Autumn and winter celery fields
2018-06-26 09:00:34
Autumn and winter celery refers to sowing in late July, transplanting from late August to early September, and listing on New Year's Day and Spring Festival. Due to the transition from the optimum growth temperature to the low temperature stage in the late autumn and winter of celery growth, the light changes from long to short and the reproductive environment deteriorates. At this time, as long as the field management is good at four points, it can achieve 3000 kilograms per mu, and the income is 3,000 yuan. First, a reasonable fertilization watering celery in later water demand. The stalks of celery in the aboveground part grow to full height, and the underground root group has occurred in large quantities. If water is scarce, it can easily make the petiole ageing and reduce the tenderness, quality and output. Therefore, celery watering in the later stage to keep the ground moist, generally pouring 3-4 times the water to meet the needs. Avoid flood irrigation, to prevent the spread of pathogens, harm celery. The weak growth of celery, leaves from green to yellow, can be sprayed with 0.5% urea or 0.3% potassium dihydrogen phosphate solution, apparently lack of fertilizer, urea can be applied per 1-2 kg of water to promote celery petiole hypertrophy Enriched to prevent celery from dehydration. Do not step on celery during field management so as to avoid disease infestation. Second, the prevention and control of pests Autumn winter celery pests: locusts, spider mites and so on. Anti mite can be used 20% matrine 2000 times or avermectin 3000 times or 30-40 kilograms of urine washing agent, prevention of up to 98% or more; anti-Red Spider can be used 5% Citalo 800-1000 times or 1.8% insect pests 7000 times liquid or fresh loofah smashed plus 2 times water to stir the residue to take liquid prevention, prevention can reach 95% or more. Third, the insulation cold autumn and winter celery: after planting temperature gradually cool, by the appropriate temperature stage (temperature 15-25 °C, soil temperature around 20 °C) favorable celery growth, gradually transition to a low temperature stage. When the temperature drops to 10-12°C in the middle or late October, the straw cover curtain insulation will be applied. It is generally better to adopt a small shed for cultivation. The film was peeled off around 8°C during the day and was covered at around 5pm. Fourth, the harvest harvest period should be based on market demand and product maturity. General autumn and winter celery to supply New Year's Day, the Spring Festival. One week prior to harvesting, watering was required to increase the tenderness and sales were staged based on the morning and evening of planting and the growth of petioles. China Agricultural Network Editor
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