Methods for prolonging the picking period of mid-late-maturing daylily varieties

Abstract

A method for extending the picking period of medium-late maturing daylilies is carried out by leaving short stubble for picking daylilies, spraying a regulator on the leaves, and applying topdressing to the roots. The beneficial effects of the invention are: by leaving short stubble for picking the flower buds, spraying a mixed aqueous solution of propionyl brassinolide, thidiazuron, and medium and trace element foliar fertilizers in specific proportions on the leaves of the plants, combined with topdressing, the flower organ division ability is maintained for a long time, the picking period of medium-late maturing daylilies is greatly extended, and the yield and benefits are improved.

Description

Technical Field

[0001] The invention relates to the technical field of day lily planting, in particular to a method for prolonging the picking period of mid-late-maturing varieties of day lily. Background Art

[0002] Daylily (scientific name: Hemerocallis citrina Baroni), also known as daylily, daylily, and forget-me-not, is a perennial herb belonging to the Liliales order, Liliaceae family.

[0003] Daylily flowers are edible organs and can be sold fresh or dried. Generally, the price of fresh sales is higher. When the fresh sales market is insufficient, it is dried. The picking period of a single variety of daylily is generally 2 to 3 months, and the flowering period of varieties with different maturity periods varies. Generally speaking, the longer the picking period, the higher the yield and the better the benefits.

[0004] In order to extend the flowering period, early-maturing varieties are cultivated in greenhouses to promote early harvest, which can advance the harvest period from early May to around late April; the harvest period for mid- and late-maturing varieties generally starts in early July and ends in early October. In some places, paclobutrazol is sprayed on the leaves of plants, combined with amino acid foliar fertilizers, which can extend the flowering period by more than 10 days to increase yield and benefits. However, the above methods all have great limitations, and the time for extending the harvest period of daylily is extremely limited. Summary of the invention

[0005] The present invention aims to solve the problems existing in the above-mentioned prior art and provides a method for prolonging the picking period of mid-late maturing varieties of day lily. By changing the picking method, spraying a regulator with a specific ratio on the leaves, and applying topdressing to the roots of the plants, the picking period of mid-late maturing varieties of day lily can be greatly extended, thereby improving the yield and production efficiency.

[0006] The present invention solves the technical problem by adopting a technical solution: the method for extending the picking period of mid-late-maturing day lily varieties comprises the following steps:

[0007] The first step is to pick the daylilies short, leaving 0.3cm to 0.5cm long peduncles on the flower moss to reduce damage to the flower moss during picking;

[0008] The second step is to spray the regulator on the leaves. 50 days after the daylily is harvested, the regulator is sprayed on the leaves in two stages. From late August to mid-October, 60g of regulator is diluted with 15kg of water per mu for foliar spraying, and spraying once a week. The regulator includes propionyl brassinolide, thidiazuron, and medium and trace element foliar fertilizer. The regulator ratio is: propionyl brassinolide: thidiazuron: medium and trace element foliar fertilizer = 1:0.5:10;

[0009] From late October to early December, 60g of regulator was diluted with 15kg of water per mu for foliar spraying once a week. The regulator included propionyl brassinolide, thidiazuron, and trace element foliar fertilizer. The ratio of regulator was: propionyl brassinolide: thidiazuron: medium and trace element foliar fertilizer = 1:1:10;

[0010] The third step is to apply root fertilizer. After spraying the regulator on the leaves, apply root fertilizer at a rate of 35kg to 45kg of ternary compound fertilizer with a content of more than 45% per mu every 20 to 30 days to supplement nutrients.

[0011] Furthermore, in the above method for extending the picking period of mid-late maturing varieties of daylily, in the second step, the effective ingredient content of propionyl brassinolide is 0.003%, the effective ingredient of thidiazuron is 0.5%, and the effective ingredient content of trace element foliar fertilizer is more than 10%.

[0012] The method for prolonging the picking period of medium and late-maturing day lilies of the present invention comprises the following steps: picking the day lilies with short stubbles, leaving 0.3 cm to 0.5 cm long peduncles on the flower moss when picking the day lilies, so as to reduce damage to the flower moss during picking, and changing the conventional picking of the day lilies at the abscission layer to picking with short stubbles, which can effectively avoid the conventional picking method that easily tears the flower moss epidermis and causes damage to the floral organ meristem at the flower moss, thereby affecting the subsequent differentiation and growth of the flower primordium.

