"One year's plan is in the spring." Doing a good job in improving citrus production and quality in the spring plays an important role. In order to assist the majority of citrus farmers in the citrus citrus training, the following technical opinions were specifically proposed:
Adult Results Orange Pebbles:
First, drain the drain. There is much rain in spring, and because the citrus roots are not resistant to waterlogging, it is necessary to strengthen the work of clearing the ditch and drain water, and to open up the wells, gutters, and ditch, and keep the three communicating.
Second, open soil, cultivator weeding. The citrus rhizosphere needs good permeability. For those who engaged in anti-freezing work in last winter, they should promptly open the earth. Generally, the citrus cultivator is cultivated once in 2 to 3 years, and the compaction of the orange soil should be ploughed once in sunny days. The cultivator has a depth of 10 to 20 cm. However, the surrounding and nearby areas should be ploughed, and the roots and roots must not be damaged. Deep plowing in other areas. In combination with cultivators, weeds are thoroughly removed and brought out of the park for centralized treatment.
Third, chase fertilizer materials. For citrus groves that last year had a large amount of fruit or were weakly grown and had not applied "fruit-fertilizer", they should chase fertilizer as early as mid-March. Fertilization should be based on surface fertilization and supplemented with foliar dressing. The amount of ground fertilizer is 1 to 1.5 kilograms per plant, and the growth potential is normal and less applied. Fertilizer application should be based on bio-organic or citrus-specific fertilizers, but no chlorine-containing compound fertilizers. The method of application is: within 1 to 2 days before the middle to small rain, spread uniformly between the trees and between the rows within 80cm, and it should not be applied before heavy rain to prevent the loss of nutrients. Foliage spraying should use 0.3% urea plus 0.2% potassium dihydrogen phosphate, and other fertilizers with significant fertilizer effect can also be used. Acid soil combined with cultivator loose soil 150kg of lime per acre. Application of lime can supplement calcium nutrition, can neutralize soil acidity, can inhibit pests and diseases, and is conducive to high quality and high yield of citrus.
Fourth, plastic trim. Good ventilation and light conditions are required inside the citrus orchard. For the citrus groves that were not pruned or cleared in the last winter, a pre-emergent pruning should be carried out in March. The principle of pre-emergent pruning is “simplification of pruningâ€, that is, it should be rough and not suitable for thinning. The main branch pruning technique is to saw a central upright branch with large shading in the canopy. In addition, cross-branches are left to stay one, saw (scissors) in addition to pests with severe damage and dead (dead) branches and piles. The densely growing branches in the canopy should be properly removed, and the branches extending beyond the crown should be shortened. The pruned branches brought out of the park and burned. For cuts (saws) with larger cuts, the lighted surface should be flattened and coated with a protective agent or coated with a thin film.
Fifth, pest control. For those who did not have a clear garden in the winter of last year, a one-degree lime-sulfur mixture or 40% crystal lime sulfur 80-fold solution should be sprayed in the end of March. In addition, pay attention to prevention and control of flower buds, spider mites, leaf miners, anthrax, scab and other pests and diseases.
Low-yield garden renovation:
For soil-consolidated orchards with low organic matter content and low fertility level, the use of deep-buried green manure and the addition of high-quality organic fertilizers will be used to change the soil and change fertilizer.
For the low-yield and poor-quality orange orchards, high-risk varieties were used for variety improvement. From late February to early March, the fine varieties of scions were introduced to increase access. However, we must choose the species that suits the local ecological environment, has market prospects, high yield and high quality.
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