How to grow fruit corn? Planting techniques of Fruit Corn

Corn is not only everyone's favorite food, but also an important food in the north. Corn tastes sweet and delicious. A sweeter corn has been bred to be eaten raw as a fruit. It has thin skin, juicy, crisp and sweet, cooked and eaten is also very good, so how to grow fruit corn? The planting technology of fruit and corn.

Key points for planting fruit and corn:

Sowing by stages: in order to prevent the trailing of flowers and reduce the quality, fruit corn should be isolated from other types of corn. Can be in the planting spacing (more than 300 meters), florescence (more than 30 days) on the isolation, can also use hills, forests, houses and other barriers to isolation. The picking period of fruit and corn is short and it is difficult to keep fresh. It can be picked and listed in batches by sowing by stages. Generally, the seeds can be sown from the end of March to the beginning of August, and those with heat preservation facilities in early spring can be sown in advance, but sowing between late May and mid-June should be avoided. The flowering and pollination period of corn sown in this period is in the summer drought of July-August, which is easy to cause bald tip, grain deficiency or empty stalk.

Sprouting and sowing: it is appropriate to choose sandy loam fields with high soil fertility and sufficient fertilizer and water to cultivate fruit and corn, and fine soil preparation should be done before sowing. Fruit corn seed wrinkled, endosperm small, germination rate is low, seedling potential is weak, in order to strive for seedling, seedling whole, seedling strong, whether it is direct seeding or seedling transplanting, it is best to promote germination and sowing.

Scientific fertilization: the leaves of fruit corn are spreading, the plant type is loose, and the planting density is 3500-4000 plants per mu. Fertilization should be suitable for the application of base fertilizer, early application of seedling fertilizer, heavy application of panicle fertilizer, combined application of nitrogen, phosphorus and potassium, and advocate the application of organic fertilizer. The total amount of chemical fertilizer for medium fertility fields is controlled at about 15 kg of pure nitrogen, 6 kg of phosphorus (phosphorus pentoxide) and 6 kg of potassium (potassium oxide).

Fine management: the growth of fruit corn in seedling stage is weak, and it is vulnerable to insect pests in the later stage, so it is necessary to do a good job in field management in time. After emergence, the seedlings should be checked and filled in time, weeds should be controlled, tillers and superfluous spikelets should be removed in seedling stage and middle stage, and corn borer and other pests should be controlled in the middle and later stage. The picking time of fruit corn is about 3 days earlier than that of ordinary sweet corn, and about 20 days after pollination, the best picking time can be grasped in time according to silk color and field taste.

Fruit and corn planting techniques:

First, choose the planting site: the soil of the planting land is fertile and loose, the sun is sufficient, the drainage and irrigation is convenient, and pay attention to the fact that the field can not accumulate water, which is an important basis for obtaining high yield.

Second, raising seedlings: nutrition cup (plate) seedling transplanting is conducive to seedling management, ensure the number of effective plants per mu, ensure neat growth and save seeds. The nutrition cup can be 8 × 8 or 6 × 6, and the nutrition plate is 5 × 5 with 48 holes in each plate and one seed in each hole. Direct seeding is beneficial to seedling emergence. When sowing, the germ of the seed is facing down vertically, cover the soil 1.5ml 2 cm, cover the soil with garbage, but do not use large (thick) soil, so as not to affect the emergence of seedlings. Nutritious soil is mixed with garbage soil or burning soil, adding 2 kg of zinc sulfate and 5 kg of calcium, magnesium and phosphorus per mu. Keep the moisture of the nutrition cup after sowing to ensure that the seeds absorb water and germinate.

Third, transplanting: directional transplanting, transplanting in time from two leaves to three leaves, ensuring that the leaves of each plant are facing the same, which is conducive to light transmission, ventilation and avoid poor pollination. Planting 2800 plants per mu in spring, 2600 per mu in summer and 2800 in late autumn.

Fourth, fertilization: it is mainly based on base fertilizer, which accounts for more than 80% of the total fertilizer. Based on the yield of 3000 jin of fresh sticks per mu, 18 kg of pure nitrogen is needed per mu, and about 40 kg of urea is needed per mu according to the 46% urea content. It needs 8 kilograms of phosphorus per mu and 50 kilograms of superphosphate per mu with 16% superphosphate as an example. Need 19 kilograms of potassium per mu, take 50% potassium sulfate as an example, 40 kilograms of potassium sulfate per mu. Fertilizing is best applied. The utilization rate of fertilizer buried in the ground is very low.

Fifth, topdressing: according to the growth of the plant, consider whether to topdressing, how much fertilizer. Topdressing should be applied to ensure that the plant absorbs fertilizer in time. Topdressing is usually in the middle ploughing (5mur6 leaves) or heading.

Sixth, pay attention to the prevention and control of diseases and insect pests: during the growth period of corn, attention should be paid to the prevention and control of bacterial wilt (stem rot) and leaf spot. The disease should be mainly prevented, and should be sprayed twice before the rainy season, or when the field humidity is high, it should be prevented in time. Corn borer is the main insect, pay attention to observation during male selection, and timely prevention and control of insect pests. Generally speaking, it can be done twice with 1m / m / m.

7. Timely harvest: generally, it is ripe after 18-22 days of flowering in summer and harvested in the milk-ripe period. The quality is the best and the yield is the highest. At this time, the silk turns black and the grain is light golden yellow, which is better than when the color on the control poster is similar.

Introduce a variety of fruit corn:

Meinong fruit corn: about 90 days from seedling emergence to fresh ear harvest, plant height 250cm, ear position 95cm, high resistance to diseases such as big, small spot, virus, bacterial wilt, sheath blight, etc., ear tube shape, bright yellow grain, 1000-grain weight 250g, grain row 1820 rows, ear length 24~26cm, fresh ear unit weight 0.45kg about, general yield per mu about 1300kg. Its appearance quality, color, plumpness and tenderness are good, the skin is thin and easy to turn to slag, and the cooking taste is good. The living stalk is ripe and the green degree is good. Tested by the Grain quality Supervision, Inspection and testing Center of the Ministry of Agriculture: (dry base) amino acid 12.18%, crude protein 13.5%, crude fat 9.54%, crude starch 43.62%, total sugar 33.4%, reducing sugar 5.73%. High resistance to large, small spots, virus, green wilt, sheath blight, and other diseases, high resistance to lodging.