CN113141950A - Labor-saving efficient green ecological organic combination citrus cultivation method - Google Patents

Abstract

The invention discloses a citrus cultivation method organically combining labor saving, high efficiency and green ecology, which comprises the steps of land selection, soil improvement, planting, fertilization and cultivation management, and the invention staggers the peak time of citrus sales to ensure the citrus sales price and promote the income increase; in the aspect of fertilization, potassium fertilizer, farmyard clothes and refined organic fertilizer are applied for a plurality of times, so that the fruit quality is ensured. The method specifically comprises the following steps: 1. the improved seedling raising technology comprises the following steps: culturing virus-free citrus seedlings by using a nutrition bag; 2. the improved planting technology: adopting mechanical digging planting soil moisture to plant in a pond; 3. the fertilization technology is improved; 4. the improved irrigation technology comprises the following steps: the original furrow irrigation and irrigation are changed into near-ground micro-spraying. 5. The improved pruning technology is as follows: 6. improve the technology of preventing and controlling diseases, pests and weeds.

Description

Labor-saving efficient green ecological organic combination citrus cultivation method

Technical Field

The invention belongs to the technical field of fruit cultivation, and particularly relates to a labor-saving efficient green ecological organic combination citrus cultivation method.

Background

Citrus originates from southeast asia and has many species, mainly orange, grapefruit, lemon and scaleable species. Most citrus species, whose fruits can grow to winter, are classified as early-ripe and late-ripe. Lemons may produce results twice a year when high moisture stress causes forced flowering. Citrus is a long green plant. In most cases, citrus branches grow in stages, except for lemons. In Huaning county, there are 3-4 growth periods, the most prominent of which begins at the beginning of 2 months in spring, new shoots begin to grow and flower, and shoots that flower in summer grow rapidly. With the increase of the tree age, the growth vigor of the branches is weakened, but a certain growth vigor can be maintained through pruning. When oranges are grown in colder regions, the flowering time is shortened, which may also be the reason why citrus yields in these countries are not high. The main area of citrus growth is between 40 degrees north and south latitude, and its leaves can survive for 1-2 years. Growth of citrus root lines is dependent on temperatures above 13 degrees celsius. During freezing or drought seasons, the root system stops growing. Once the temperature rises and the water increases, the root system can resume growing. Ripening of citrus fruits depends on the total soluble material to acid ratio in the fruit, which is available for commercial markets when this ratio reaches 6: 1. The color of the peel changes depending on the temperature, and a decrease in temperature accentuates the color of the blonde. In addition, fruit ripening is also associated with summer temperatures, which can lead to premature ripening when high temperatures are reached early. Citrus can also grow in tropical regions, but only in those regions where the winter is wet, cold, and the summer is dry and hot.

At present, a lot of farmers plant oranges, but most oranges are mature in a bundle pile, so that the supply and demand of the oranges in the market are larger, a large number of oranges are lost, and the sale and income of the farmers are reduced, therefore, the development of an orange planting method which can solve the technical problem and can promote early ripening, stabilize yield and increase yield and ensure the fruit quality is very necessary.

Disclosure of Invention

The invention aims to provide a labor-saving efficient and green ecological organically-combined citrus cultivation method.

The invention aims to realize the method, which comprises the steps of land selection, soil improvement, planting, fertilization and cultivation management, and specifically comprises the following steps:

A. selecting land: selecting mountainous regions, hills or flat lands of the middle subtropical zone and the northern subtropical zone;

B. soil improvement: deeply loosening soil, and then adjusting the soil fertility to 3 grades, namely adjusting the main nutrients of the soil as follows: 2-3% of organic matter, 0.1-0.15% of total nitrogen, 90-120 PPM of quick-acting nitrogen and 10-20 PPM (P) of quick-acting phosphorus₂O₅) 100-150 PPM (K) of quick-acting potassium₂O), slow release potassium 300-400 PPM (K)₂O）；

C. Planting: planting citrus plants according to the plant row spacing (1.5-1.7) mx (2-2.5) m;

D. fertilizing: fruit fertilizer, spring bud fertilizer and fruit strengthening fertilizer are collected all year round, and the spring bud fertilizer is applied 7-10 days before the early germination of 2 months every year; applying fruit-strengthening fertilizer at the end of 4 months and at the beginning of 5 months every year; applying fruit picking fertilizer after fruit picking at 8-11 months every year;

E. cultivation management: adjusting the soil humidity to 30-50% before fruit ripening to keep citrus leaf wilting for 7-10 days, and simultaneously ditching and dehumidifying; agricultural control, physical control, biological control, ecological regulation and control and selection of high-efficiency, low-toxicity and low-residue chemical pesticides are adopted to control anthracnose, scab, mites, leaf miner and scale insects.

