The “Zhaobaicai-late late tomato-living shoot†three-year rotation cultivation mode has achieved high economic benefits and has been successfully applied in this city. The key technologies are summarized as follows. 1, Crops arrangements Summer cabbage is bred from March 25th to April 5th, transplanted in mid-April, harvested in early June, delayed tomato in mid-May, transplanted in mid-June, harvested in mid-October, lettuce 9 Seedlings are raised in the middle of the month, transplanted in late October, harvested from mid-March to April in the middle of the next year. 2. Benefit analysis 667 square meters can produce 2500kg of cabbage, the output value is 1,500 yuan, the production of tomato is 3500kg, the output value is 3500 yuan, the production of lettuce is 1500kg, the output value is 1200 yuan, the annual output value is nearly 6,200 yuan, after deducting the production cost, the pure income of 667 square meters is more than 5,000 yuan. 3. Cultivation points Summer cabbage 1 Variety selection should choose varieties with strong heat resistance and short growth period, such as Sijiwang, Xiaqiuwang, Luchunbai No.1, Xiayang cabbage and so on. 2 Cultivation of strong seedlings From March 25th to April 5th, the pit-type nutrient bowl (bag) was used to cover the small arch shed seedlings. Dig the pit seedbed before planting, and put the nutrient bowl (bag) on ​​the hotbed, pour enough water, then sow, and sow 3~4 grains in each nutrient bowl (bag), use 667 square meters per 667 square meters. 50-75g species, after sowing, a layer of finely sifted fine soil, the gap between the sputum and the sputum is filled with fine soil, and then covered with a small arch shed. After emergence, the seedlings are 1 or 2 times, and the seedlings are fixed at 4 to 5 leaves. After the seedlings are kept, one seedling is kept in each nutrient bowl (bag). When the seedbed is not white, the water is not watered. During the day, the air is properly ventilated. It should be covered with a grasshopper and then covered with a layer of membrane insulation. The seedlings are re-smelted one week before planting, so that they can adapt to the external environment, generally 20 to 25 days old. 3 timely planting before planting will be ploughed and ploughed, according to 1.2m (including ditch) to open the car, 86.7cm car, 33.3cm groove width, 1500 ~ 2000kg per 667 square meters of organic fertilizer, ternary compound fertilizer 25kg As a base fertilizer, transplanted in mid-April, two rows per box, row spacing 60cm, plant spacing 36.7 ~ 40cm, 2700 ~ 3000 plants per 667 square meters planted, timely planted root water. 4 After the field management is settled, the chased decontamination and clear manure water will be chased once. During the rosette period, the concentrated manure water will be chased once, and the fertilizer will be chased once, and 7.5-10 kg of urea per 667 square meters will be used for weeding and weeding twice in the whole growing season. 5 pest control for downy mildew with 25% toxic mildew WP 800 times liquid or 69% ang Mn Zn wettable powder 500 ~ 600 times liquid alternate spray control; black spot disease with 50% dexamethasone 1000 times Liquid or 70% mancozeb wettable powder 500-600 times liquid spray control; soft rot with neomycin medicinal 3000 times liquid to water root; cabbage caterpillar, aphid and yellow curved stripe with 48% music The emulsifiable concentrate 1000 times or 10% imidacloprid wettable powder 2000-4000 times liquid spray control, Plutella xylostella and Spodoptera litura with 5% inhibition of Taibao EC 2500 times liquid spray control. Delayed tomato (mainly sold to Guangdong, Guangxi, etc.) 1 Variety selection Choose tomato varieties that are strong, heat-resistant, fruit-hard, storage-resistant, and high-yielding, such as Zhenxing No. 2, Geshilang, and Red General. 2 Cultivate strong seedlings May 10 to 20 days with nutrient glutinous rice (bags) or cold bed seedlings. 