[0013] The second step is to spray the regulator on the leaves. 50 days after the daylily is harvested, the regulator is sprayed on the leaves in two stages. From late August to mid-October, 60g of the regulator is diluted with 15kg of water per mu for foliar spraying, and the spraying is done once a week. The regulators include propionylbrassinolide, thidiazuron, and medium and trace element foliar fertilizers. The ratio of the regulators is: propionylbrassinolide: thidiazuron: medium and trace element foliar fertilizer = 1:0.5:10; from late October to early December, 60g of the regulator is diluted with 15kg of water per mu for foliar spraying, and the spraying is done once a week. The regulators include propionylbrassinolide, thidiazuron, and trace element foliar fertilizers. The ratio of the regulators is: propionylbrassinolide: thidiazuron: medium and trace element foliar fertilizer = 1:1:10.

[0014] Brassinolide is a new type of green and environmentally friendly plant growth regulator, which is recognized by the academic community as the sixth type of plant hormone. Its physiological effects show some characteristics of auxin, gibberellin, and cytokinin, such as promoting lateral bud germination, inducing bud differentiation, promoting lateral branch formation, increasing the number of branches, and increasing the number of flowers. Propionyl brassinolide is synthesized on the basis of brassinolide. It is a new compound formed by acylation of the 2,3 hydroxyl groups and oxidation of the 22,23 hydroxyl groups in the molecular structure of brassinolide. It has the characteristics of high activity, long lasting effect, more significant effect, and more stability. It can significantly promote the germination of flower branches and increase the number of flowers when used on daylily.

[0015] Thidiazuron is a new type of highly effective cytokinin. When used on daylily, it can promote the enlargement of flower buds and increase yield.

[0016] Water-soluble fertilizers containing medium and trace elements and root fertilization can timely replenish the nutrients consumed by the growth and development of plants and flowers.

[0017] More than 50 days after the medium and late maturing varieties of day lily were harvested, the plant's floral division ability began to decline. At this time, regular foliar spraying of a mixed aqueous solution of propionyl brassinolide, thidiazuron, and medium and trace element foliar fertilizers in specific proportions began. Under the action of this ratio, combined with rhizosphere fertilization, the germination of flower buds and the growth and development of flower buds of the day lily can be maintained uninterruptedly. The day lily picking period can be extended to early December. When the minimum temperature drops to around 0°C and frosty weather occurs, the picking will end. The flowering period is extended from 3 months to 5 months, and the end of picking is delayed from early October to early December, with the yield and benefits doubled.

[0018] In the second step, the spraying time and ratio of propionyl brassinolide, thidiazuron, and medium and trace element foliar fertilizer are very important. The regulator includes propionyl brassinolide, thidiazuron, and trace element foliar fertilizer, and the foliar spraying is carried out in two stages. The first stage spraying starts from 50 days after the daylily is harvested, that is, from late August to mid-October, 60g of regulator is diluted with 15kg of water per mu for foliar spraying, and the spraying is carried out once a week. The ratio of the regulator is: propionyl brassinolide: thidiazuron: medium and trace element foliar fertilizer = 1:0.5:10; the second stage spraying is in late October From October to early December, 60g of regulator per mu is diluted with 15kg of water for foliar spraying, and the spraying should be done once a week. The ratio of regulator is: propionyl brassinolide: thidiazuron: medium and trace element foliar fertilizer = 1:1:10. Through this step, the germination of flower buds and the growth and development of flower buds of day lily can be maintained uninterruptedly. The picking period of day lily can be extended to early December. When the minimum temperature drops to around 0℃ and frosty weather occurs, the picking period will be ended. The picking period is extended from 3 months to 5 months, and the end of picking is delayed from early October to early December, and the yield and benefits are doubled.

[0019] In the regulator sprayed in the second stage, the ratio of regulator is: propionyl brassinolide: thidiazuron: medium and trace element foliar fertilizer = 1:0.5:10. In the regulator sprayed in the second stage, the proportion of thidiazuron is increased, and the ratio is: propionyl brassinolide: thidiazuron: medium and trace element foliar fertilizer = 1:1:10. By spraying propionyl brassinolide, thidiazuron and medium and trace element foliar fertilizer at different stages and changing the ratio, the effect of maximizing the extension of the day lily picking period is achieved.

