In recent years, Hantai District has actively developed ecological agricultural demonstration plantations, developed three-dimensional planting techniques for planting pollution-free corn and carrots in a number of vegetable specialty villages, and obtained good ecological and economic benefits. The output value can reach over 2,500 yuan per 667 square meters. , The three-dimensional planting carrot and corn cultivation techniques are summarized below.
First, the technical requirements of the production environment
Soils with fertile, loose, well-drained soil or sandy loam soils are required, and sandy soils along the riverside are particularly suitable for the growth of carrots.
Second, technical measures
1. Variety selection The varieties with high disease-resistance, high-quality and high-yield, strong adaptability and good commercial quality are selected. Seed quality requirements meet the standards.
2, land preparation and early ploughing to do more than turning, broken soil leveling, made low-lying, width 1.5 meters wide.
3, basal fertilizer per 667 square meters into the decomposed beef and pig manure 3000 kg of manure.
4, sowing seeds for every 667 square meters carrot 1.5-2 kg. Three kilograms of corn per 667 square meters are planted on the spot and the plant spacing is 20 centimeters. Carrots are sown by sowing, first spread sowing on the surface, then covered with fine soil and suppressed. General corn is sown in early June and carrots are sown in mid-August.
Third, field management
1. Seedlings and weeding seedlings should be subjected to 2-3 thinning and tillage weeding. When the seedlings were 2-3 true leaves, the first time the seedlings were planted, keeping the plant spacing 3 cm, and combining shallow ploughing and weeding soil. When the seedlings 3-4 true leaves (about 10 cm in height), the second time the seedlings, the seedling distance of about 6 cm; when 5 to 6 true leaves, the Dingmiao, remove dense strains, bad strains and Diseased plants, keeping the plant spacing 12-15 cm, 35-40 thousand plants per 667 m2, and cultivating and weeding.
2, watering from sowing to emergence, should be continuous watering, keep the soil moist.
3, Topdressing According to the soil fertility and growth status to determine fertilizer time. Carrots were top-dressed twice, after the first seedlings, the first top-dressing was performed, nitrogen, phosphorus, and potassium fertilizers were applied at 15 kg/667 m2, and when the roots were swollen, the second nitrogen, phosphorus, and potassium fertilizers were topdressed at 30 kg/667 g. Square meters. When fertilizing, it is required that no contaminated domestic waste fertilizer be applied, and fermented and decomposed organic fertilizers should be applied to meet the requirements of pollution-free food.
4. Pest control uses three-dimensional planting of carrots and corn, which can reduce the number of pests and diseases and cultivate disease-free pests. Requires a reasonable layout, appropriate density, and strengthen the cultivation and weeding. Carrots have less pests and diseases and generally do not undergo chemical control.
5. Harvesting When the roots of the meat are fully grown and mature and meet the requirements of pollution-free vegetables, timely harvesting shall be carried out.
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