Regeneration sorghum cultivation techniques

Sorghum is a crop with wide adaptability and strong resistance. The regenerated sorghum is characterized by the strong germination power of dormant buds on stem sections of sorghum after mature harvest in the first season. Through a series of cultivation and management measures, the base of the stem nodes sprouted, heading and flowering, and grouting was harvested. Regeneration of sorghum can save seeds, labor and fertilizer, while the short growing period, early maturation, and favorable winter seeds are another way to promote structural adjustment and increase farmers' income. According to relevant information, the hybrid sorghum produces 400 kg per mu in the first season, and the sorghum can reach 250 kg. Wanzhou District Agricultural Technology Station was tested in Group 11 of Langjiazui Village, Peiwen Town in 2000. It was planted on March 31st, transplanted on April 29th, planted 5000 acres, and the variety “Noza 4” was produced. 282 kilograms, 206 kilograms per mu of regenerated sorghum, 12.4 times higher than the local control variety. The cultivation points are:

1. Reasonable layout: The reclaimed Gaochun should be mainly located in the valleys of the Yangtze River and Jialing River, below 400 meters above sea level, and the main producing areas with high light and heat resources.

Second, the selection of high-quality varieties with strong regeneration: Due to the poor regenerability of local varieties, high-quality hybrids with good regenerability should be selected, such as No. 4 of No. 4 and No. According to several large and medium-sized breweries in our city, the brewing trials were conducted. The above-mentioned hybrid sorghum varieties were planted in our city, and their winemaking quality was significantly better than that of the northeastern sorghum. The high shoots and high boring bars also had high economic value.

Third, lay a good foundation for the first quarter

1. Early sowing and early planting at the right time: Retaining and regenerating sorghum must be timely and early sowing from the first quarter to promote early maturation and early harvest. The best time for planting in low-altitude areas of the city is generally mid-to-late March. Localities can be flexibly arranged according to local ecological conditions and farming systems. Harvesting the first season in late July will ensure that the regrowth sorghum can be safely matured to capture high yields.

2. Reasonable dense planting: The planting density of hybrid sorghum is generally 5000-7000 strains. The lack of density has a great impact on the yield, and the density is too high to manage it.

3, a reasonable fertilization: First, give a good base fertilizer, mainly organic fertilizer, Mushi animal manure 1500 kg, 30-40 kg of superphosphate. The second is to apply good Miao Fei, with 35% of compound fertilizer per acre 40 kg, 1500 kg of manure water. The third is the application of panicle fertilizer, that is, 7-10 days before the beginning of panicle differentiation or heading application of 35% compound fertilizer 10-15 kg, or 1000 kg of human and animal manure and 10 kg of urea.

4. Pest control: Sorghum anthracnose and sheath blight are treated with jinggangmycin or thiophanate solution, and high larvae may be treated with furandan.

5. Harvest the first season in a timely manner: When the grains in the middle of the ear become red, the seeds can be harvested.

Fourth, renewable sorghum key technologies

1. Application of good bud Bud Fertilizer: Fertilizer is applied 7-10 days before harvest in the first season of sorghum, 1000 kilograms of fertilized manure is used to prevent aging of medlar. In this year, we must pay special attention to drought-resistant shoots.

2. Reasonable retention of piles: The culms should not be left too high or too low, leaving high piles, irregular spikes, and low yields. Keep piles too low and seedlings weak. Generally, it is better to leave two knots near the ground, and leave 3-4 cm of piles. Cover the crop with straw and straw in the previous season to moisturize the drought and reduce water evaporation. In the first season of harvesting, the sickle should be sharp, and the speed of cutting the straw should be fast. Minimize the degree of crushing of the stem to avoid rot and affect regeneration after the stem is broken.

3, Shi fat Miao Fei: After the first crop, immediately cultivator, and promote the early emergence of new roots. And Mushi 1,000 kilograms of human feces, urea 8-10 kg for Miao Fei. Appropriately increase the moisture content after the harvest.

4, sparse seedlings: after the regeneration of buds out, in order to uniform growth of seedlings, should be in the 2-3 leaves when the sparse seedlings, in addition to stay on, in addition to the weak stay strong, in addition to squeeze uniform, generally each seedlings left 2 It is appropriate.

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