[0020] The invention changes the picking method of day lily, combines regular foliar spraying of regulators and root fertilization, maintains the germination and growth ability of the floral organs of the plant, greatly prolongs the picking period of mid-late-maturing varieties of day lily, and increases yield and benefits.

[0021] The method for prolonging the flowering period of the mid-late-maturing variety of day lily of the present invention prolongs the picking period of the day lily, and the day lily picked at the later stage reduces the market competition, increases the average price of the day lily, and further improves the economic benefits.

[0022] The beneficial effects of the present invention are as follows: the method for prolonging the picking period of medium and late-maturing daylily varieties of the present invention is to pick the flower buds while leaving the stubble, spray the leaves of the plants with a mixed aqueous solution of propionyl brassinolide, thidiazuron and medium and trace element foliar fertilizer in a specific ratio, and combine it with topdressing to maintain the flower organ division ability for a long time, greatly prolong the picking period, and improve the yield and benefit. DETAILED DESCRIPTION

[0023] The present invention will be further described below:

[0024] The method for extending the picking period of mid-late-maturing daylily varieties comprises the following steps:

[0025] The first step is to pick the daylilies short, leaving 0.3 cm long peduncles on the flower moss to reduce damage to the flower moss during picking;

[0026] The second step is to spray the regulator on the leaves. 50 days after the daylily is harvested, the regulator is sprayed on the leaves in two stages. From late August to mid-October, 60g of regulator is diluted with 15kg of water per mu for foliar spraying, and spraying once a week. The regulator includes propionyl brassinolide, thidiazuron, and medium and trace element foliar fertilizer. The regulator ratio is: propionyl brassinolide: thidiazuron: medium and trace element foliar fertilizer = 1:0.5:10;

[0027] From late October to early December, 60g of regulator was diluted with 15kg of water per mu for foliar spraying once a week. The regulator included propionyl brassinolide, thidiazuron, and trace element foliar fertilizer. The ratio of regulator was: propionyl brassinolide: thidiazuron: medium and trace element foliar fertilizer = 1:1:10;

[0028] The third step is to apply root fertilizer. After spraying the regulator on the leaves, apply root fertilizer at a rate of 35 kg of ternary compound fertilizer with a concentration of more than 45% per mu every 20 to 30 days to supplement nutrients.

[0029] Furthermore, in the above method for extending the flowering period of daylily, in the second step, the effective ingredient content of propionyl brassinolide is 0.003%, the effective ingredient of thidiazuron is 0.5%, and the effective ingredient content of trace element foliar fertilizer is more than 10%.

[0030] The method for extending the picking period of mid-late-maturing daylily varieties comprises the following steps:

[0031] The first step is to pick the daylilies short, leaving 0.4cm long peduncles on the flower moss to reduce damage to the flower moss during picking;

[0032] The second step is to spray the regulator on the leaves. 50 days after the daylily is harvested, the regulator is sprayed on the leaves in two stages. From late August to mid-October, 60g of regulator is diluted with 15kg of water per mu for foliar spraying, and spraying once a week. The regulator includes propionyl brassinolide, thidiazuron, and medium and trace element foliar fertilizer. The regulator ratio is: propionyl brassinolide: thidiazuron: medium and trace element foliar fertilizer = 1:0.5:10;

[0033] From late October to early December, 60g of regulator was diluted with 15kg of water per mu for foliar spraying once a week. The regulator included propionyl brassinolide, thidiazuron, and trace element foliar fertilizer. The ratio of regulator was: propionyl brassinolide: thidiazuron: medium and trace element foliar fertilizer = 1:1:10;

[0034] The third step is to apply root fertilizer. After spraying the regulator on the leaves, apply root fertilizer at a rate of 40 kg per mu with more than 45% triple compound fertilizer every 20 to 30 days to supplement nutrients.

