Talking about Fruit Corn Cultivation Technology

Fruit Corn is a kind of super Sweet Corn suitable for raw food. Compared with common corn, its main feature is that the green bar is thin, juicy, crisp and sweet. It can be eaten raw directly, and the thin skin is bitten. Broken, fragrant sap overflowing the cheeks. Usually, the rural areas are planted with ordinary corn. The average yield of ordinary corn is only about 1,000 kg. The current price is between 7-9 and the economic benefits are relatively low. The benefits of fruit corn are more than three times that of regular corn. The output value of planting corn and corn can reach 3,000 yuan, which can adjust the agricultural planting structure and improve the economic benefits of farmers, but it is technically strong. The following describes the cultivation techniques of fruit corn.

1. Variety selection : Fruit corn should be selected from varieties with strong adaptability, uniform ear, good quality and high purity. It is advisable to use the sweet and crisp 8th high-altitude early-maturing variety.

2. Planting density : Fruit corn was sown in finely-consolidated soil in early April, with a row spacing of 40 cm, a plant spacing of 20 cm, a seeding depth of 3 to 5 cm, and a planting density of 667 square meters of 3000 to 3500 plants.

3, soil selection: soil selection should choose irrigation and drainage, good uniformity, soil fertility is above average.

4, timely sowing: the average temperature of the surface is stable at 13 ° C, 5 cm ground temperature can reach 11 ° C or more can be planted. Generally, in late April, mulching can be used to sow 10-15 days earlier; using film seedling transplanting technology, seeding can be carried out 20 days earlier. The latest sowing date is suitable before July 10th to ensure that it can be harvested before the early frost. However, planting should be avoided between late May and mid-June. During this period, the corn flowering pollination period is in the dry weather from July to August, which may cause the plants to be bald, missing or empty. The germination speed of fruit corn is also closely related to soil moisture. When the temperature is certain, in the optimal moisture range, the soil will germinate quickly when the soil moisture is high.

5. Fertilization management: The leaves of fruit corn are flat and the plant type is loose. The planting density is suitable for 3500-4000 plants per mu. Fertilization should be applied to the base fertilizer, early application of seedling fertilizer, heavy application of panicle fertilizer, application of NPK, and promotion of organic fertilizer application. The total fertilization amount of medium fertility field is controlled at 15 kg of pure nitrogen, 6 kg of phosphorus (phosphorus pentoxide) and 6 kg of potassium (potassium oxide).

6. Field management: For fruit corn, it is necessary to carry out seedling management in a timely manner, cultivating weeds, timely snoring, watering, scientific use of fertilizers, and prevention of pests and diseases. The fruit corn seedlings are weak in seedling stage, and are susceptible to insect pests in the later stage. After emergence, it is necessary to check the seedlings to fill the gaps, prevent weeds, remove tillers and excess small ears in the seedling stage and medium term, and control the pests such as corn borers in the middle and late stages. The picking period of fruit corn is about 3 days earlier than that of ordinary sweet corn. About 20 days after pollination, the best picking period can be grasped according to the color of the filament and the taste of the field.

7. Pest Control: Fruit corn is mainly damaged by corn borer in the heart and ear stage, and its larvae are invaded into the stem, causing the stem or tassel to break, and drilling into the ear to damage the grain will greatly reduce the commerciality.

Corn glutinous rice: The control of corn mash can be granulated with granules, and 3% of Miller granules are applied to the heart leaves. The effect is long and the effect is good. Or use 1 to 50 parts per million of spore-containing Beauveria bassiana powder, and make 10-20 times granules to spread on the heart leaf better. Or use 1 kg of bactericidal powder containing more than 10 billion spores per gram, add 750-1000 kg of water, infuse the heart leaf, and kill the mites.

Mythimna: Mycorrhizal control can use 2.5% trichlorfon powder to spray 4-5 kg per acre, good insecticidal effect; or use 90% trichlorfon or 50% dichlorvos 1000-1500 times liquid, spray 100 kg per mu .

Sawing the heart or filling the heart: the pest control measures of the heart leaf or the heart leaf should be carried out during the big bell period. The insects on the filaments of the ear are severely damaged. After the filaments are withered, they can be controlled by bio-insecticide BT emulsion or insecticidal double or Bataan or Great God.

Aphids: Aphids can be treated with 40% dimethoate or 50-80% dichlorvos emulsion 1500-2000 times liquid or 50% smog fog with 20-30 grams per acre.