CN105660126A - Cultivation method of weak light-tolerant leaf vegetable seedlings - Google Patents
Cultivation method of weak light-tolerant leaf vegetable seedlings Download PDFInfo
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- CN105660126A CN105660126A CN201610052736.2A CN201610052736A CN105660126A CN 105660126 A CN105660126 A CN 105660126A CN 201610052736 A CN201610052736 A CN 201610052736A CN 105660126 A CN105660126 A CN 105660126A
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- liquid fertilizer
- seedling
- cultural method
- leaf vegetables
- weak light
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C21/00—Methods of fertilising, sowing or planting
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
Abstract
The invention relates to the technical field of planting of leaf vegetables, and specifically discloses a cultivation method of weak light-tolerant leaf vegetable seedlings. The cultivation method at least comprises the following step: spraying a liquid fertilizer containing 15%-25% of organic carbon by weight on plant leaves of the leaf vegetables in a cultivation condition of artificial shading 70% and above. The cultivation method can effectively increase contents of chlorophyll (a and b) and total chlorophyll content of the leaf vegetable seedlings, while correspondingly improving a seedling index, improving the weak light tolerance of the leaf vegetable seedlings, reducing possibilities of the occurrence of excessive growth, lodging and albino seedlings, and effectively solving a problem of weaker growth of leaf vegetable seedlings under weak light stress.
Description
Technical field
The present invention relates to leaf vegetables planting technology field, particularly relate to the cultural method of a kind of leaf vegetables seedling weak light resistance.
Background technology
Leaf vegetables is the vegetable variety that China is important, and owing to there is the features such as quality is tender, local flavor is good to eat after its culinary art, have become as indispensable famous and precious vegetable on people's dining table, therefore widely cultivate in China different regions, and find a good sale in the ground such as Hong Kong, Macao, Southeast Asia and America and Europe.
Common leafy vegetable includes several big classes such as cabbage, green leaf vegetable class, Herba Alii fistulosi fragrant-flowered garlic class, bud Lay class, and at south China, spring and summer, modal leaf vegetables was water spinach. Water spinach has another name called water spinach Lay, logical dish, Herba Commelinae Bengalensis, rattan dish etc., is that Convolvulaceae is annual or the perennial herbaceous plant that overgrows. Originating in China's tropical rainy area, suitable growth is at sough, and being distributed mainly on Lingnan area is the green vegetable generally cultivated summer and autumn; Autumn and winter common leaf vegetables is Brassica campestris L. ssp.chinensis, and Brassica campestris L. ssp.chinensis is divided into early-maturing variety, medium variety and late variety.
No matter being Brassica campestris L. ssp.chinensis or water spinach, the germination of seed and Seedling Stage are approximately 20-25 days, have the characteristic of happiness temperature, happiness light, and optimal temperature is 25～30 DEG C, and sufficient sunlight can be conducive to the growth promoter of its germination and seedling. In overcast and rainy haze sky, when illumination deficiency, the as easy as rolling off a log generation excessive growth of seedling of Brassica campestris L. ssp.chinensis or water spinach, lodging, serious even formation Albino Seedling, cause that seedling development is bad thus affect the later stage transplant after yield and quality.
Being susceptible to excessive growth, lodging as a kind of general seedling, even form the problem such as Albino Seedling, and be not only in the plantation of water spinach, Brassica campestris L. ssp.chinensis to occur, equally easily there are the problems referred to above in planting process in other leaf vegetabless.
Similarly, overcast and rainy or typhoon sky often occur continuously in southern area spring, autumns such as China Guangdong, especially weather is more and more severe in recent years. Because of overcast and rainy continuously or typhoon sky, the leaf vegetables seedling of cultivation usually causes that Light Stress is coerced, the impact that leaf vegetables is grown by Low Light Density Stress is more and more prominent. Solving the Low Light Density Stress problem that leaf vegetables seedling exists, essential measure is to cultivate low light tolerance kind, but leaf vegetables kind research at present focuses primarily upon high temperature resistant moisture-proof. Therefore, being badly in need of a kind of cultural method improving leaf vegetables seedling weak light resistance, improvement and resistance breeding for leaf vegetables cultivation technique provide foundation.