The invention staggers the citrus sale peak time to ensure the citrus sale price and promote the income increase; in the aspect of fertilization, potassium fertilizer, farmyard clothes and refined organic fertilizer are applied for a plurality of times, so that the fruit quality is ensured. The method specifically comprises the following steps: 1. the improved seedling raising technology comprises the following steps: culturing virus-free citrus seedlings by using a nutrition bag; 2. the improved planting technology: adopting mechanical digging planting soil moisture to plant in a pond; 3. the fertilization technology is improved; 4. the improved irrigation technology comprises the following steps: the original furrow irrigation and irrigation are changed into near-ground micro-spraying. 5. The improved pruning technology is as follows: 6. improve the technology of preventing and controlling diseases, pests and weeds.

The invention has the advantages that:

first, promote the premature of Huaning orange

(1) The super-early maturing variety Dafu, Gongben and Rinan No. 1 can be matured in batches and marketed in 25 to 10 months from 6 months to 7 months under the management of a special cultivation technology in a special geographical ecological environment of Huaning county. Is 35 to 40 days earlier than the similar species in China.

(2) The common early-maturing variety is matured in batches from 7 months to 25 months to 8 months and 10 days to be put on the market. Is 35 to 40 days earlier than the similar species in China.

(3) Crystal sugar orange and ponkan are matured in batches from 10 months to 25 days to 11 months and 5 days to be sold on the market. Is 35 to 40 days earlier than the similar species in China.

Secondly, promoting the quality of Huaning citrus

(1) External sensory characteristics: the Huaning orange is high oblate or oblate, the fruit is orange or orange yellow when ripe, the fruit surface is bright, the smell is fragrant, the pericarp is slightly bigger and obvious, the peel is easy to peel, and the weight of a single fruit is 120-180 g.

(2) The internal quality index is as follows: the Huaning citrus has the advantages of moderate peel thickness, no pit, orange red pulp, tender meat, much juice, slag, moderate sour and sweet taste, rich flavor and rich nutrition, and has the effects of regulating qi, tonifying spleen, moistening lung and relieving cough. Wherein, the vitamin C is more than or equal to 30mg/100g, the soluble solid is more than or equal to 9.8 percent, the total sugar is more than or equal to 7.3 percent, and the total acid is less than or equal to 1.50 percent.

Third, promote Huaning orange to popularize the technology of little sprinkling near the earth

In 2009 and 5 months, the expert Yangxiwei invented "near-ground self-pressure micro-spraying device" obtains the national patent. In 2011, 1 month, the invention of the flexible anti-blocking spray nozzle for spray irrigation and the plug-in type pipe joint for plastic pipelines of Yangxiwei is patented by the national utility model. According to introduction, the near-ground micro-spraying technology realizes innovation breakthrough of seven technologies such as pipeline, gate valve layout, spray head application and the like, regional irrigation can be realized, single-plant sprinkling irrigation is realized, and the spraying height can be freely adjusted. The method has the advantages of low investment cost, easy installation and maintenance, long service life, water and labor saving, adjustment and improvement of microclimate of the orchard, soil and fertilizer conservation, protection of the cultivation state of the terrace, stability of the side slope and convenience for farming activities. Meanwhile, the operation, the use and the management are simple and convenient, and the sprinkler can spray simultaneously or separately according to the flowing water pressure by controlling the gate valve. The technical area is 114475 mu popularized in 2019 in the county, and accounts for 95% of 120500 mu of the total area of the county oranges.

Detailed Description

The present invention is further illustrated by the following examples, which are not intended to be limiting in any way, and any modifications or alterations based on the teachings of the present invention are intended to fall within the scope of the present invention.

