CN109511511B - Cultivation method for promoting secondary growth and flowering of loosestrife herb in one year - Google Patents
Cultivation method for promoting secondary growth and flowering of loosestrife herb in one year Download PDFInfo
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Abstract
The invention discloses a cultivation method for promoting secondary growth and flowering of loosestrife herb in one year, which comprises the following steps: 1) and strengthening seedlings in the early stage. The method comprises the aspects of nutrient management, pest control, water level management and the like, and aims to promote overground plant stems to thicken and promote the growth of underground root systems. 2) And trimming. Including the selection of trimming time and stubble height. 3) And later-period cultivation management. Comprises nutrient management, pest control, water level management, growth promotion, flower promotion and other measures. The method is easy to implement, simple and convenient to operate, low in cost and quick in effect, can easily achieve the purpose of secondary growth and flowering of the loosestrife herb every year, prolongs the ornamental period of the loosestrife herb, increases the biomass of overground plants, achieves the ornamental value, the medicinal value, the ecological function, the economic benefit and the ecological function, and has good popularization.
Description
Technical Field
The invention relates to the technical field of ornamental plant cultivation, in particular to a cultivation method for promoting secondary growth and flowering of loosestrife herb in one year.
Background
Lythraustochytrid (Lythram salicia L.) of the genus Lythraustochytrid of the family Lythraceae is a perennial herb, typically wild distributed in Asia, Europe, Africa, Alternaria, North America and the southeast Australia on the banks, lakesides, stream ditches and moist meadow areas. The roots of the loosestrife are thick and strong, and the loosestrife lies underground; the stem is upright and multi-branched, and the whole plant is 30-100 cm high. The leaf length is 4-6 cm, width is 8-15 mm, and it is formed into needle or broad-needle, and can be grown into one-half or three-leaf clover. The flower is reddish purple or light purple, grows in clusters, and is small in cluster umbrella inflorescence, and due to the extremely short pedicel and total peduncle, the flowering branch is full-shaped like a large spike inflorescence, and the flowering period is 6-8 months. The seed maturation period is 9-10 months.
The whole herb of loosestrife is bitter and cold in nature and has the functions of clearing heat, cooling blood and the like. The whole herb is used as a medicine for treating enteritis, dysentery and hematochezia; it is used externally to treat traumatic hemorrhage. Animal experiments show that the plant extract, decoction or root decoction has antibacterial, blood pressure lowering, antiinflammatory, spasmolytic and hemostatic effects.
In addition, the loosestrife sprouts in 3-4 months, and the full-bloom stage in 6-7 months, so that the loosestrife has good ornamental effect due to good plant shape, bright color and long flowering phase; the propagation is simple and easy, and the seeding propagation, the plant division propagation and the twig cuttage can be performed; the adaptability is good, and the planting survival rate is high; after the seedlings are grown, the seedlings can be managed roughly and planted at one time. So that the plant is developed into excellent landscaping species and is widely applied to garden engineering. Furthermore, Lythrum salicaria is also commonly applied to artificial wetland ecosystem for sewage treatment.
The growing period of the loosestrife in the middle and lower reaches of Yangtze river is 3-11 months, but the growing period is from the bottom of 5 months to the beginning of 6 months in the initial flowering period, from 6 middle ten days to 7 middle and lower ten days in the full flowering period, after 8 months, the leaves begin to yellow and partially wither, the epidermis of flowering branches turns yellow and brown, the flowering quantity is reduced sharply, the outer surface of stems and leaves turn yellow, the seeds gradually mature, the epidermis turns brown, and the ornamental effect is seriously influenced. The temperature in the middle and late 4 months of the middle and lower reaches of the Yangtze river is closer to that in the upper 10 months, and the temperature is theoretically more suitable for secondary growth and flowering. Therefore, the ornamental period is prolonged, and the biomass of the plants is increased. The celandine in the artificial wetland ecosystem timely harvests the overground plant bodies to promote secondary growth and flowering, so that the treatment effect can be improved, and more substances such as N, P and the like can be taken away. Through Chinese patent database search system query, no patent application or relevant literature publication for promoting the secondary growth and flowering of loosestrife herb in one year is found at present.
