1 choose to fertilization
Seed production site requirement is 500 meters above CunTun, absence of cucumber varieties breeding ground, 1000 meters above, two years is not kind of melons, sunflower, fertile soil, good air permeability, flat on the ground, don't choose a depression or drought loongdao plot.Cucumber fertilizer requirement, before clicking or combined bed (refers to the big mu, similarly hereinafter) per acre of rotten banding realized farmyard manure, chicken manure, pig), 4000-5000 kg, 40 to 50 kg ternary compound fertilizer, or 30 kg diammonium phosphate and potassium chloride 10 to 15 kg.Ridge broadcasting of fertilizer, and sprinkled on ridge and the ridge to help, and then push on the ridge of the fat into the ditch.
2 do bed
2.1 maternal bed
Synthesize two 67 cm wide corn planting bed, bed surface width 70 cm, 64 cm wide on the bed, bed is 12 cm high.By motor vehicles at the bed the first plow plow tip from 45 cm, after the first plough evenly into the farmyard manure, chemical fertilizer;Behind the second plow plow tip distance is 80 cm, hang up the large exposure to pull the son, at the same time the bed till the second plow surface smooth, tillage was carried out on the bed surface width in time after finishing, ensure the bed surface of 70 cm wide, break TuKeLa, pick out of corn for chi son (to pick it again before bed).By repression, twice in the seed row on both sides of the bed (from 45 to 50 cm) to open a small ditch, 2-3 cm deep, on 8-10 cm wide.
2.2 male in bed
The parent, female parent proportion is 1:4.In order to adapt to the compression of parent area increased maternal space, does not reduce the proportion of male parent to ensure pollination, parent can be made small bed, bed is the original a ridge do a bed, on both sides of the adjacent maternal bed are appropriate compression, make male parent bed bed surface width up to 50 cm.
3 coated
To prepare membrane 5 kg per mu, the width is 90 cm and 95 cm, want a choose and buy good pervious to light and strong toughness, high quality plastic.Bed is done in a timely manner of coated, coated with one film, the two pressure membrane, put every 6 to 7 m to pull film once;Squeeze film on both sides to tighten the flattening, cover soil pressure on real.
Seeds 4
4.1 for seed disinfection before planting
Seeds with 55 ℃ hot water soaked with 15 minutes, and continuously stirring, and then scoop out into the cold water cooling, and the seed repeatedly rub, reoccupy clear water is rinsed mucus after dry direct seeding, or continue at 25 ℃ and 30 ℃ water soaked with 4-5 hours, go to the water dry, with good cloth, and on the temperature is 27 ℃ to 30 ℃ environment sprouting, when sowing seeds showed the apex, such as after germination in the cloudy can't sow, can use wet towel to put seeds, wrapped in a cold place 10 ℃ "squatting bud".
4.2 the sowing date and method
Parent May 13-16, sowing seeds, maternal 7-8 days late.Every bed 2 rows, maternal small spacing 45 to 50 cm, small spacing of male parent 30 cm, planting distance are 25 to 27 cm, each hole 1 or 2 seeds.Seeding when the iron point 5 cm in diameter, stick hole, hole to be straight.It is advisable to sowing depth to 2 cm.Planting cover tightly with fine soil and gently press.
5 seedling management
Male parent phase 2 lobes with a small spray of 400 mg/L silver nitrate - sodium thiosulfate solution, 3 leaf stage, 4 leaves stage to each spray again.Spray silver nitrate is best done in the evening, when there is no wind, foliar spray wet to see a little fog bead but not drop so far, keep a mist floated on the female parent.Female parent, respectively, in the second leaf wholeheartedly, trilobites, four leaf with each spray with a 100-150 mg/L b burning the (match method: 4-6 ml40 % ethephon with 15 kg water beaten), a total of 3 times, spraying a good choice, there is no wind fine weather after 4 o 'clock in the afternoon.
6 pollination period and knot GuaQi management
6.1 female parent to male flowers
2-3 days prior to the start of the female parent in pollination, be sure to put the male flower and hermaphrodite flower to clean, at the same time to take off under section 6 of the female flowers.During the whole period of pollination every morning line by line by line check it again, the female parent wipe out all possible male flower and hermaphrodite flower, at the same time the individual gender melon and pollination article melons, collateral are removed.Each knot melon article 2-3, an average of two above, can pull the male parent, pollination, but after 25 days, mothers still have to continue to go to the male, at the same time to take off the female flowers.
6.2 the male to the female flowers
Pollination during male parent must also check, found that female flowers and small melon, to remove in time, and get rid of the collateral, which is conducive to concentrate nutrients cultivating big male flowers, increase pollen counts.After pollination pull out all the parent plant and seed extraterrestrial centralized burning.
