High-yield and high-quality cultivation techniques of red lime fruit

Cangshan County, Shandong Province, has introduced new varieties of red-calcium seedlings from Shanxi and Hunan for two consecutive years. After three years of trial planting demonstrations, it showed early fruitiness, with some plants bearing fruiting and two-year-old trees averaging. With a yield of 2 kilograms, the three-year-old tree has an average yield of 3.2 kilograms. The taste is good. It is large in size, bright in color, resistant to storage and transportation, and easy to cultivate. Its annual yield is high, and the annual net profit is 30,000 yuan. The high-yield, high-quality, and high-quality supporting cultivation techniques of red lime fruit are summarized as follows. First, the choice of garden. Red lime fruit is drought-tolerant, cold-tolerant, and barren-resistant. It has extremely strong resistance. All kinds of soils are in line with its growth requirements, and can produce results on shallow, barren hilly slopes. However, if you choose leeward sunny, the soil is fertile and deep. Sandy loam or other flatland gardens with sufficient fertilizer and water will grow even more well, and the fruit will grow large or even double. Second, planting seedlings. The leaves can be planted after germination, and some tree seedlings can be planted in the same year. The row spacing is 11 meters or 0.51 meters and the acres are planted with 661-3132 strains. Digging hole, hole length, width, depth of 30 cm. The conditions are best to dig deep, wide 40-50 cm wide trenches, raw and mellow soil separately stacked, 5000 kg of high-quality farmyard fertilizer per acre, mixed with 150 kg of potassium sulfate ternary compound fertilizer, can also be mixed The crushed straw or weeds are then blended with the mature soil and backfilled to amplify the water. After the water is dry, the prepared seedlings shall be planted according to their size and classification. When the seedlings are planted, they shall be filled with the solids, and the roots and stems of the original seedlings shall be maintained in depth. Remember not to plant them deeply. Third, watering and top dressing. Immediately after planting, water should be applied once a day, then water once in 7-10 days, and then water as appropriate depending on drought conditions. Before the wheat harvest and after the wheat harvest, it should be watered in a timely manner. If it is better to cover the mulch or grass mulch when planting. The red lime fruit must have three key water and fertilizer requirements during the year: the spring bud to flowering stage, top dressing watering to promote sprouting and flowering, and improving the fruit setting rate; the new shoots growing vigorously and the young fruit growing and top dressing watering can make the shoots grow robustly. , To promote the rapid expansion of young fruit; in early July, topdressing the fruit before the final peak of fruit growth, the effect of accelerating fruit enlargement. The first fertilization uses nitrogen fertilizer; the second fertilizes nitrogen, phosphorus and potassium ternary compound fertilizer; the third uses phosphate and potash fertilizer, and each applies about 50 kilograms per mu. For three top dressings, 7.5 kg of ferrous sulfate should be added. In the later period of fruit enlargement, the foliar dressing was performed more than three times. Foliar application of potassium dihydrogen phosphate, fruit red, organic iron fertilizer and so on. A high-quality farm organic fertilizer is applied in autumn after fruit harvest. Before the land is frozen, it is necessary to pour enough water to seal the frozen water, in order to benefit the root system from freezing and reduce the impact of drought in the early spring next year. Fourth, plastic trim. Red-calcium fruit generally adopts plexus shaping. The red-calcium seedlings planted that year, when the main branch grows to 30 centimeters, it is topping and topping once. When the branches grow to 30 centimeters, they are topping and topping again. For large seedlings of more than one year, they should be appropriately shortened in the early spring. Branches with a base less than 1 mm in diameter should be completely removed. Branches that are too long can be shortened to less than 30 cm. The trunk of seedlings is generally maintained at 30-40 cm. Branches about 5-10 cm above the top are generally not fully developed and should be cut off. The basal branches and root pods that germinate in the lower part of the cultivars generally retain 1-2 per year for the first three years, and they cannot retain too much, otherwise the original main arborous branches will soon become weak. After each year, 6-7 new basal shoots are selected as renewal branches. When winter cutting, 25-35 centimeters of each branch are cut short, and 7-15 ramets and 3-5 basal shoots can be germinated in the same year, and the second year is formed. A large number of flower buds, flowering results. Branches on the branches of the biennial were mainly sparsely sheared, and the remaining branches were long-distributed. Each year, some newly developed weak branches are trimmed and pruned. The perennial trunk can be shortened and retracted to 8-12 basal branches and 20-30 annual strong branches. The yield of this cluster can reach 1.5-2.5 kilograms and the yield per mu is 1500-2000 kilograms or more. 5. Thinning and fruit thinning. Red-calcium is easy to grow into flowers. Generally, the basal branches can blossom from the third quarter of the base. Each branch can open 2-8 flowers, most of which have 3-5 flowers, in order to obtain higher yield and Large fruits need to clear away some buds or flowers during flowering. When the size of young fruit green beans, the fruit thinning should be carried out. Generally, about 200 fruits per plant per year can be left and distributed on 3-4 basal branches. Maintaining a robust branch of 30 centimeters in length has 25 or so fruits, 10-20 centimeters of moderate tree branches have 10 or so fruits, and weak branches have 5 or so fruits. Six, pest control. Red lime fruit has less pests and diseases, pest control can spray 3-5 degrees lime sulfur before germination, which can reduce the occurrence of pests. When there is much rain and humidity, triadimefon, triadimefon, thiophanate and other agents can be used to control powdery mildew 1-2 times. Insect pests are mainly aphids, which can be controlled with 2.5% kung fu or imidacloprid.