Disclosure of Invention
The invention aims to solve the technical problems of secondary growth and flowering of loosestrife herb every year, and aims to provide a cultivation method for promoting the secondary growth and flowering of loosestrife herb every year.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
a cultivation method for promoting the secondary growth and flowering of loosestrife herb in one year comprises the following steps:
step 1, strengthening seedlings in early stage. The strong seedling treatment in the first growth stage aims to promote the overground plant stems to be thickened and promote the growth of underground root systems.
1.1 nutrient management. In the middle and last ten days of 4 months, applying the decomposed bean cake water for 1 time; in the middle and last ten days of 5 months, compound fertilizer is applied for 1 time. About 10kg of bean cake fertilizer is soaked and decomposed in about 30kg of tap water in a greenhouse at the temperature of about 25-35 ℃ for 30-45 days in a closed manner, and the bean cake fertilizer is stirred for 1 time every 1 day. The water consumption of the decomposed bean cake is 1800 plus 2400kgAnd/ha. The compound fertilizer adopts compound fertilizer N + P2O5+K2O is more than or equal to 51 percent (17-17-17) type, and the dosage is 225-300 kg/ha.
1.2 preventing and treating plant diseases and insect pests. Spraying 10% imidacloprid 4000-. Spraying 400-fold liquid of 75 percent chlorothalonil or 400-fold liquid of 50 percent carbendazim for 1-2 times to prevent and treat the spot disease;
1.3 water level management. Before blooming, the water level is kept below 20cm, and the water is alternately dried and wetted, namely the water naturally falls to be dry after 20cm is irrigated, and the water is irrigated again after the field is placed for 2 to 4 days. The water level is kept 5-20cm during flowering. Care should be taken to ensure that the water level is between 10-20cm during fertilization and pesticide application.
And 2, trimming.
2.1 pruning time. After the full-bloom period, when the flower amount is reduced and the plant leaves are yellow and fall off, generally from the middle and late ten days of 7 months to the beginning of 8 months, and at latest, the flower amount is not more than 8 months and 10 days, trimming is finished in the morning of cloudy days, high temperature (the temperature is higher than 35 ℃) and rainy days are avoided as much as possible, the moisture evaporation of wounds is reduced, and the wound healing is promoted.
2.2 the height of the stubble. The stubble at this stage is ensured to be 10-25cm, and diseased branches and weak branches are cleaned simultaneously.
And 3, later-stage cultivation.
3.1 nutrient management. Applying the decomposed bean cake water for 1 time 10-15 days after pruning in cloudy days or in the evening of sunny days; and applying the compound fertilizer for 1 time again after 20-25 days. About 10kg of bean cake fertilizer is soaked and decomposed in about 30kg of tap water in a greenhouse at the temperature of about 25-35 ℃ for 30-45 days in a closed manner, and the bean cake fertilizer is stirred for 1 time every 1 day. The water consumption of the decomposed bean cakes is 1200-1800 kg/ha. The compound fertilizer adopts compound fertilizer N + P2O5+K2O is more than or equal to 51 percent (17-17-17) type, and the dosage is 150-.
3.2 pest control. 10 percent of imidacloprid 4000-6000-fold liquid is sprayed for 1 time to prevent aphids, 40 percent of chlorpyrifos 800-fold liquid is sprayed for 1 time to prevent prodenia litura, and 20 percent of pyridaben wettable powder 3000-fold liquid is sprayed for 1 time to prevent red spiders. Spraying 400-fold liquid of 75 percent chlorothalonil or 400-fold liquid of 50 percent carbendazim for 1-2 times to prevent and treat the spot disease.
3.3 water level management. The water level is required to be ensured to be lower than the stubble height of the plants between the time of pruning and the time of first fertilization. And then keeping the water level below 25cm, alternately performing dry irrigation and wet irrigation, namely irrigating water for 25cm, naturally drying, and then irrigating water again. Care should be taken to ensure that the water level is between 10-25cm during fertilization and pesticide application.