15 days before sowing, the nursery facilities should be disinfected, soaked in 55 °C hot water for 15 min, then naturally chilled and then immersed for 6-8 h, removed and washed, placed at 25 ~ 30 °C to keep moist and germination, until 30% of the seeds are germinated Put it into a nutrient bowl (bag), mix it with 1 capsule, or mix it with a small amount of soil ash and coal ash, spread it evenly on a cold bed, and then cover it with a layer of nutrient soil. Use shade nets or straw to cover the shade when it is hot and dry. Cool down and moisturize, and remove the weeds at any time. 3 timely planting in the middle of June in the middle of the harvest of summer cabbage, timely removal of residual branches and weeds, the land ploughs fine, according to 1.3m (bag ditch) open the car, the width of the car 93.2cm, the width of the ditch 40cm, the height of 20 ~23cm, 3,000-4000kg of decomposed organic fertilizer per 667m2 ditch, 30~40kg of ternary compound fertilizer, then cover the mulch, transplanted by row spacing 66.7cm, plant spacing 40~50cm, 667 square meters planted 2000-2500 plants. 4 After the field management is planted, the root water is poured in time, and after the survival, the seedling fertilizer is applied, and the manure water is mainly used. After the first panicle is stabilized, the top dressing is stabilized according to the soil fertility and growth, every 7 to 10 days. 1 time, a total of 2 to 3 times, seedling stage weeding and weeding 1 or 2 times, when the plant height is 25 ~ 30cm, take the "people" frame, the frame requires 2m or more bamboo frame, each panicle is tied with a vine, using a single stalk Pruning, remove the sick yellow leaves at any time, keep the pastoral clean, timely thinning and thinning, and retain 4 to 6 fruits per ear. 5 Pest Control Late in the late growth period of most tomatoes are in the high temperature and high humidity season, more pests and diseases, must be in accordance with the idea of ​​prevention and treatment, strengthen prevention. Tomato cockroach disease, blight disease with 64% anti-virus 矾 wettable powder 500 times liquid spray control, late blight, leaf mold with Bordeaux mixture (1:1:100) or 58% metalaxyl manganese WP WP 500 Double liquid spray control, blight blight with 77% can kill wettable micron powder 400 ~ 500 times liquid or 25% chromium ammonia copper agent 500 times liquid irrigation root, small tiger with 90% trichlorfon crystal 250g: oil Withered 5kg: fresh grass 80 ~ 100kg mixed into a poison bait, colonized after the colony. Lettuce 1 variety selection Choose adaptable, cold-resistant, disease-resistant and high-yield lettuce varieties, such as spring lettuce, hanging silk red, Luohan lettuce and so on. 2Cultivate strong seedlings in mid-September sowing. The seedbeds should be selected from sandy loam or loam soil with fertile soil and convenient drainage. After sowing the seedling bed before sowing, spread the seeds evenly and cover a layer of thin soil, which is subject to the absence of seeds. After the cotyledons are unfolded, the seedlings are planted, and 2 to 3 true leaves are fixed. The spacing is 3 to 5 cm. The watering period is appropriately controlled to prevent the seedlings from growing. The day before the planting, the seedbed is watered for seedlings. 3 timely planting in mid-October after the end of tomato harvesting, timely tillage, according to 1.3m open compartment, 1m side, ditch width 33.3cm, per 667 square meters of cast organic fertilizer 2000kg, ternary compound fertilizer 50kg as base fertilizer, Three rows per box, the row spacing is 33.3cm, and the root water is leached in time after planting. 4 The field management is planted and survived to catch a decomposed clear manure water. The seedlings are overwintered. After the temperature rises in the spring, the cultivating and weeding are carried out, and the manure water is mainly used for decomposing human and livestock. A small amount of urea is added, once every 10 to 15 days. concentrated. 5 pest control for downy mildew with 58% metalaxyl manganese zinc wettable powder 600 ~ 800 times liquid or 64% anti-virus wettable powder 400 ~ 600 times liquid spray control, gray mold with 50% speed Keling wettability Powder 1000-1200 times liquid spray control, aphids with 10% imidacloprid wettable powder 2000 ~ 4000 times liquid or 50% sputum fog wettable powder 2500 times liquid spray control. 6 Harvesting from mid-March to mid-April in the next year, when the top of the main stem is level with the tip of the highest leaf, it can be harvested and marketed. Plant Extract,Natural Eleuthero Extract,Wolfberry Root Bark Extract,Portulaca Grandiflora Extract Fufeng Sinuote Biotechnology Co.,Ltd. , https://www.sntbiology.com
Summer Cabbage-Delayed Tomato-Efficient Cultivation Mode of Lettuce