Sweet corn is a combination of fruits and vegetables, rich in nutrition, sweet and delicious, easy to digest, suitable for all ages, and is an ideal food processing product. It is a popular food in the world today. The experimental demonstration of the 5a in southwestern Zhejiang Province showed that as long as the cultivation is properly conducted, fresh corn sticks can be produced from 12750 to 15000kg/hm2. Its high-yield cultivation methods: 1. Selection of varieties and cultivation areas according to the product test and the regional comparison demonstration, currently with panicle type Large, high sweetness, good taste, and high yield of the Super Sweet No. 2 and Zhetian No. 3 are the ideal main cultivars. The cultivation site should be selected to have a high level of soil fertility and convenient irrigation and drainage, and it is better to plant it as early rice, spring soybean, watermelon and other rehmannia. In order to prevent pollination with common corn bunches, they should be separated by more than 400 m when planting, or they should be sown for one month by mistake to achieve isolation. 2. The good seedlings are transplanted and the seeds of the sweet corn are shrunk and small, the germination rate is low, and the top soil strength is also weak. Using the seedling transplanting can save the seeds, and can also strive for the whole seedlings, and can also make the plant growth consistent. Increase production. 2.1 Determine the appropriate sowing date It has been observed that for every 1d change in the sweet sowing date of sweet corn, the maturity period changes 1.5 to 3 days. Late planting in the fall, easy to meet the low temperature in the late growth period, can not be normal maturation. After testing, the daily average temperature requirement of sweet corn in the grain-filling period is not lower than 20°C. Premature sowing is often due to high temperatures, shortened vegetative growth period, and plant dwarfism, and is susceptible to high temperature killing of flowers during tasselling. In southwestern Zhejiang, the sowing date is generally from July 25 to early August. In addition, according to the market sales and processing conditions, it is necessary to grasp the batch sowing in stages. 2.2 Selection of fertilizer bed seedlings Soil loose, fertile plots for seedbed, 1m2 available urea 50g, superphosphate 250g, potassium chloride 50g, human excreta 10 ~ 15kg, 10d pre-planted into the seedbed before sowing, soil till mixed broadcast. To dilute the seeding and sowing, cover the mud after the ash, spread a little carbofuran on the ash to wet the seedbed to prevent rats and insects from harming, and then cover the straw or black shading net to shade the sun. After the buds are exposed, the cover is removed and the seedlings are kept moist during the seedling raising. 2.3 The size of the row of reasonable close planting is divided into two rows of planting, with a width of 1.2m, of which a large row spacing of 0.9m, a small row spacing of 0.3m, each 3 belts that open 3.6m a ditch. Two rows of corn were planted between rows of small rows and planted in the shape of an "S". The leaves were oriented when transplanted, and the leaves were perpendicular to the row spacing. The density depends on the size of the panicle type. Generally, the density of large panicle type varieties such as Zhetian No. 3 is planted at 45000 to 52500 plants/hm2, and the plant spacing is 0.3 to 0.5m; the plant type with smaller ear is 52500 to 60000 plants/hm2. should. After transplanting, lightly exfoliate manure to lizagen live trees. 3.Scientific use of fertilizers from 1994 to 1996 3a different fertilization methods and comparative results of different fertilization results analysis, sweet corn to high-yield, in the fertilization technology should grasp the "enriched basal fertilizer, early application of Miaofei, Shi Shi strong stalk manure and Re-apply the principle of attacking pu-pian (pan-fert)." 4. Strengthen management, prevention and control of sweet corn The early growth is weak, and strengthening management at seedling stage is very important. Because it is particularly sensitive to moisture, we should keep the soil moist. If it is too dry, it should be watered and drought-resistant in time, but it should be drained in time when it is damaged. After the transplanting and survival, combined with the application of super-fertilizing and weeding in time; in the jointing stage to the small bellmouth stage, a deep and medium ploughing is carried out in combination with Shiqiang stalk fertilization; in the big bellmouth, it is combined with the panicle fertilizer to cultivate the soil, so as to deepen the roots and strengthen the lodging resistance. ability. The main insect pests of sweet corn in autumn are seedling stage tigers, armyworms and corn pods at the ear stage. Especially, the ear formation period is longer than that of spring corn. Therefore, the damage caused by corn borer is also heavier than that of spring corn. Period of corn borer control, so as not to invade the ear and affect the quality. Generally available cypermethrin and other pyrethroids low toxicity pesticides for prevention and treatment. 5. The timely harvest of sweet corn is mainly based on fresh food and processing. After harvesting, it should not be released for a long time. A batch of mature crops should be harvested to avoid premature or too late harvest to ensure the quality of sweet corn. Generally suitable for the harvest period after turning the seed color slightly or turning black.
Sweet Potato Leaf Juice Vermicelli Bag
Sweet Potato Leaf Juice Vermicelli Bag
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