3.4 growth promotion and flower promotion. After 15-20 days after pruning, 1.8 percent of solution of 4500-5500 times liquid of compound sodium nitrophenolate is sprayed for 1 time to promote the growth of plants and the differentiation of flower buds.
Through the technical measures, the loosestrife enters the secondary growth period, the leaf viewing period can be carried out for the second time after the trimming is carried out for about 15 to 25 days, the flowering period is carried out for the second time after the trimming is carried out for about 25 to 35 days, and the full flowering period is carried out for the second time after the trimming is carried out for about 45 to 55 days. And untreated loosestrife.
The innovation point of the invention is that the characteristic of super strong reproductive capacity of the loosestrife is utilized, the technical idea of adopting pruning measures to promote the secondary growth and flowering of the loosestrife every year is innovatively proposed, and the problems that the leaf of the loosestrife begins to turn yellow and partially withers after 8 months, the epidermis of flowering branches turns yellow and brown, the flowering quantity is reduced sharply, the outer epidermis of stems and leaves turns yellow, the seeds gradually mature, and the epidermis turns brown, and the ornamental effect is seriously influenced are solved. The technical difficulty of the invention lies in measures such as early-stage seedling strengthening, pruning, later-stage cultivation, maintenance and management and the like, which can prolong the ornamental period of the loosestrife, increase the biomass of overground plants and realize ornamental value, medicinal value, ecological function, economic benefit and ecological function.
The method is simple and easy to implement, convenient to operate, low in cost, quick in effect, capable of easily achieving the purpose of secondary growth and flowering of the loosestrife every year, and good in popularization.
Compared with the prior art, the invention has the following advantages and effects:
1) the green leaf period and the flowering period of the loosestrife are obviously increased, the ornamental period of the loosestrife is prolonged, and particularly the phenomenon that aquatic flowers have no flowers or few flowers in the period of 9-10 months is compensated;
2) the biomass of the plant is obviously increased, the dosage and the water body purification efficiency can be effectively improved, and the medicinal value and the ecological effect are enhanced.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Detailed Description
The present invention will be described in detail with reference to examples, which are only preferred embodiments of the present invention and are not intended to limit the present invention. The method is implemented in a Lythra serpentinatum planting pool in a Wuhan plant garden special for aquatic plant garden of Chinese academy of sciences, and the area of the Lythra serrulata planting pool is about 350m2. Plants from adjacent planting ponds were untreated and served as controls.
Example 1:
a cultivation method for promoting the secondary growth and flowering of loosestrife herb in one year comprises the following steps:
step 1, strengthening seedlings in early stage.
1.1 nutrient management. In the middle and last ten days of 4 months, applying the decomposed bean cake water for 1 time; in the middle and last ten days of 5 months, compound fertilizer is applied for 1 time. About 10kg of bean cake fertilizer is soaked and decomposed in about 30kg of tap water in a greenhouse at the temperature of 25, 27, 29, 31, 33 or 35 ℃ for 30 days in a closed manner, and the bean cake fertilizer is stirred for 1 time every 1 day. The water consumption of the decomposed bean cakes is 1800 kg/ha. The compound fertilizer adopts compound fertilizer N + P2O5+K2O is more than or equal to 51 percent (17-17-17) type, and the dosage is 300 kg/ha.
1.2 preventing and treating plant diseases and insect pests. Spraying 10% imidacloprid 5000-fold liquid for 1 time to prevent aphids, spraying 40% chlorpyrifos 1000-fold liquid for 2 times to prevent prodenia litura, and spraying 20% pyridaben wettable powder 3000-fold liquid for 1 time to prevent red spiders. And spraying 500 times of 75% chlorothalonil liquid or 300 times of 50% carbendazim liquid for 2 times to prevent and treat the spot disease.
1.3 water level management. Before flowering, the water level is kept below 20cm, and the water is alternately dried and wetted, namely the water naturally falls to be dry 20cm after irrigation, and the water is irrigated again after the field is placed for 2 or 3 or 4 days. During flowering, the water level is kept at 5 or 8 or 10 or 14 or 17 or 20 cm. Care should be taken to ensure that the water level is between 10-20cm during fertilization and pesticide application.
And 2, trimming.