[0035] Furthermore, in the above method for extending the picking period of mid-late maturing varieties of daylily, in the second step, the effective ingredient content of propionyl brassinolide is 0.003%, the effective ingredient of thidiazuron is 0.5%, and the effective ingredient content of trace element foliar fertilizer is more than 10%.

[0036] The method for extending the picking period of mid-late-maturing daylily varieties comprises the following steps:

[0037] The first step is to pick the daylilies short, leaving 0.5 cm long peduncles on the flower moss to reduce damage to the flower moss during picking;

[0038] The second step is to spray the regulator on the leaves. 50 days after the daylily is harvested, the regulator is sprayed on the leaves in two stages. From late August to mid-October, 60g of regulator is diluted with 15kg of water per mu for foliar spraying, and spraying once a week. The regulator includes propionyl brassinolide, thidiazuron, and medium and trace element foliar fertilizer. The regulator ratio is: propionyl brassinolide: thidiazuron: medium and trace element foliar fertilizer = 1:0.5:10;

[0039] From late October to early December, 60g of regulator was diluted with 15kg of water per mu for foliar spraying once a week. The regulator included propionyl brassinolide, thidiazuron, and trace element foliar fertilizer. The ratio of regulator was: propionyl brassinolide: thidiazuron: medium and trace element foliar fertilizer = 1:1:10;

[0040] The third step is to apply root fertilizer. After spraying the regulator on the leaves, apply root fertilizer at a rate of 45 kg per mu with more than 45% triple compound fertilizer every 20 to 30 days to supplement nutrients.

[0041] Furthermore, in the above method for extending the picking period of mid-late maturing varieties of daylily, in the second step, the effective ingredient content of propionyl brassinolide is 0.003%, the effective ingredient of thidiazuron is 0.5%, and the effective ingredient content of trace element foliar fertilizer is more than 10%.

[0042] The method for extending the picking period of the mid-late maturing daylily varieties according to the first, second and third embodiments of the present invention was selected, and the daylily produced was compared with the daylily produced by the conventional management of the daylily field. The comparison results are as follows:

[0043]

[0044] It can be seen from the above table that the method for extending the picking period of mid-late maturing varieties of day lily according to the embodiment of the present invention is superior to conventional management of day lily fields in terms of yield, average price and per-acre output value, and can be promoted.

[0045] The characteristics of the embodiments of the present invention are as follows: the method for extending the picking period of medium and late-maturing varieties of day lily of the present invention is to pick the flower buds while leaving the stubble, spray the leaves of the plants with a mixed aqueous solution of propionyl brassinolide, thidiazuron, and medium and trace element foliar fertilizer in a specific ratio, and combine it with topdressing to maintain the flower organ division ability for a long time, greatly extend the picking period, and improve the yield and benefit.

[0046] Although the present invention has been described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A method for extending the picking period of mid-late maturing day lily varieties, characterized in that: The steps include: (1) Leave a short stubble when picking daylilies. Leave 0.3 cm to 0.5 cm long pedicels on the flower moss to reduce damage to the flower moss during picking. (2) Foliar spraying of regulators: 50 days after the harvest of daylily, foliar spraying of regulators was carried out in two stages. From late August to mid-October, 60 g of regulators were diluted with 15 kg of water per mu for foliar spraying, and spraying was carried out once a week. The regulators included propionyl brassinolide, thidiazuron, and medium and trace element foliar fertilizers. The ratio of regulators was: propionyl brassinolide: thidiazuron: medium and trace element foliar fertilizer = 1:0.5:10; From late October to early December, 60g of regulator was diluted with 15kg of water per mu for foliar spraying once a week. The regulator included propionyl brassinolide, thidiazuron, and trace element foliar fertilizer. The ratio of regulator was: propionyl brassinolide: thidiazuron: medium and trace element foliar fertilizer = 1:1:10; (3) Root topdressing: After spraying the regulator on the leaves, apply 35kg to 45kg of triple compound fertilizer with a concentration of more than 45% per mu for root topdressing every 20 to 30 days to supplement nutrients.

2. The method for prolonging the picking period of mid-late-maturing daylily varieties according to claim 1, characterized in that: In the step (2), the effective ingredient content of propionyl brassinolide is 0.003%, the effective ingredient content of thidiazuron is 0.5%, and the effective ingredient content of trace element foliar fertilizer is more than 10%.

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