties 20 cm 23 cm.
2, a reasonable fertilization: Yi Qin Shi, early application, thin application, top dressing is suitable for quick-improvement complete fat. The heart of the Chinese cabbage is topdressed in the first time when the true leaves are unfolded, with 3-4 kilograms of diluted manure or urea per acre, and three true leaves combined with seedlings to chase once. After that, 5-10 kg of urea and 10-20 kg of compound fertilizer can be applied every 5-7 days. Apply heavy fertilizer at the bud, apply 15-25 kg compound fertilizer per mu. After harvesting the main moss to continue harvesting side moss, topdressing concentrated fertilizer promotes the development of brassicae.
3, water management: protect the soil moisture throughout the growth period. Sunny morning and evening summer rain water; rainy days pay attention to drainage, to prevent flood area water; before winter, drought, irrigation antifreeze, that irrigation is row, not flood irrigation.
Fifth, timely harvest. The harvesting standard is based on the "Qikou Period". Most of the early-maturing varieties only harvest the main moss. In other varieties, the collection of the side moss can be continued after the main moss is collected. On the side of the harvested moss, the main moss was cut at the base of the plant from 2-3 leaves. The two sides of the axillary buds were used to germinate the side of the moss, leaving too many leaves, but the side mosses were numerous but slender and of low quality. After the harvest period is reached, if the temperature is low, it may be 2-3 days late. If the temperature is high, it should be harvested in time.
VI. Pest Control
1. Disease prevention and control: The epidemic disease and downy mildew can be controlled by 600 times of inoculation cream, thiazolycin and manganese Zn. Soft rot and black rot can be treated with 20% of Longkei 600 times and 72% of agricultural streptomycin 3,000 times. Viral disease strictly prevents the infection of aphids. After the disease can be used virus A, phytosanitary spirit, virus and other leaf surface control. Anthrax can be controlled by 75% chlorothalonil and 70% thiophanate-methyl 800 times. Black spot, white spot disease can be controlled by 1500 times 10% or 40% polysulfide suspension.
2. Pest control: Aphids can be sprayed 1500 times with 10% imidacloprid. Pieris calyces and Plutella xylostella can be sprayed at a low larvae age of 500 times or 1500 times higher than that of Bacillus thuringiensis. Yellow striped jumpers can be used 800 times for 48% or 600 times for a shot.
First, choose a thoroughbred. The types of early-maturing vegetables include 4919, 4920, and the whole year's vegetable heart; the medium-maturing types include 60-day special green, Baoqing 60-day, and Lvfu 70-day; late-maturing types have late-heart 2, 80 Tiancao heart, March heart and so on.
Second, from the ground preparations. The soil is ploughed and sun dried, and the base fertilizer is applied. Basal fertilizer generally applies 1000-1500 kg of organic fertilizer per mu, 5-10 kg of potassium chloride, or 750 kg of chicken manure and 20 kg of compound fertilizer. The width is generally 1.6-1.7 meters, 20-30 centimeters tall and is turtle-shaped.
Third, timely sowing. Early maturing varieties are suitable for cultivation from April to August, medium maturing varieties are suitable for cultivation from September to October, and late mature varieties are suitable for cultivation from November to March of the following year. Early and mid-maturing varieties are mainly broadcasted; late-maturing varieties are mainly transplanted. Early and mid-maturing varieties should not be sowed late, otherwise it will lead to rapid budding bolting, small vegetable heart, low yield, or even failure; late maturing varieties can not be early sowing, otherwise lead to late bolting, bad quality of cabbage moss. Winter or spring should avoid sowing in rainy, stormy and typhoon rainy weather. Generally about 0.5 kg sowing per acre.
Fourth, field management
1, seedlings Dingmiao: Direct-fated cabbage heart in the cotyledon starting time seedlings, 1-2 times between the seedlings; transplanting cabbage seedlings in the seedlings of nine leaves when combined with seedlings for seedlings Dingmiao. Dingling plant spacing early maturing varieties generally 10 cm 13 cm, medium-maturing varieties 17 cm 20 cm, late-maturing varieties 20 cm 23 cm.
2, a reasonable fertilization: Yi Qin Shi, early application, thin application, top dressing is suitable for quick-improvement complete fat. The heart of the Chinese cabbage is topdressed in the first time when the true leaves are unfolded, with 3-4 kilograms of diluted manure or urea per acre, and three true leaves combined with seedlings to chase once. After that, 5-10 kg of urea and 10-20 kg of compound fertilizer can be applied every 5-7 days. Apply heavy fertilizer at the bud, apply 15-25 kg compound fertilizer per mu. After harvesting the main moss to continue harvesting side moss, topdressing concentrated fertilizer promotes the development of brassicae.
3, water management: protect the soil moisture throughout the growth period. Sunny morning and evening summer rain water; rainy days pay attention to drainage, to prevent flood area water; before winter, drought, irrigation antifreeze, that irrigation is row, not flood irrigation.
Fifth, timely harvest. The harvesting standard is based on the "Qikou Period". Most of the early-maturing varieties only harvest the main moss. In other varieties, the collection of the side moss can be continued after the main moss is collected. On the side of the harvested moss, the main moss was cut at the base of the plant from 2-3 leaves. The two sides of the axillary buds were used to germinate the side of the moss, leaving too many leaves, but the side mosses were numerous but slender and of low quality. After the harvest period is reached, if the temperature is low, it may be 2-3 days late. If the temperature is high, it should be harvested in time.
VI. Pest Control
1. Disease prevention and control: The epidemic disease and downy mildew can be controlled by 600 times of inoculation cream, thiazolycin and manganese Zn. Soft rot and black rot can be treated with 20% of Longkei 600 times and 72% of agricultural streptomycin 3,000 times. Viral disease strictly prevents the infection of aphids. After the disease can be used virus A, phytosanitary spirit, virus and other leaf surface control. Anthrax can be controlled by 75% chlorothalonil and 70% thiophanate-methyl 800 times. Black spot, white spot disease can be controlled by 1500 times 10% or 40% polysulfide suspension.
2. Pest control: Aphids can be sprayed 1500 times with 10% imidacloprid. Pieris calyces and Plutella xylostella can be sprayed at a low larvae age of 500 times or 1500 times higher than that of Bacillus thuringiensis. Yellow striped jumpers can be used 800 times for 48% or 600 times for a shot.
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