2.1 pruning time. Trimming was completed 7 months and 16 am.
2.2 the height of the stubble. The stubble is kept about 15cm at the stage, and diseased branches and weak branches are cleaned simultaneously.
And 3, later-stage cultivation.
3.1 nutrient management. Applying the decomposed bean cake water for 1 time in the evening of 13 days after pruning; after 20 days compound fertilizer is applied again for 1 time. About 10kg of bean cake fertilizer is soaked and decomposed in about 30kg of tap water in a greenhouse at the temperature of about 25, 26, 28, 30, 32, 34 or 35 ℃ in a closed manner for 30 days, and the bean cake fertilizer is stirred for 1 time every 1 day. The water consumption of the decomposed bean cakes is 1200 kg/ha. The compound fertilizer adopts compound fertilizer N + P2O5+K2O is more than or equal to 51 percent (17-17-17) type, and the dosage is 150 kg/ha.
3.2 pest control. Spraying 10% imidacloprid 5000-fold liquid for 1 time to prevent aphids, spraying 40% chlorpyrifos 1000-fold liquid for 1 time to prevent prodenia litura, and spraying 20% pyridaben 4000-fold liquid for 1 time to prevent red spiders. And spraying 500 times of 75% chlorothalonil solution and 300 times of 50% carbendazim solution for 1 time respectively to prevent and treat the spot disease.
3.3 water level management. After pruning, the water level must be ensured to be lower than 15cm before the first fertilization. And then keeping the water level below 25cm, alternately performing dry irrigation and wet irrigation, namely irrigating water for 25cm, naturally drying, and then irrigating water again. Care should be taken to ensure that the water level is between 10-25cm during fertilization and pesticide application.
3.4 growth promotion and flower promotion. After 20 days of pruning, spraying a solution of 5000 times of 1.8 percent compound sodium nitrophenolate solution for 1 time.
Through the technical measures, the pruned loosestrife enters a second leaf-watching period within 3 days of 8 months, flowers for the second time within 18 days of 8 months, and enters a second full-bloom period within 1 day of 9 months. The sum of the green leaf period, the flowering period, the full-bloom period and the single plant biomass before and after pruning is counted as 185 days, 110 days, 62 days and 681.2 g respectively. The green leaf period, the flowering period, the full-bloom period and the single plant biomass of the loosestrife in other untreated traditional cultivation method areas in the garden are respectively 117 days, 73 days, 34 days and 433.6 g. The green leaf period, the flowering period, the full-bloom period and the single plant biomass of the pruned loosestrife are respectively increased by 58%, 50%, 82% and 57% compared with the traditional method. Thus, the effect is remarkable.
Example 2:
a cultivation method for promoting the secondary growth and flowering of loosestrife herb in one year comprises the following steps:
step 1, strengthening seedlings in early stage.
1.1 nutrient management. In the middle and last ten days of 4 months, applying the decomposed bean cake water for 1 time; in the middle and last ten days of 5 months, compound fertilizer is applied for 1 time. About 10kg of bean cake fertilizer is soaked and decomposed for 35 days in a closed way by about 30kg of tap water in a greenhouse with the temperature of about 25 or 28 or 32 or 35 ℃, and the bean cake fertilizer is stirred for 1 time every 1 day. The dosage of the water of the decomposed bean cakes is 2400 kg/ha. The compound fertilizer adopts compound fertilizer N + P2O5+K2O is more than or equal to 51 percent (17-17-17) type, and the dosage is 225 kg/ha.
1.2 preventing and treating plant diseases and insect pests. Spraying 10% imidacloprid 4000-fold liquid for 1 time to prevent aphids, spraying 40% chlorpyrifos 1000-fold liquid for 2 times to prevent prodenia litura, and spraying 20% pyridaben wettable powder 4500-fold liquid for 2 times to prevent red spiders. Spraying 400 times of 75% chlorothalonil liquid or 200 times of 50% carbendazim liquid for 1 time to prevent and treat the spot disease.
