Citrus high-quality cultivation techniques Citrus quality and price are closely related. In citrus sales in recent years, the situation of high quality and low prices has become increasingly evident. In the more mature market economy, consumers and distributors will pay more attention to the appearance quality and intrinsic quality of citrus.
The cultivation of high-quality citrus should focus on the prevention and control of pests and diseases mainly caused by Citrus grandiflora, completely eliminate the impact of Ponkan events; strengthen the management of fertilizers and waters, pay attention to the application of fruits and fertilizers, and apply formula fertilization to improve the nutritional level of citrus fruits. , fundamentally improve the quality of citrus; seize the favorable opportunity, do a good job in summer pruning, optimize the tree structure, improve lighting conditions, lay a solid foundation for the high yield and quality of citrus this year and next year; implement graded harvesting, sales in batches, Promote the perfect harvest, so that the city's fine varieties of citrus to achieve the desired quality, improve market competitiveness.
First, do a good job of comprehensive prevention and treatment of citrus pests and diseases that are dominated by citrus fruit flies, and completely eliminate the impact of the event.
Second, pay attention to the application of fruit growth promoting fertilizer, the implementation of formula fertilization, improve tree nutrition, improve citrus quality.
The fruit-promoting fertilizer is the most important one-year fertilization for citrus, and it plays an important role in citrus production and quality improvement this year and next year.
1, fertilization period: strong fruit-promoting fertilizer is generally applied in mid-to-late June. This year, you will find out what you are looking for, how you can do it, how you can do it, how you can do it, what you can do, what you can do, and what you want to do.
2, fertilization type and quantity: Wenzhou mandarin fertilizer, it is best to use low-nitrogen nitrogen, phosphorus, high potassium citrus formula fertilizer (such as Yi Shi Zhuang II fertilizer). Plants produce 50-100 pounds of trees, each plant fertilizer application 2-3 pounds, cake fertilizer 2-3 pounds. Wenzhou oranges should prohibit the use of elemental nitrogen fertilizers to avoid causing rough skin and large fruit, and reduce quality; Jin Shuigan and non-nuclear-free å´è¹‹ 詈 詈 詈 coal ? coal 17. 资手å°8. å‘’æ°æ¯æ¶• 童ㄓ门 浞 浞 浞 浞 çœ çœ çœ çœ çœç“´? 0-100 kg when the citrus trees, each plant fertilizer 3-4 kg, cake fat 2-3 kg.
3, fertilization method: strong fruit to promote tip fertilizer when the application should be carried out in the gap between the crown outside the open ditch, groove width 20-30 cm. The ditch is about 15 cm deep. The soil shall be timely covered after fertilization, and irrigation should be conducted promptly after the drought.
Third, do a good job in summer pruning, optimize the tree structure, improve lighting conditions, to lay a solid foundation for the high yield and quality of citrus this year and next year
Citrus summer pruning is of great significance to the implementation of citrus cultivation and high-quality cultivation. This year's summer pruning will focus on promotion. The charcoal man asks the man to sue the player. 13.
1, summer pruning time: June 20 - July 10. As a result, citrus trees with poor fertility and water conditions can be sheared as early as possible; citrus trees with less fruiting conditions and good fertilizer and water conditions should be properly postponed.
2. Methods for summer pruning: adult tangerine trees that are completely unproductive are about 1.5 to 2.0 meters above the ground (about 1.5 meters high in the middle of the canopy and about 2.0 meters in height around the canopy), and provide comprehensive coverage of branches with a thickness of 0.6 cm or more. Shortcut or retraction. For the main branch, the results of this year, there are few results of the Satsuma mandarin tree, you can properly remove the redundant main branch and vice main branch, keep a reasonable distribution of 3-4 main branches. After trimming, make the crown look like a happy one. When pruning, branchlets and leaves in the crown should be kept as much as possible to promote rapid restoration of the tree. Pruning should be combined with fertilization for proper rooting. The partial result of the tangerine tree uses alternate results, alternately updated pruning methods. That is, the branches that retain the results, short or retract the branches that have no result. The summer pruning of G. edulis is mainly the result of short or retracting the upper part of the canopy with less than 0.6 cm in thickness, leading to early autumn shoots; for the excessive fruit set of Jinshui, about June 15th, the combination of sparse As a result, short-cut or retracted parts of the upper part of the canopy with a thickness of 0.6 cm or more resulted in a certain amount of early autumn shoots, balanced growth of the tree vigor, and sufficient maturation for the next year.
Fourth, promotion of ripe harvest, the implementation of grading, batch sales, improve the ability to occupy the market
Only when the fine citrus varieties reach full maturity can the excellent quality be reflected. The early harvesting and harvesting of citrus fruits will not meet the requirements due to poor quality, which will lead consumers to mislead the citrus products and is not conducive to citrus sales. Mixed use of mixed citrus is not conducive to the implementation of super agricultural docking, is not conducive to improving the efficiency of the citrus industry.
Citrus high quality fruit standard:
Satsuma mandarin orange: The appearance is oblate, thin, smooth, medium-sized fruit (55-65mm), uniform coloring, orange-red or orange-yellow, the fruit surface is clean without scars; the endoplasmic reticulum requires high sugar content, moderately sweet and sour, slag ; There are no markets for Satsuma mandarin, which is a rough and big fruit, sour and sour.
Mandarin: It is required that the appearance of orange or orange, smooth, clean and no scar on the fruit surface, the fruit size is about 70-75mm; the endoplasmic quality requires sweet, rich aroma, slag. Small fruit, uneven color, taste acid, no slag? å´ Beach Huangpu team??/P>
(Dangyang Specialties Technical Center Dangyang Agriculture 110 Zhu Liqing)