Summary of the invention
The excessive growth that present invention aims to easily to occur when existing leaf vegetables seedling grows under low light level weather, lodging, Albino Seedling, and cause that seedling development is bad thus affect the later stage transplant after the problem such as yield and quality, it is provided that the cultural method of a kind of leaf vegetables seedling weak light resistance.
To achieve the above object of the invention, the embodiment of the present invention have employed following technical scheme:
The cultural method of a kind of leaf vegetables seedling weak light resistance, at least comprises the following steps:
Under artificial shading 70% and above condition of culture, being sprayed with machine carbon weight content to leaf vegetables plant blade face is the Liquid Fertilizer of 15%～25%.
The cultural method of the leaf vegetables seedling weak light resistance that the above embodiment of the present invention provides, the Liquid Fertilizer containing fertilizer about 20% is adopted to carry out foliage spray mode, leaf vegetables seedling chlorophyll a, b and Chlorophyll content are effectively improved, seedling vigorous index is improved accordingly simultaneously, improve leaf vegetables seedling low light tolerance performance, reduce the probability that excessive growth, lodging and Albino Seedling occur, efficiently solving the problem that under leaf vegetables seedling Light Stress, growing way is more weak, resistance breeding and high yield and quality cultivation for leaf vegetables provide reliable theoretical foundation.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment, the present invention is further elaborated. Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
The embodiment of the present invention provides the cultural method of a kind of leaf vegetables seedling weak light resistance, at least comprises the following steps:
Under artificial shading 70% and above condition of culture, being sprayed with machine carbon weight content to leaf vegetables plant blade face is the Liquid Fertilizer of 15%～25%.
Wherein, in any one embodiment, the cultivation of leaf vegetables seedling weak light resistance, be artificial sunshade 70% and above when carry out, and, adopt seedlings nursing plate substrate cultivate.
During to leaf vegetables plant blade face spraying liquid fertilizer, not only spray the front of plant leaf, also spray the back side of plant leaf simultaneously, the effect sprayed is as the criterion with blade face not flowing water pearl, spray too much, Liquid Fertilizer falls with the form of the globule, causes the waste of fertilizer, is unfavorable for reaching the purpose of solution problem with minimum Liquid Fertilizer.
In an any embodiment, above-mentioned organic carbon is at least one of aminoacid, sugar, protein or alcohol apoplexy due to endogenous wind, the little molecule of these organic carbons can effectively supplement the nutrients for leaf vegetables seedling, effectively alleviate the plant carbon hunger that photosynthesis deficiency causes, and then improve seedling photosynthetic capacity and anti-low light level performance.
As preferably, organic carbon weight content in Liquid Fertilizer is 20%, under the adding conditional of this organic carbon, it is possible to reach the problem that maximally effective solution leaf vegetables seedling Light Stress growing way is more weak.
In a preferred embodiment, the nutrient content of Liquid Fertilizer nitrogen-phosphorus-potassium is 80-40-80. Here 80-40-80 represents in every liter of Liquid Fertilizer containing 80 grams of N, 40 grams of P2O5, 80 grams of K2O. Owing to leaf vegetables seedling is less but need nutrient general equilibrium to nutrient demand amount, and the need fertilizer critical period that Seedling Stage is whole growth period, N:P2O5: K2O is chosen as 2:1:2 conveniently. Certainly, it is possible to change nutrient content in proportion according to crop demand and experience.
