Fruit corn is a fresh corn variety developed and popularized in recent years. Because of its thin skin, delicate taste and rich nutrition, it can be eaten fresh, cooked, frozen or canned, and is favored by consumers. In addition, the stems and leaves of fruit corn are high-quality feed for livestock and have great development potential. The output value of planting fruit and corn can reach about 3000 yuan per mu, which can adjust the agricultural planting structure and improve farmers' economic benefits, but it is highly technical. Through planting fruit corn in recent years, our field has summarized the following technical measures for cultivating fruit corn with high quality and high efficiency.

First, choose good varieties.

Fruit corn is mainly sold as fresh fruits and vegetables or canned products with young ears. It is advisable to select varieties with strong adaptability, uniform ear, good quality and high purity, and pay attention to the collocation of early, middle and late maturity varieties, which can continuously provide raw materials for the market and processing plants. It is very important to choose good varieties, which plays a great role in crop yield and commodity. Such as Lima 1 and Lima No.2, these varieties have high sweetness and good quality and can be planted. The annual demand ratio of NPK is about: 1: 0.5: 1.2. Compound fertilizer (16-19-10) 35 kg or (15- 15)30 kg. The law of maize fertilizer requirement is that seedling stage accounts for 2% of the total topdressing in the whole growth period, ear stage accounts for 85%, and grain stage accounts for 13%.

Jingkenuo 2000 Breeding Unit: Corn Research Center of Beijing Academy of Agriculture and Forestry Sciences.

Variety source: female parent Jingnuo 6, from Zhongnuo1; The male parent BN2 is from Zinuo 3.

Characteristics: It takes about 85 days from emergence to harvest in southwest China, which is equivalent to the control Yunuo 7. Wide adaptability and strong disease resistance and resistance. The seedlings have purple leaf sheaths, dark green leaves, green leaf margins, green anthers and pink glumes. The plant type is semi-compact, the plant height is 250 cm, the ear height is 95 cm-1 15 cm, and the number of leaves 19. Filaments are pink, with conical spikes, spike length 19 cm, rows per spike 14, 100-grain weight (fresh grain) of 36. 1 g, white grains and white spike axis. The average lodging (folding) rate in southwest regional trial is 6.9%.

After two years of inoculation and identification by the Institute of Plant Protection of Sichuan Academy of Agricultural Sciences, it was moderately resistant to Great Leaf Blight, Sheath Blight, Sensitive to Small Leaf Blight, Head Smut, Corn Borer and Highly Sensitive to Stem Rot. After tasting and identification by experts in the regional trial of fresh waxy corn in southwest China, it reached the second-class standard of fresh waxy corn issued by the Ministry. Amylopectin accounts for 100% of the total starch content, reaching the waxy corn standard (NY/T524-2002) issued by the Ministry. According to the determination of Yangzhou University, amylopectin accounts for 98.52% of the total starch, and the peeling rate is 8.3 1%.

Yield performance: in 2005 19 pilot sites, the average yield per mu was 867.8kg, which was 34. 1% higher than the control, and the yield ranked 1. In 2004, the average yield per mu was 89 1. 1 kg, which was 30.3% higher than the control, and the yield ranked as 1. The yield increased at 39: 00 in two years, with an average yield of 879.5 kg per mu, which was 32. 1% higher than that of the control.

Examination and approval opinion: This variety conforms to the national maize variety examination and approval standard and has passed the examination and approval. A New Waxy Corn Variety Jingkenuo 2000 for Grain, Economy, Feed and Fruit.

Use 3.5 kg -4 kg of seeds per mu.

Second, get ready before sowing.

1. Isolation conditions The sweetness of fruit corn is controlled by negative genes. If it is mixed with ordinary corn or different types of sweet corn, it will produce pollen allelopathy and become ordinary corn, losing its sweetness and affecting its quality. Therefore, fruit corn should be planted separately from other varieties of corn. Isolation methods include spatial isolation, time isolation and obstacle isolation. The general space isolation distance is 300 meters. If time isolation occurs, the sowing time is generally more than 20 days, and obstacles such as villages, Woods and hills can also be used for isolation. It is best to use spatial isolation.

2. Land selection and soil preparation should choose medium and high fertility land with flat terrain, uniform soil fertility and good irrigation conditions. Before sowing, soil moisture should be well watered, and after one week, fine rotary tillage should be carried out to level the land, so that it is flat and thin, without stubble and clods protruding, so as to facilitate the smooth emergence of seeds.

3. When applying base fertilizer to cultivated land, evenly spread 50 kilograms of organic compound fertilizer and 40 kilograms of urea per mu, but pay attention to seed fertilizer isolation.

4. Film-laying planting can be implemented where there are film-laying conditions. In some places where the spring is dry, rainy and windy, and the rainfall is concentrated in July-September, the economic benefit of film-covered planting is better. Because plastic film mulching can not only improve the ground temperature, sow early, make the products go on the market as soon as possible, but also prevent water evaporation, maintain soil moisture and reduce the production cost of products. The mulch film can be laid manually or by a film laying machine. General belt spacing 100 cm, ridge width 80 cm and ridge height 15 cm. The mulch film should be straightened and leveled, and the surrounding area should be covered tightly with soil, and a windbreak belt should be pressed every 2 meters to prevent it from being blown by the wind.

5. Seed selection, seed soaking, and sun drying for 1-2 days before sowing can improve the germination rate and germination potential of seeds, and then select them carefully to remove impurities and damaged seeds and prevent other seeds from mixing. If mixed with other common corn, and common corn grows vigorously and has a large amount of pollen, the quality of fruit corn will be greatly reduced after cross pollination, and it can not even be sold as fruit corn.

Soaking seeds in clean water 12 ~ 24 hours, or soaking seeds in warm water at 50℃ for 6 ~ 12 hours can make seeds germinate quickly and orderly.

Soaking seeds with 30% human urine 12 hours, or soaking seeds with 50% human urine for 6-8 hours can accelerate the transformation of nutrients in seeds, which is beneficial to the growth of strong seedlings and can increase the yield by 5% ~ 10%.

Soaking seeds with 500 times potassium dihydrogen phosphate solution for 8 ~ 12 hours germinated 12 days earlier than corn without soaking seeds, and the yield increase effect was obvious.

Seed dressing with 50% phoxim EC, 20 ~ 40 kg water and 250 ~ 500 kg corn seeds can control underground pests at seedling stage.

Seed dressing with 25% triadimefon wettable powder, the amount of seed dressing is 0.4% of the seed weight, which can prevent jade.