The citrus cultivation method organically combining labor saving, high efficiency and green ecology comprises the steps of land selection, soil improvement, planting, fertilization and cultivation management, and specifically comprises the following steps:

A. selecting land: selecting mountainous regions, hills or flat lands of the middle subtropical zone and the northern subtropical zone;

B. soil improvement: deeply loosening soil, and then adjusting the soil fertility to 3 grades, namely adjusting the main nutrients of the soil as follows: 2-3% of organic matter, 0.1-0.15% of total nitrogen, 90-120 PPM of quick-acting nitrogen and 10-20 PPM (P) of quick-acting phosphorus₂O₅) 100-150 PPM (K) of quick-acting potassium₂O), slow release potassium 300-400 PPM (K)₂O）；

C. Planting: planting citrus plants according to the plant row spacing (1.5-1.7) mx (2-2.5) m;

D. fertilizing: fruit fertilizer, spring bud fertilizer and fruit strengthening fertilizer are collected all year round, and the spring bud fertilizer is applied 7-10 days before the early germination of 2 months every year; applying fruit-strengthening fertilizer at the end of 4 months and at the beginning of 5 months every year; applying fruit picking fertilizer after fruit picking at 8-11 months every year;

E. cultivation management: adjusting the soil humidity to 30-50% before fruit ripening to keep citrus leaf wilting for 7-10 days, and simultaneously ditching and dehumidifying; agricultural control, physical control, biological control, ecological regulation and control and selection of high-efficiency, low-toxicity and low-residue chemical pesticides are adopted to control anthracnose, scab, mites, leaf miner and scale insects.

The slope of the hills and hills in the step A is less than 25 degrees.

And B, the thickness of the deep scarification in the step B is 50-60 cm.

And B, the soil improvement also comprises the step of adjusting the pH value of the soil to 5.5-6.5.

And C, planting, namely performing density improvement and thinning when canopy closure occurs among the plants in 5-6 years of citrus fruiting.

The density-changing thinning is to perform 1 thinning of 2 plants, for example, the thinning of 200 plants per mu is adjusted to 150 plants per mu.

And D, taking quick-acting nitrogen and phosphate fertilizer as main components in the spring bud fertilizer.

And D, the fruit strengthening fertilizer mainly comprises a potassium fertilizer.

The fruit picking fertilizer in the step D is a refined organic fertilizer, and the nitrogen-phosphorus-potassium ratio of the refined organic fertilizer is (0.8-1.2): (0.3-0.5): (1.1-1.5).

The high-efficiency low-toxicity low-residue chemical pesticide in the step E is spirodiclofen (acarid-dangerous), imidacloprid, abamectin, propargite (propargite), 99% engine oil emulsion, mancozeb or imazalil.

The invention is further illustrated by the following specific examples:

example 1

1. Choosing the garden

Selecting a garden before planting: one is that the climatic conditions are favourable. The citrus unshiu in the middle and sub tropical zone, the northern and sub tropical zone and the marginal zone of the northern and sub tropical zone are suitable for planting the citrus unshiu in China. Secondly, the place with water source is selected, such as mountain land, hilly land and flat land, but the slope of the mountain land and hilly land should be less than 25 degrees. Thirdly, selecting a place with convenient traffic to build a garden so as to facilitate the transportation of fruits. The original manual excavation planting ditch planting is improved, and the existing mechanized slope is changed into the ladder digging pond planting.

2. Selecting good variety

The selection of variety is one of the keys for obtaining high quality and stable yield and good economic benefit. The variety which has large market demand and is suitable for local planting, such as No. 1 of the south of China, the Japan, Dapu, Xinjin and the like, is selected.

3. Reasonable close planting for dense changing into sparse

The vigor of the super-early-maturing wenzhou mandarin orange is generally weak, the tree body is small, the planting density can be slightly dense, 200 mountains are planted in each mu, and the row spacing of the plants is 1.5 meters multiplied by 2 meters; 150 plants are planted in each mu of open field, namely the row spacing of the plants is 1.7 meters multiplied by 2.5 meters. When the plants are closed in a period of 5-6 years or more after fruiting, the plants are densely changed into sparsely changed, 1 plant is intercropped among 2 plants (the planned intercropping trees are used for pruning to control the crown, and the intercropping is carried out when the control is difficult), and 150 plants are planted in the mountainous region per mu. 100 plants are planted in each mu of land.

4. Improving soil

The cultivation of orange in mountainous and flat land is characterized by that it has the soil requirement of "four is suitable and four is not suitable", i.e. it is suitable for soil to be loosened and not to be sticky, deep and not to be shallow, and it is suitable for acid and not to be alkali, and it is suitable for fertilizer and not to be thin, i.e. it is selected from slightly acidic soil with loose soil, deep soil layer and rich soil. The requirements are not easy to be met by general soil, so the soil improvement and fertilization are carried out before or after the citrus is planted. It should be noted that, in the cultivation of the extremely early-maturing wenzhou mandarin oranges, the high-quality and stable-yield cultivation soil is not too fertile or too deep, otherwise the early fruiting of the tree bodies and the improvement of the fruit quality are influenced.