In a preferred embodiment, when leaf vegetables seedling is sprayed, Liquid Fertilizer should first be diluted with water to 350～800 times. When Liquid Fertilizer dilution is even lower lower than 350 times, the concentration of Liquid Fertilizer is higher, is sprayed on blade surface, it is easy to the Liquid Fertilizer concentration being attached to blade surface occurs more than blade inner cell liquid concentration, causes leaves water loss, even burn leaf; When Liquid Fertilizer dilution is higher than 800 times, Liquid Fertilizer concentration is too low, and it is unfavorable that leaf vegetables seedling is absorbed, it is impossible to effectively solves the problem that leaf vegetables seedling Light Stress growing way is more weak, namely can not play the effect improving weak light resistance.It is further preferred that Liquid Fertilizer should be diluted to 500 times.
As preferably, the sprinkling frequency that aforesaid liquid is fertile is sprayed once every 3～5 days, is sprayed the absorption that can promote seedling to fertilizer by a small amount of many minor ticks, and supplements nutrient in time, it is also possible to avoids the waste of fertilizer.
It is further preferred that when leaf vegetables blade being sprayed, spraying time is 16:00～18:00 every time. Carry out after 16:00 in the afternoon during this period of time, mainly due to the comparatively shady and cool evaporation that can reduce foliar applied fertilizer of now weather, it is ensured that the crop absorption maximum to fertilizer.
The cultural method of the leaf vegetables seedling weak light resistance that the above embodiment of the present invention provides, cultivation suitable in various leaf vegetables seedling, the Liquid Fertilizer containing fertilizer about 20% is mainly adopted to carry out foliage spray mode, make leaf vegetables seedling chlorophyll a, b and Chlorophyll content effectively improve, seedling vigorous index is improved accordingly simultaneously, improve leaf vegetables seedling low light tolerance performance, reduce and excessive growth occurs, the probability of lodging and Albino Seedling, efficiently solve the problem that under leaf vegetables seedling Light Stress, growing way is more weak, resistance breeding and high yield and quality cultivation for leaf vegetables provide reliable foundation.
In order to better illustrate the cultural method of the leaf vegetables seedling weak light resistance that the embodiment of the present invention provides, it is illustrated as embodiment below by Brassica campestris L. ssp.chinensis and water spinach.
Embodiment 1
Spray the impact that containing organic carbon Liquid Fertilizer, Light Stress is coerced lower Brassica campestris L. ssp.chinensis seedling
Colza prepares: four or nine Brassica parachinensis seeds;
The process of Liquid Fertilizer: add respectively in the Liquid Fertilizer that nitrogen-phosphorus-potassium nutrition content is 80-40-80 weight percentage be 0% (blank), 10%, 15%, 20%, 25%, 30% organic carbon, then with water, Liquid Fertilizer is diluted to 500 times;
Equipment: the seedlings nursing plate in 50 holes, sunshade net.
The present embodiment carries out in the glasshouse of Ba Tian ecological engineering limited company pine hilllock, Shenzhen. Being loaded on by seedling medium in the seedlings nursing plate in 50 holes, 3～5 four or nine Brassica parachinensis seeds are broadcast in every hole, substrate watered permeable with watering can water spray, carry out thinning, take the Brassica campestris L. ssp.chinensis seedling that growing way is consistent in time growing two panels cotyledon after covering lid layer fine sand. Being placed under sunshade net by Brassica campestris L. ssp.chinensis seedling consistent for growing way after thinning, the natural lighting intensity of artificial manufacture 25%, as photoenvironment, if four tests process, refers to table 1. Each seedlings nursing plate is as a process, shading to Brassica campestris L. ssp.chinensis seedling be two leaves wholeheartedly, within during shading every 3 days, process according to table 1, process within this time period of 16:00-18:00, shading carries out after terminating gathering and the mensuration of indices, and the result of index determining is as shown in table 2.
