The cemetery is warm and humid, with an average annual temperature of 13 ° C ~ 19 ° C, annual rainfall of more than 1000 mm, and the distribution is relatively uniform, and there is no obvious dry season where the growth is good. It has wide adaptability to soil and can grow on neutral, slightly acidic and calcium.
Seedling breeding
The earthworms are selected to be flat, the soil is fertile and moist, and the sandy loam, loam or clay loam is suitable for the sun, and the acid soil and the dry and thin soil are not suitable for gardens. The seedbed is well prepared before sowing, the bed surface is required to be flat, and the soil is finely divided. Before the bed is built, the bottom fertilizer is applied, and the manure water is drenched after the bed is built. If the phosphate fertilizer (superphosphate) is mixed, the effect is better. Before sowing, select the seeds with water, then soak them in warm water at 45 °C for 1 day and night, remove them and put them in the radish basket, and then sown when there are more than half of them. It is mainly spring sowing, but it can also be broadcast in autumn.
Management and maintenance
After the cedar seedlings were unearthed, according to the characteristics of each growth period, the corresponding management measures were adopted. In the early stage of growth, the growth of the underground part is greater than that of the aerial part. The seedlings are still shallow, the tissue is young, the water content is high, and it is easy to be killed by the drought. In this period, field management should be strengthened, weeding and loosening soil should be timely, irrigation should be carried out in a timely manner, the seedbed should be kept moist, and the accumulated water should be removed in time after rain, which is conducive to reducing the occurrence of red wilt. At this time, it is advisable to carry out the first inter-planting, leaving the superior to the inferior, leaving the thin and dense, and the soil after the seedling is 0.5~1.0cm, which is beneficial to avoid the sunburn hazard.
In addition to continuing to strengthen weeding and loosening soil, the cedar wood should also promptly apply quick-acting fertilizers, such as manure, manure, urea, etc., to ensure the nutrient supply of seedlings; the second seedling can be carried out in the middle of the fast-growing period. 1m seedlings 50~60 strains; nitrogen fertilizer should not be applied in the late stage of fast-growing period. In the late growth stage, the growth of eucalyptus grows slowly with the temperature, in order to promote the lignification of seedlings, form a strong top bud, prevent the length of the bud, prevent irrigation, and apply potassium fertilizer on the foliage.
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