5. Scientific formula fertilization

The fertilizer is applied according to a soil testing formula, the types and the application amount of the fertilizer are selected according to the needs of trees and the fertilizer supply condition of soil, and firstly, the application of organic fertilizer, particularly the application of refined organic fertilizer, is increased, and the organic fertilizer is applied after fruit picking in 8-11 months. And secondly, the traditional method of applying nitrogen fertilizer and phosphate fertilizer partially but neglecting potassium fertilizer is changed, and the proportion of nitrogen, phosphorus and potassium is adjusted to 1.0: 0.4: 1.2 from the original 1.0: 0.4: 0.3 for controlling the nitrogen fertilizer, stabilizing the phosphate fertilizer and applying the potassium fertilizer additionally. The content of soluble solid in the fruits of Dapu variety is up to 11.5% and is improved by 1.5% compared with the former method. The fertilizing amount is determined according to the yield: for every 1000 kg of fruit produced, 3 kg of nitrogen (N), 1.4 kg of phosphorus (P2O 5) and 3.2 kg of potassium (K2O) are added, and the ratio of the nitrogen (N) to the phosphorus (P2O 5) to the potassium (K2O) is 1.0: 0.4: 1.2. Thirdly, the fertilizer application period is well held: applying fruit picking fertilizer, spring bud fertilizer and fruit strengthening fertilizer for 3 times all year round, wherein the fruit picking fertilizer is applied after picking, organic fertilizer and nitrogen fertilizer are mainly used, and phosphorus fertilizer and potassium fertilizer are matched, and the fertilizing amount accounts for 20-30% of the total annual fertilizing amount; spring bud fertilizer is applied 7-10 days before the beginning of germination in 2 months, quick-acting nitrogen and phosphate fertilizer are taken as main materials, and the fertilizing amount accounts for 20-25% of the total annual fertilizing amount; the strong fruit fertilizer is applied at the beginning of 5 months at the bottom of 4 months, potassium fertilizer is used as the main component, phosphorus and nitrogen fertilizers are applied, and the fertilizer is preferably applied together with refined organic fertilizer, and the fertilizer application amount accounts for 40-50% of the total annual fertilizer application amount. For the first fruit trees, fertilizing in the first half year should control nitrogen fertilizer to facilitate fruit setting and control summer shoots; in the next half of the year, nitrogen and potassium fertilizers can be added before fruit expansion and autumn shoots are extracted. And (3) carrying out soil testing and formulated fertilization on the citrus seedlings, increasing the application of organic fertilizer, and reducing the fertilization times and fertilization time and times: spring fertilization: applying the fertilizer 1 time from the bottom of 1 month to the beginning of 2 months, applying the fertilizer 2 times in the early summer period, applying the fertilizer 1 time in the late autumn period, and stopping applying the fertilizer after 10 months to dry the organic fertilizer to form organic fertilizer powder which is uniformly stirred to form a finished fertilizer; fertilizing amount: in the step S5, the fertilizer application amount is 40-65 kg/mu each time.

6. Moderate water control

The water is properly controlled before the fruit is ripe, which is beneficial to increasing the sugar content of the fruit and improving the quality. The specific measures are as follows: firstly, water control. The soil is kept to be properly dry, namely the citrus leaves are slightly wilted (the leaves are slightly curled in the daytime, and the leaves are spread in the nighttime and in the early morning, generally lasting 7-10 days), so that the sugar content of the fruits can be improved. Second, tree disk covering. The most effective method is that the white-black double-layer double-color composite mulching film is paved on an orchard or a tree tray, so that the water control effect can be achieved, the water control promotes flower bud differentiation, and the flower quantity in the next year can be increased; the mulching film reflects sunlight to irradiate the fruits, so that the fruits are uniformly colored; the fruit floating skin can be reduced; can reduce the damage of diseases and pests under the tree crown. The water control and mulching time of the extremely early-maturing Wenzhou mandarin oranges is preferably after 7 months of rain, and if the soil is too dry before mulching, proper water can be irrigated firstly, if the soil does not rain for a long time after mulching, water can be sprayed or watered on the tree crowns, and the influence of drought on the tree bodies is prevented. And removing the mulching film after fruit harvesting. Thirdly, ditching and dehumidifying are carried out, which is beneficial to increasing the sugar content of the fruits.