1.3 water level management. Before blooming, the water level is kept below 20cm, and the water is alternately dried and wetted, namely the water naturally falls to be dry after 20cm is irrigated, and the water is irrigated again after the field is placed for 2 to 4 days. During flowering, the water level is kept at 5 or 9 or 15 or 18 or 20 cm. Care should be taken to ensure that the water level is between 10-20cm during fertilization and pesticide application.
And 2, trimming.
2.1 pruning time. Trimming was completed 7 months and 27 am.
2.2 the height of the stubble. The stubble at this stage is ensured to be 25cm, and diseased branches and weak branches are cleaned simultaneously.
And 3, later-stage cultivation.
3.1 nutrient management. Applying the thoroughly decomposed bean cake water for 1 time in the evening after 10 days of pruning; compound fertilizer is applied again 1 time 20 or 23 or 25 days later. About 10kg of bean cake fertilizer is soaked and decomposed in about 30kg of tap water in a greenhouse at the temperature of about 25 or 27 or 29 or 33 or 35 ℃ for 30 days in a closed manner, and the bean cake fertilizer is stirred for 1 time every 1 day. The water consumption of the decomposed bean cakes is 1800 kg/ha. The compound fertilizer adopts compound fertilizer N + P2O5+K2O is more than or equal to 51 percent (17-17-17) type, and the dosage is 150 kg/ha.
3.2 pest control. Spraying 10% imidacloprid 4000-fold liquid for 1 time to prevent aphids, spraying 40% chlorpyrifos 800-fold liquid for 1 time to prevent prodenia litura, and spraying 20% pyridaben wettable powder 3000-fold liquid for 1 time to prevent red spiders. Spraying 400 times of 75% chlorothalonil liquid for 2 times to prevent and treat the spot disease.
3.3 water level management. After pruning, the water level must be kept below 25cm before the first fertilization. And then keeping the water level below 25cm, alternately performing dry irrigation and wet irrigation, namely irrigating water for 25cm, naturally drying, and then irrigating water again. Care should be taken to ensure that the water level is between 10-25cm during fertilization and pesticide application.
3.4 growth promotion and flower promotion. After 15 days of pruning, 1.8 percent solution of 4500 times of the solution of the compound sodium nitrophenolate is sprayed for 1 time.
Through the technical measures, the pruned loosestrife enters a second leaf-watching period within 8 months and 15 days, flowers for the second time within 8 months and 30 days, and enters a second full-bloom period within 9 months and 14 days. The sum of the green leaf period, the flowering period, the full-bloom period and the single plant biomass before and after pruning is counted to be 190 days, 114 days, 60 days and 664.0 grams respectively. The green leaf period, the flowering period, the full-bloom period and the single plant biomass of the loosestrife in other untreated traditional cultivation method areas in the garden are respectively 117 days, 73 days, 34 days and 433.6 g. The green leaf period, the flowering period, the full-bloom period and the single plant biomass of the pruned loosestrife are respectively increased by 62 percent, 56 percent, 76 percent and 53 percent compared with the traditional method. Thus, the effect is remarkable.
Example 3:
a cultivation method for promoting the secondary growth and flowering of loosestrife herb in one year comprises the following steps:
step 1, strengthening seedlings in early stage.
1.1 nutrient management. In the middle and last ten days of 4 months, applying the decomposed bean cake water for 1 time; in the middle and last ten days of 5 months, compound fertilizer is applied for 1 time. About 10kg of bean cake fertilizer is soaked and decomposed for 45 days in a closed way by about 30kg of tap water in a greenhouse with the temperature of about 25 or 27 or 31 or 35 ℃, and the bean cake fertilizer is stirred for 1 time every 1 day. The water consumption of the decomposed bean cakes is 2100 kg/ha. The compound fertilizer adopts compound fertilizer N + P2O5+K2O is more than or equal to 51 percent (17-17-17) type, and the dosage is 255 kg/ha.
1.2 preventing and treating plant diseases and insect pests. Spraying 10% imidacloprid 6000-fold liquid for 2 times to prevent aphids, spraying 40% chlorpyrifos 800-fold liquid for 1 time to prevent prodenia litura, and spraying 20% pyridaben wettable powder 4500-fold liquid for 1 time to prevent red spiders. Spraying 50% carbendazim 200 times liquid for 2 times to prevent and treat the spot disease.
