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  • 枇杷苗怎么样管理能高产
  • 本站编辑:杭州余杭赛金果枇杷研究所有限公司发布日期:2020-01-07 18:34 浏览次数:
 一、 枇杷的栽种气侯自然环境:
        枇杷苗必须较高的溫度,通常在年平均温度13℃左右即能一切正常生长发育,但如今苏北地域新科学研究出的枇杷树能够在年平均温度在-12~40℃一切正常生长发育。
       枇杷树的盛花期在冬末春初,超低温气温将危害其结果实。要是平均气温-6℃时对盛开、-3℃时对批杷幼果即造成冷害;在12℃左右批杷蜂花粉刚开始出芽,30℃上下蜂花粉出芽最好。但平均气温或土壤温度达40℃左右时,枝干和根生长发育滞缓而欠佳,果子在採摘前7~16天遇到45℃的高溫,非常容易造成日灼损害,以至于丧失服用使用价值。
批杷对土壤层规定关不紧,适应能力范围广,通常土壤层均能生长发育結果,但以含砂或石砾较多松散土壤层生长发育不错。
      二、枇杷树的种类:
        枇杷的种类通常分成红沙批杷、白沙枇杷两种。红沙种类批杷长寿命、果型强、生产量高,但质量比不上白沙枇杷,比较常用的种类有圆种、生鸡蛋红等。
       白沙镇种类批杷苗则生长发育、生产量等都比不上红沙批杷,但质量优质,知名种类有圆种、育种、鸡蛋白等。
 三、枇杷苗的上肥:
       枇杷树1年需上肥3次。通常在批杷盛开前底肥关键以有机肥主导(能用有机肥料替代),施肥量占全年度总施肥量75%;
       在枇杷树春梢刚开始生长发育前的春肥以氮磷钾复合肥主导,占全年度施肥量30-40%;
       枇杷在采前或采后的夏肥以沤肥有机肥料主导,占全年度施肥量12%。
       四、枇杷树的矮化方式:
       枇杷树的矮化树干,关键发生变化则主杆形、层次形等矮化树型,选用拉枝、剪修等对策抑止顶端优势,促进树干横着生长发育;枇杷树的剪修通常在9月中下旬开展,在12月末完毕。
       五、枇杷苗的疏花疏果:
      对枇杷树开展初期疏花能够增加盛开限期,避免冷害;枇杷树通常在4月上旬开展匀果和水果套袋,在沒有遭受冷害、生长发育健硕的枝干每一花穗能够留2-4个果(中果型种类白玉每花穗留3-4个、大果型种类冠玉每花穗留2-3个),敏感的枝干每花穗留1个果。
1、 Natural environment of loquat planting climate:
Loquat Seedlings must have a high temperature, which usually means that they can grow and develop normally at an annual average temperature of about 13 ℃. However, loquat trees developed by new science in Northern Jiangsu can grow and develop normally at an annual average temperature of - 12-40 ℃.
At the end of winter and the beginning of spring, the fruit of loquat trees will be damaged by ultra-low temperature. If the average temperature is - 6 ℃, it will cause cold damage to the young fruit of the batch of Botrytis when it is in full bloom and - 3 ℃; when the batch of Botrytis bee pollen starts to sprout at about 12 ℃, it is best to sprout at 30 ℃. However, when the average temperature or soil temperature reaches about 40 ℃, the growth and development of branches and roots are slow and poor. The fruit will encounter 45 ℃ high temperature 7-16 days before picking, which is very easy to cause sunburn damage, so that it will lose the use value.
Generally, the soil layer can grow and develop, but the loose soil layer with more sand or gravel can grow and develop well.
2、 Types of loquat trees:
The species of loquat are usually divided into two kinds: red and white. The red sand variety has long life, strong fruit type and high production, but its quality is not as good as that of white sand loquat.
In Baisha Town, the growth, development and production of the seedlings are not as good as those of Hongsha, but the quality is high. The well-known species are round, breeding and egg white.
3、 Fertilization of Loquat Seedlings:
Loquat trees need to be fertilized three times a year. Generally, the key of basal fertilizer is organic fertilizer (which can be replaced by organic fertilizer) before the full bloom of the batch, and the amount of fertilizer application accounts for 75% of the total amount of fertilizer application in the whole year;
Before the growth and development of loquat spring shoot, nitrogen, phosphorus and potassium compound fertilizer was dominant, accounting for 30-40% of the total annual fertilization;
The summer fertilization of loquat before or after harvest was mainly composed of retting organic fertilizer, which accounted for 12% of the annual fertilization.
4、 Dwarfing way of loquat tree:
For the Dwarfing trunk of loquat tree, if the key change occurs, the Dwarfing tree types such as the main stem shape and the layer shape will be selected, and the countermeasures such as pulling branches and pruning will be adopted to prevent the top advantage and promote the growth and development of the trunk crosswise; the pruning of Loquat tree is usually carried out in the late September and completed at the end of December.
5、 Flower and fruit thinning of Loquat Seedlings:
In the early stage of loquat tree development, flower thinning can increase the blooming period and avoid cold injury; loquat tree usually carries out fruit blending and fruit bagging in the first ten days of April, and leaves 2-4 fruits per flower ear (3-4 fruits per flower ear for medium fruit type Baiyu, 2-3 fruits per flower ear for large fruit type Guanyu) and 1 fruit per flower ear for sensitive branches and stems.