7. Reasonable fruit thinning and protecting

As long as the soil, fertilizer and water management is kept up to and well controlled for the big and small years, the hormone is not adopted to preserve the fruits of the extremely early-maturing Wenzhou mandarin oranges in the normal years. The fruits are ensured to be preserved by adopting nutrient solution or cultivation technology according to the strength of the trees. And (3) spraying 0.1% borax (boric acid), 0.2% urea and 0.2% monopotassium phosphate solution on the irregular foliage of the weak trees with a large amount of flowers for 1-3 times after blooming. And (3) carrying out tip control and fruit retention on trees with less flowers and more vigorous tree vigor, erasing part of spring tip nutrition branches at the top of the crown, and thinning the extracted summer tips before and after 7 months.

From the viewpoint of improving the high-quality fruit rate and economic benefits, thinning fruits, particularly trees with excessive fruits, are emphasized. Fruit thinning is carried out twice: the first time is carried out after the first physiological fruit drop, and abnormal fruits, harmful fruits caused by diseases and pests, mechanically damaged fruits, and big fruits with thick tree crowns and peripheral fruit stalks (the fruits have poor quality and are usually sunscald); and after the second physiological fruit drop is finished, performing the second physiological fruit drop according to the ratio of leaves to fruits, wherein the ratio of leaves to fruits is 30-35: 1, and moderate or slightly small fruits (good quality) are reserved.

The crown of the super-early-maturing wenzhou mandarin orange is relatively developed, the fruits are easy to be sunscald, and the prevention needs to be started before and after 7 months. The common method is to cover the fruit bag on the top and the periphery of the middle and upper part which are easy to be sunburned, or paste white paper on the affected part when the initial sunburning symptom (yellow spot) appears, which has good prevention effect.

8. Simplified pruning technology for oranges

At present, due to the large-scale transfer of rural labor, workers in citrus gardens are aging day by day, labor cost is increased year by year, the contradiction between the price of oranges going up and the expenditure of labor cost is increased day by day, and pruning with big branches is adopted. The orange pruning is simplified, the method of thinning fruits rather than branches is provided, the labor and the money are saved, and the good effect is achieved. Increasing both production and income. The simplified pruning technology is adopted for dredging, and the vertical branches are removed, so that the crowns are reduced into natural open heart shapes, labor is saved, the ventilation and light transmission conditions are improved, the plant diseases and insect pests are reduced, and the fruit quality is improved. The yield per mu is increased by 5 to 10 percent.

(1) And the dwarf cultivation is carried out by breeding and utilizing the dwarf low-stem variety and the stock, so that the labor efficiency of orchard operation is improved, and the labor intensity is reduced.

(2) Changes the traditional fine pruning or leaving as the non-pruning into the pruning of big branches

The height of the trunk is controlled to be below 30 cm, 3-4 main branches are reserved, and the height of the tree is controlled to be below 2.5 m. And deleting 1-year-old branch tips and 2-3-year-old branch sequences with branch angles smaller than 45 degrees year by year. And timely pinching 5-8 leaves of the overgrown new shoots germinated on the big branches. And (5) deleting the young sprout. Reasonably keeping the branch groups, keeping the lateral branches horizontal, and retracting the branch groups once in 3-5 years.

(3) Changing artificial bud picking and tip placing into chemical control tip

And in the late growth stage of spring shoots, before the germination of summer shoots, in the sprouting stage of the summer shoots and in the late elongation stage of autumn shoots, the growth regulators with different concentrations are sprayed on the tree crowns, so that the elongation of the spring shoots is inhibited, the sprouting and tillering of the summer shoots are also inhibited, the length of the autumn shoots is shortened, the early maturity is realized, and the cold resistance is enhanced.

(4) The method changes the simple use of plant growth regulator into the addition of plant growth regulator into nutrient solution for comprehensive fruit preservation

After the first physiological fruit drop is finished and before the second physiological fruit drop, spraying nutrient solution or adding 2, 4-D5. improved harvesting tool on the leaf surface;

pruning big branches to reduce the height of the crown, and adopting a special fruit picking bag and a special tool when picking. The loading and unloading are convenient, the labor and the force are saved, and the work efficiency is improved. The branches with diseases and pests, dead branches, over dense branches and vigorous growing branches on the upper parts of the crowns are cut off, the ventilation and light transmission conditions of the crowns are improved, the tree vigor is kept medium or medium and weak, and high-quality fruits are produced.