1.3 water level management. Before blooming, the water level is kept below 20cm, and the water is alternately dried and wetted, namely the water naturally falls to be dry after 20cm is irrigated, and the water is irrigated again after the field is placed for 2 to 4 days. The water level is kept 5-20cm during flowering. Care should be taken to ensure that the water level is between 10-20cm during fertilization and pesticide application.
And 2, trimming.
2.1 pruning time. Pruning is completed 8 months and 1 day.
2.2 the height of the stubble. The stubble at this stage is ensured to be 10cm, and diseased branches and weak branches are cleaned at the same time.
And 3, later-stage cultivation.
3.1 nutrient management. Applying thoroughly decomposed bean cake water for 1 time 10 days after pruning; after 20 days compound fertilizer is applied again for 1 time. About 10kg of bean cake fertilizer is soaked and decomposed for 30 days in a closed way by about 30kg of tap water in a greenhouse with the temperature of about 25 or 30 or 35 ℃, and the bean cake fertilizer is stirred for 1 time every 1 day. The water consumption of the decomposed bean cakes is 1500 kg/ha. The compound fertilizer adopts compound fertilizer N + P2O5+K2O is more than or equal to 51 percent (17-17-17) type, and the dosage is 180 kg/ha.
3.2 pest control. Spraying 10% imidacloprid 6000-fold liquid for 1 time to prevent aphids, spraying 40% chlorpyrifos 1000-fold liquid for 1 time to prevent prodenia litura, and spraying 20% pyridaben wettable powder 4500-fold liquid for 1 time to prevent red spiders. Spraying 50% carbendazim 200-400 times liquid for 1 time to prevent and treat the spot disease.
3.3 water level management. The water level must be kept below 10cm after pruning and before the first fertilization. And then keeping the water level below 25cm, alternately performing dry irrigation and wet irrigation, namely irrigating water for 25cm, naturally drying, and then irrigating water again. Care should be taken to ensure that the water level is between 10-25cm during fertilization and pesticide application.
3.4 growth promotion and flower promotion. After 15 days after pruning, a solution of 1.8 percent compound sodium nitrophenolate 5500 times liquid is sprayed for 1 time.
Through the technical measures, the pruned loosestrife enters a second leaf-watching period within 16 days of 8 months, flowers for the second time within 5 days of 9 months, and enters a second full-bloom period within 24 days of 9 months. The sum of the green leaf period, the flowering period, the full-bloom period and the single plant biomass before and after pruning is counted to be 200 days, 113 days, 58 days and 541.2 g respectively. The green leaf period, the flowering period, the full-bloom period and the single plant biomass of the loosestrife in other untreated traditional cultivation method areas in the garden are respectively 117 days, 73 days, 34 days and 433.6 g. The green leaf period, the flowering period, the full-bloom period and the single plant biomass of the pruned loosestrife are respectively increased by 70 percent, 54 percent, 70 percent and 24 percent compared with the traditional method. Thus, the effect is remarkable.
The green leaf period, flowering time and plant biomass of the loosestrife herb cultivated by the method in examples 1-3 were counted, and the results are shown in table 1.
TABLE 1 statistics of green leaf period, flowering time and plant biomass of Lythrum salicaria according to the cultivation method of the present invention
Remarking: the statistics of the embodiments 1, 2 and 3 of the invention are the sum of the time of the two growth periods of the loosestrife and the sum of the biomass of the plant; the traditional cultivation method is one-time growth period and plant biomass.
In summary, the green leaf period, the flowering period and the full flowering period of the loosestrife herb cultivated by the cultivation method of the embodiment 1-3 are at least improved by 58%, 50% and 70% compared with the traditional method, and the ornamental effect is obviously improved. Meanwhile, the individual plant biomass of the loosestrife by the cultivation method is at least improved by 24 percent compared with the traditional method, and the effect is obvious.
