Sticky corn has become a new type of food. It can not only eat fresh spikes, but also can be frozen and sold for off-season sales. Normal mature corn can also be ground into a unique flavor of Northeast "sticky bean bag." The planting of viscous corn not only has a high economic income, but also plays an important role in the transformation of normal corn to special corn in the adjustment of crop structure.
1, plot selection
The plot should be set within 3 km of a non-polluting source and an ecologically sound agricultural production area. The irrigation water quality, air quality, and soil environmental quality around the parcel should be within the scope of the national production standards for pollution-free agricultural products. In addition, sticky corn should be isolated from corn varieties with different genetic backgrounds, so as to avoid the reduction of fruit quality and yield. Generally, the distance between 300-500 m is appropriate.
2, nursery
Due to the dryness of the sticky corn seed, the top soil of the phantom seedlings is weak, so the live broadcast of Daejeon can easily lead to lack of seedlings. From the consideration of seasons, species conservation and early listing, it is advisable to use transplanting seedlings. The currently selected sticky corn varieties are mainly sticky stick series No. 1, No. 2, and No. 3. Greenhouse or greenhouse nursery, with 30% to 40% of the decomposed farmyard fertilizer, 60% to 70% fertile fine soil, the amount of superphosphate, turning soil and mix well, into the specification of 6cm nutrient bowl. On April 20th or so, choose the sunny day without the influence of strong cold air to sow the seeds in stages. Each pod should be sown with 2 pellets. Drench the bottom water and cover it with moist nutrient soil 1cm thick. Normal management is strictly prohibited.
3, transplanting
After the local frost period expires, the corn seedlings grow to 3 to 4 leaves at this time, and they are generally transplanted on May 10th. Only 1 strain was left in each nutrient pod for transplanting. Slightly deeper when planting, transplant 3000 to 5000 per acre, plant spacing 25 ~ 28cm, spacing 60 ~ 70cm.
4, scientific fertilization
Since the viscous corn harvest period is about 15 days earlier than that of ordinary corn, the base fertilizer should be sufficient, and the top-dressing fertilizer should be ground. Before transplanting, combine soil preparation and ridging 2000kg of organic fertilizer per acre and 15～20kg of three-element compound fertilizer (15% for N, P and K). The first topdressing before 6 ~ 7 leaf joints, generally urea 5 ~ 6kg. The second topdressing was between 13 and 15 leaves, and 5 to 6 kg of urea was applied. The application method is basically the same as that of ordinary corn. In the case of good water and fertilizer conditions, seedlings are prone to tillering. In the middle and late stages, it is easy to have multiple spikes and leaves growing too long. It is necessary to remove the tillers and ineffective panicle buds as soon as possible. When the leaves are too long, the top leaves should be cut off in time. Silking should be assisted by artificial pollination, otherwise it is easy to reduce production.
5. Pest control
When used for transplanting, it is poured with 48% of Loxan emulsion 1000 times to prevent underground pests such as tigers and earthworms. The prosperous period of heart and leaf is a critical period for the control of corn borer, and it can be controlled by high efficiency, low toxicity and low residual pesticides such as BT emulsion and fast killing spirit. In the event of corn leaf spot disease, sprays of 50% carbendazim wettable powder 500 to 600 times or 70% thiophanate-methyl wettable powder 800 to 1000 times are generally sprayed on the affected fields before and after corn picking.
6, chemical weeding
(1) After sowing, before emergence, use 90% of Naurice emulsion 40 to 50mL or 50% of acetochlor emulsion 80 to 100mL to water 50kg, evenly sprayed on the surface.
(2) Stem and leaf treatment When monocotyledonous weeds are in the 1 to 2 leaf stage, dicotyledonous weeds are used in the 2 to 4 leaf stage with 40% atrazine emulsion 200 to 250 mL or 80 to 100 mL of water. Water 50kg evenly sprayed on the weed stems and leaves.
7, timely harvest
Green food should be timely harvested to ensure that the sticky corn is rich in nutrients, thin skin, no slag, good taste and high selling price. It is generally suitable to harvest 18 to 20 days after spinning.
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