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Rutabaga namely leaf mustardleaf mustard, it is liver mosses of Yun of the mustard family, belong to annual or biennial is herbaceous, it is vegetable of China's famous special local product, produce China formerly, for the commonly used vegetable that countrywide each district helps advance somebody's career, distributing more at the Yangtse River with south each province. Of leaf mustardleaf mustard advocate lateral root distributings to be in the bine inside about 30 centimeters earth layer short shrink bine, blade is worn unripe short shrink on the bine, have circle of elliptical, egg, circle pouring egg, wrap around the appearance such as the needle, xie Se is green, deep green, shallow the grain between green, olivine, green or amaranthine. Euramerican each country seldom helps advance somebody's career, traceable Asia. Embellish of Leng Liang of happy event of leaf mustardleaf mustard is wet, avoid is burning hot, arid, be able to bear or endure a bit frost. Comfortable at a period of ten days of seminal bud average temperature is 25 ℃ . The most comfortable at a period of ten days that blade grows average temperature is 15 ℃ , the most comfortable the temperature that grows at edible organ is 8 ～ 15 ℃ , but the bine uses leaf mustardleaf mustard and organ of edible of the mustard that wrap a heart form the temperature with inferior requirement, average part of a historical period asks to temperature with leaf mustardleaf mustard laxer case. Rutabaga regards agricultural characteristic as one of products, quality is good, having wide development perspective. It is with part of subterranean root expand feed, the flesh is qualitative solid, character beautiful, fry aptly feed or souse edible.
Rutabaga appropriate picks earthy layer deep, loose, protect water to protect the oil sand earth with strong fertility or sticky loam to cultivate. Want the flesh to pledge the root grows good, answer to cross kang land greatly, ripe change soil, base manure uses farmhouse fertilizer 2250 Kg/hm2 of 375 Kg/hm2 of 22.5 ～ 37.5 T/hm2, calcium superphosphate, plant ash, scatter at the ground, turn over be buried n cultivated land next.
Rutabaga can sow directly, also but grow seedlings transplant. Fleshy qualitative root needs direct seeding kohlrabi little, form is more orderly, yield is higher also, choose direct seeding mostly. Rutabaga sows period the requirement is stricter. Sow premature, air temperature sends unripe virus disease and unbaked bolting easily high; Had sowed late, encounter microtherm to grow slow, absorb organ is small, root ministry is not easy expand, yield is low. When dibble seeding seed, according to soil dry wet circumstance uses different method. In soil dry circumstance falls, dig by certain travel spacing in the rows in face of moisture in the soil make an appointment with the acupuncture point with deep 2cm, the immediately after seminal dot falls uses become thoroughly decomposed finely farmhouse fertilizer builds seed and fill water; In soil damp circumstance falls, dot of certain travel spacing in the rows is pressed to put plant ash in face of moisture in the soil, the seed is sowed namely imprint in ash on, after one moisture in the soil is sowed, comb the seed with small rake in be buried. Every bunch planting plants more than 10. When sowing, make a seed diffuse, emerge is even. Need a seed 1.5 ～ 2.25 Kg/hm2. Direct seeding means, common kind take 375 thousand individual plant / Hm2 left and right sides. Of grow seedlings transplant, transplant density is 25cm × 15cm, plant 300 thousand trunk of a tree / Hm2 left and right sides; Transplant density is 50 Cm of 45 Cm × , plant 45 thousand trunk of a tree / Hm2 left and right sides.
Need to irrigate work instantly after transplant field planting fat. Grow in rutabaga during development, apply high grade and organic fertilizer and NP potash fertilizer frequently, general 20 D of every 15 ～ is applied 1 times, apply 3 ～ 5 times repeatedly, use NPK every time compound fertilizer 75 ～ 150 Kg/hm2, deserve to apply thin night soil. In subterranean root rapid expand period, shi Lin is acerbity 2 hydrogen Potassium 45 ～ 75 Kg/hm2, gush of 10 D of every 7 ～ applies the vegetable of 800 times 1 times special model tall beauty applies fertilizer of fluid of active of organic humic acid, or element of vigor of 500 times plant, or 5000 times Huangjia is natural mixed liquor of element of Yun liver mosses, connect gush 3 ～ 5. Assure to enough moisture is supplied equably, avoid by all means how many, edaphic craze. Direct seeding means, after Qi Miao, with 10% ～ the water of clear dung of become thoroughly decomposed of 15% has top application the 1st times. After thin out seedlings, with 15% ～ the mucky water of 20% the 2nd top application. After 10 ～ 15 D, with 20% ～ the mucky water of 30% has top application the 3rd times, in order to close to seedling grows. Pledge in open quotation and flesh an expand period, with the top application of water of person cultivate dung of 50% , with hurried root expand. Inspect grow the circumstance uses top application the 5th times again.
After rutabaga sows, the seedling inside general 7 D can go out neat. 30d of the 20 ～ after the seedling, true leaf 4 a short while of 3 ～ , undertake thin out seedlings, every acupuncture point takes hale young plant 4 individual plant of 3 ～ , the distance that 0.6cm controls is preserved between individual plant and individual plant, after the seedling is over between, undertake shallow intertill weeds the 1st times. Cross 10 ～ 15d again, come in Cold Dew end about final singling undertakes during Frost's descent, every acupuncture point is chosen take a young plant 1 individual plant, can use when final singling unplug the seedling that come out has fill a vacancy, undertake intertill weeds the 2nd times right now. In qualitative root of open quotation and flesh expand period undertakes deep intertill weeds the 3rd times, combinative intertill weeds but hill up 1 ～ 2, hill up can make fleshy qualitative root tender, do not send dew to give earthy side, become green to age. After plant is grown base ability of absorb of ministry old leaf is weak, part of one's job second hit, with benefit ventilated and pervious to light. Discovery is unbaked smoke tendril to should be excised in time.
The main plant diseases and insect pests of rutabaga has moth of virus disease, black corrupt disease, cabbage caterpillar, cole, aphid, Huang Qu jump armour. Rutabaga avoid and continuous cropping of crop of the mustard family.
Method of prevention and cure of disease of 5.1 black corrupt
With 72% agricultural streptomycin but wet sex powder 4000 ～ 5000 times fluid, or 75% 100 bacterium are clear but wet sex powder 500 ～ 600 times fluid, or 25% armour frost is clever but wet sex powder and 50% blessing beauty double but wet sex powder presses 1 ∶ gush of the 1 500 times fluid after mixing is applied. Coming on initial stage lies between 7 ～ 10 days gush, connect gush 2 ～ 3.
Method of prevention and cure of 5.2 virus disease
Come on initial stage uses 20% hydrochloric acid Lin guanidine copper but wet sex powder 500 times fluid, or 2% hydrochloric acid agent of Lin guanidine in suspension gush of 600 times fluid applies 400 ～ , connect gush 2 ～ 3, every other 7 ～ 10 days of gush.
Moth of 5.3 cabbage caterpillar, cole
Can use ester of chloric cyanogen chrysanthemum 3000 times fluid, BT emulsion 600 times fluid; Kongfu 1500 ～ 2000 times fluid, 1.8% bug mite overcomes 3000 ～ 4000 times fluid prevents and cure. 5. Aphid. With official of 10% great merit 10 ～ 15 grams / mu, le Guo 1000 times fluid undertakes 800 ～ prevention and cure.
