Retaining and Reclaiming Techniques
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, increase late-autumn crop growth, 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. The main technical points for reclaiming sorghum are as follows: 1. Choosing a suitable area: The reclaimed sorghum should mainly be placed at a height of 500 meters above sea level, and the main production areas of sorghum with abundant light and heat resources. Second, the use of high-quality varieties with strong regenerative power: high-quality hybrid sorghum cultivars “Zhuzai No.4†with strong regenerative capacity should be selected to accumulate regenerative sorghum. Third, timely and early harvest of the first season: When the middle grains on the ear red when harvested in time, leaving enough time for reproductive sorghum. 4. Apply sufficient bud and promote bud fertilizer: fertilize 7-10 days before harvest in the first season. Mushi 1,000 kilograms of human feces or 10 kilograms of urea should be used to prevent aging. And pay attention to drought and buds. 5. Reasonable retention of piles: In order to ensure that the regenerating seedlings are strong and tidy, it is better to leave the piles at a height of 2 knots near the ground, and leave 3-4 cm of piles. Cover the straw with straw in front of the crops in the previous season to moisturize the drought and reduce water evaporation. . Keep piles high, spikes are not neat and production is low. Keep piles too low and seedlings weak. 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. Six, Shi fat Miao Fei: After the first quarter, immediately cultivator, 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. Seven, sparse seedlings: after the regeneration buds are drawn out, in order to make the seedlings grow uniformly, the sparse seedlings should be carried out in the 2-3 leaves, in addition to leaving on the left, in addition to the weak and strong, in addition to squeeze uniform, generally each seedlings left 1 - Two are appropriate (one bud for the net and two buds for the intercropping). The pest control and other management of the cultivation of sorghum in the season of regeneration were conducted in the same season as the first quarter.