Table 1 test processes and numbering
| Process numbering | Fertilizer treatment |
| Blank | Organic carbon adding proportion 0%, 500 times of foliage-sprays |
| Process two | Organic carbon adding proportion 10%, 500 times of foliage-sprays |
| Process three | Organic carbon adding proportion 15%, 500 times of foliage-sprays |
| Process four | Organic carbon adding proportion 20%, 500 times of foliage-sprays |
| Process five | Organic carbon adding proportion 25%, 500 times of foliage-sprays |
| Process six | Organic carbon adding proportion 30%, 500 times of foliage-sprays |
Table 2 sprays the impact that Light Stress is coerced lower Brassica campestris L. ssp.chinensis growth of seedling index containing organic carbon Liquid Fertilizer
| Seedling vigorous index | Chlorophyll a (mg/g) | Chlorophyll b (mg/g) | Chlorophyll (mg/g) | |
| Blank | 0.00010b | 0.98b | 0.44c | 1.42c |
| Process two | 0.00011b | 1.13b | 0.51b | 1.64b |
| Process three | 0.00015a | 1.25a | 0.57a | 1.82a |
| Process four | 0.00017a | 1.32a | 0.61a | 1.93a |
| Process five | 0.00016a | 1.24a | 0.59a | 1.83a |
| Process six | 0.00013b | 1.11b | 0.56b | 1.67b |
Remarks: in table, a, b, c are added up by the SPSS Statistical software system 13.0 editions of INC company, draw after specifically repeating statistical analysis by the three of same treatment, process containing same letter does not have significant difference statistically, containing the process significant difference statistically of different letters.
As shown in Table 2, all spray containing organic carbon Liquid Fertilizer process Brassica campestris L. ssp.chinensis seedling content of chlorophyll b and Chlorophyll content dramatically increase; The indices spraying the Brassica campestris L. ssp.chinensis seedling containing 20% organic carbon Liquid Fertilizer process all dramatically increases. Comparing and process without organic carbon Liquid Fertilizer, seedling vigorous index, chlorophyll a, chlorophyll b and Chlorophyll content that organic carbon adding proportion 20% Liquid Fertilizer processes add 70%, 34.7%, 38.6% and 35.9% respectively. Dramatically increasing additionally, organic carbon adding proportion is the 15% and 25% Brassica campestris L. ssp.chinensis seedling indices processed, containing 20% organic carbon Liquid Fertilizer process best with effect does not have significant difference statistically yet.
Embodiment 2
Spray the impact that containing organic carbon Liquid Fertilizer, Light Stress is coerced lower water spinach seedling
Colza prepares: water spinach seed;
The process of Liquid Fertilizer: add respectively in the Liquid Fertilizer that nitrogen-phosphorus-potassium nutrition content is 80-40-80 weight percentage be 0% (blank), 10%, 15%, 20%, 25%, 30% organic carbon, then with water, Liquid Fertilizer is diluted to 500 times;
Equipment: the seedlings nursing plate in 50 holes, sunshade net.
The present embodiment carries out in the glasshouse of Ba Tian ecological engineering limited company pine hilllock, Shenzhen. Being loaded on by seedling medium in the seedlings nursing plate in 50 holes, 3～5 water spinach seeds are broadcast in every hole, substrate watered permeable with watering can water spray, carry out thinning, and choose the Brassica campestris L. ssp.chinensis seedling that growing way is consistent in time growing two panels cotyledon after covering lid layer fine sand. Being placed under sunshade net by Brassica campestris L. ssp.chinensis seedling consistent for growing way after thinning, the natural lighting intensity of artificial manufacture 25%, as photoenvironment, if four tests process, refers to table 3. Each seedlings nursing plate is as a process, shading to Brassica campestris L. ssp.chinensis seedling be two leaves wholeheartedly, within during shading every 3 days, process according to table 3, process within this time period of 16:00～18:00, shading carries out after terminating gathering and the mensuration of indices, and the result of index determining is as shown in table 4.