9. Green ecological disease and pest prevention and control

The high quality and safety of fruits are the common requirements of producers and consumers, so the green comprehensive prevention and control technology is adopted for diseases and pests such as anthracnose, scab, mites, leaf miner, scale and the like, namely, the combination of agricultural prevention and control, physical prevention and control, biological prevention and control, ecological regulation and control and scientific, reasonable and safe use of chemical pesticides is adopted. The yellow sticky trap (paper) and the mite-catching bag are hung in the garden to be conditioned, and a frequency vibration type insect-killing lamp is erected to use less chemical pesticide as far as possible. The disease and insect conditions are mastered before the medicine is taken, and the medicine is taken according to the environment and the phenological period of the citrus fruit trees when the control index is reached. The pesticide can be high-efficiency, low-toxicity and low-residue, such as spirodiclofen (acarid-dangerous), imidacloprid, abamectin, propargite (propargite), 99% engine oil emulsion, mancozeb, imazalil, etc.

Claims (10)

1. A labor-saving efficient green ecological organic combination citrus cultivation method is characterized by comprising the steps of land selection, soil improvement, planting, fertilization and cultivation management, and specifically comprises the following steps:

A. selecting land: selecting mountainous regions, hills or flat lands of the middle subtropical zone and the northern subtropical zone;

B. soil improvement: deeply loosening soil, and then adjusting the soil fertility to 3 grades, namely adjusting the main nutrients of the soil as follows: 2-3% of organic matter, 0.1-0.15% of total nitrogen, 90-120 PPM of quick-acting nitrogen and 10-20 PPM (P) of quick-acting phosphorus₂O₅) 100-150 PPM (K) of quick-acting potassium₂O), slow release potassium 300-400 PPM (K)₂O）；

C. Planting: planting citrus plants according to the plant row spacing (1.5-1.7) mx (2-2.5) m;

D. fertilizing: fruit fertilizer, spring bud fertilizer and fruit strengthening fertilizer are collected all year round, and the spring bud fertilizer is applied 7-10 days before the early germination of 2 months every year; applying fruit-strengthening fertilizer at the end of 4 months and at the beginning of 5 months every year; applying fruit picking fertilizer after fruit picking at 8-11 months every year;

E. cultivation management: adjusting the soil humidity to 30-50% before fruit ripening to keep citrus leaf wilting for 7-10 days, and simultaneously ditching and dehumidifying; agricultural control, physical control, biological control, ecological regulation and control and selection of high-efficiency, low-toxicity and low-residue chemical pesticides are adopted to control anthracnose, scab, mites, leaf miner and scale insects.

2. The citrus cultivation method with organic combination of labor saving, high efficiency and green ecology according to claim 1, wherein the slope of hilly and hilly area in step A is less than 25 °.

3. The citrus cultivation method combining labor saving, high efficiency and green ecology organically as claimed in claim 1, wherein the thickness of the deep scarification in the step B is 50-60 cm.

4. The citrus cultivation method combining labor saving, high efficiency and green ecology organically as claimed in claim 1, wherein the soil improvement of step B further comprises adjusting the pH value of the soil to 5.5-6.5.

5. The citrus cultivation method combining labor saving, high efficiency and green ecology organically as claimed in claim 1, wherein the planting of step C further comprises dense thinning when canopy occurs between plants within 5-6 years of citrus fruiting.

6. The citrus cultivation method combining labor saving, high efficiency and green ecology organically, according to claim 5, wherein the dense thinning is performed by thinning 2 plants by 1 plant, for example, thinning 200 plants per mu before to 150 plants per mu.

7. The citrus cultivation method with organic combination of labor saving, high efficiency and green ecology as claimed in claim 1, wherein the spring bud fertilizer in step D is mainly quick-acting nitrogen and phosphate fertilizer.

8. The method for cultivating citrus fruit with the combination of labor saving, efficiency and green ecology according to claim 1, wherein the fertilizer for fruit growth in step D is mainly potassium fertilizer.

9. The citrus cultivation method organically combining labor saving, high efficiency and green ecology according to claim 1, wherein the fruit picking fertilizer in the step D is a refined organic fertilizer, and the nitrogen-phosphorus-potassium ratio of the refined organic fertilizer is (0.8-1.2): (0.3-0.5): (1.1-1.5).

10. The citrus cultivation method organically combining labor saving, high efficiency and green ecology according to claim 1, wherein the high efficiency, low toxicity and low residue chemical pesticide in step E is spirodiclofen (acarid-dangerous), imidacloprid, abamectin, propargite (propargite), 99% engine oil emulsion, mancozeb or imazalil.