Table 3 embodiment 2 processes and numbers
| Process numbering | Fertilizer treatment |
| Blank | Organic carbon adding proportion 0%, 500 times of foliage-sprays |
| Process two | Organic carbon adding proportion 10%, 500 times of foliage-sprays |
| Process three | Organic carbon adding proportion 15%, 500 times of foliage-sprays |
| Process four | Organic carbon adding proportion 20%, 500 times of foliage-sprays |
| Process five | Organic carbon adding proportion 25%, 500 times of foliage-sprays |
| Process six | Organic carbon adding proportion 30%, 500 times of foliage-sprays |
Table 4 sprays the impact that Light Stress is coerced lower water spinach growth of seedling index containing organic carbon Liquid Fertilizer
| Seedling vigorous index | Chlorophyll a (mg/g) | Chlorophyll b (mg/g) | Chlorophyll (mg/g) | |
| Blank | 0.0009b | 0.78b | 0.48c | 1.26c |
| Process two | 0.0015b | 0.93b | 0.53b | 1.46b |
| Process three | 0.0020a | 1.17a | 0.62a | 1.79a |
| Process four | 0.0023a | 1.22a | 0.68a | 1.90a |
| Process five | 0.0021a | 1.15a | 0.60a | 1.75ab |
| Process six | 0.0018b | 1.08b | 0.61a | 1.69ab |
Remarks: in table, a, b, c draw after being repeated statistical analysis by the three of same treatment, the process containing same letter does not have significant difference statistically, containing the process significant difference statistically of different letters.
As shown in Table 4, spray and containing organic carbon Liquid Fertilizer, water spinach seedling content of chlorophyll b and Chlorophyll content are dramatically increased; The indices spraying the water spinach seedling containing 20% organic carbon Liquid Fertilizer process all dramatically increases. Comparing and process without organic carbon Liquid Fertilizer, seedling vigorous index, chlorophyll a, chlorophyll b and Chlorophyll content that organic carbon adding proportion 20% Liquid Fertilizer processes add 155.5%, 56.4%, 41.7% and 50.8% respectively.Dramatically increasing additionally, organic carbon adding proportion is the 15% and 25% Brassica campestris L. ssp.chinensis seedling indices processed, containing 20% organic carbon Liquid Fertilizer process best with effect does not have significant difference statistically yet.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent replacement or improvement etc. made within the spirit and principles in the present invention, should be included within protection scope of the present invention.
Claims (8)
1. a cultural method for leaf vegetables seedling weak light resistance, at least comprises the following steps:
Under artificial shading 70% and above condition of culture, being sprayed with machine carbon weight content to leaf vegetables plant blade face is the Liquid Fertilizer of 15%～25%.
2. cultural method as claimed in claim 1, it is characterised in that: during sprinkling, described Liquid Fertilizer is diluted with water to 350～800 times.
3. the cultural method as described in as arbitrary in claim 1-2, it is characterised in that: in described Liquid Fertilizer, the nutrient content of nitrogen-phosphorus-potassium is 80-40-80.
4. cultural method as claimed in claim 1, it is characterised in that: described organic carbon is at least one of aminoacid, sugar, protein or alcohol apoplexy due to endogenous wind.
5. the cultural method as described in as arbitrary in claim 1-2, it is characterised in that: sprayed once described Liquid Fertilizer every 3～5 days.
6. cultural method as claimed in claim 5, it is characterised in that: during described Liquid Fertilizer sprays, the time every time sprayed is 16:00～18:00.
7. cultural method as claimed in claim 1, it is characterised in that: described Liquid Fertilizer is all sprayed in the front on described leaf vegetables plant blade face, the back side, and is as the criterion with described blade face not flowing water pearl when spraying.
8. cultural method as claimed in claim 1, it is characterised in that: described condition of culture also includes seedlings nursing plate substrate culture.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11051464B2 (en) * | 2019-05-09 | 2021-07-06 | Luonnonvarakeskus | Reduction of nitrate content in plants |
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Application publication date: 20160615 |