While embodiments of the invention have been disclosed, it is not intended to be limited to the details of construction and to the arrangements of the embodiments set forth herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (1)
1. A cultivation method for promoting the secondary growth and flowering of loosestrife herb in one year comprises the following steps:
A. strengthening seedlings in early stage: strengthening seedlings in the first growth stage, thickening overground plant stems and growing underground root systems;
1) nutrient management: in the middle and last ten days of 4 months, applying the decomposed bean cake water for 1 time; in the middle and last ten days of 5 months, applying compound fertilizer for 1 time, soaking 10kg of bean cake fertilizer in 30kg of tap water in a greenhouse at the temperature of 25-35 ℃ for 30-45 days in a closed manner, stirring 1 time every 1 day in the period, wherein the water consumption of the decomposed bean cake is 1800-2400kg/ha, and the compound fertilizer adopts compound fertilizer N + P2O5+K2O is more than or equal to 51 percent, and the using amount is 225-300 kg/ha;
2) and (3) pest control: spraying 10% imidacloprid 4000-;
3) water level management: before flowering, the water level is below 20cm, dry and wet are alternately carried out, after irrigation, 20cm naturally falls dry, after field laying for 2-4 days, irrigation is carried out again, the water level is 5-20cm during flowering, and the water level is between 10-20cm during fertilization and pesticide application;
B. trimming:
1) trimming time: after the full-bloom period, when the flower amount is reduced and the plant leaves are yellow and fall off, in the middle and late ten days of 7 months to the beginning of 8 months, no more than 8 months and 10 days, trimming is finished in the morning of cloudy days, high-temperature and rainy days are avoided, moisture evaporation of wounds is reduced, and wound healing is promoted;
2) the stubble height: in the stage, stubble is kept at 10-25cm, and diseased branches and weak branches are cleaned;
C. and (3) later-stage cultivation:
1) nutrient management: applying the decomposed bean cake water for 1 time 10-15 days after pruning in cloudy days or in the evening of sunny days; applying the compound fertilizer for 1 time after 20-25 days, soaking 10kg of bean cake fertilizer in 30kg of tap water at 25-35 deg.C for 30-45 days while stirring for 1 time every 1 day, wherein the water consumption of decomposed bean cake is 1200kg/ha and 1800kg/ha, and the compound fertilizer is N + P compound fertilizer2O5+K2O is more than or equal to 51 percent, and the dosage is 150-225 kg/ha;
2) and (3) pest control: spraying 10% imidacloprid 4000-6000-fold liquid for 1 time to prevent aphids, spraying 40% chlorpyrifos 800-fold liquid for 1 time to prevent prodenia litura, spraying 20% pyridaben wettable powder 3000-fold liquid for 1 time to prevent red spiders, spraying 75% chlorothalonil 400-fold liquid for 600-fold or 50% carbendazim 200-fold liquid for 1-2 times to prevent spot diseases;
3) water level management: after pruning, the water level is lower than the stubble height of the plant between the first fertilization, then the water level is below 25cm, dry and wet are alternately carried out, namely irrigation water is naturally dried after being irrigated for 25cm, then irrigation water is irrigated again, and the water level is between 10 and 25cm during fertilization and pesticide application:
4) growth promotion and flower promotion: after 15-20 days after pruning, 1.8 percent of solution of 4500-5500 times liquid of compound sodium nitrophenolate is sprayed for 1 time to promote the growth of plants and the differentiation of flower buds.
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| CN105766297A (en) * | 2016-03-11 | 2016-07-20 | 天津泰达绿化集团有限公司 | Dry land planting method of willow herb |
| CN106888778A (en) * | 2017-01-16 | 2017-06-27 | 大唐创新港投资（北京）有限公司 | The method for promoting China pink plant second bloom |
| CN107278777B (en) * | 2017-07-25 | 2020-01-03 | 广西壮族自治区中国科学院广西植物研究所 | Cultivation method for promoting secondary blossoming of sophora japonica |
| CN108040800A (en) * | 2017-10-19 | 2018-05-18 | 寿县正阳油用牡丹种植专业合作社 | A kind of medicine peony forescence regulates and controls high yield cultivating method |
| CN108029499A (en) * | 2017-12-21 | 2018-05-15 | 四川格睿园林科技有限公司 | The cultivation that red sage is several times a year bloomed and chemical regulation method |
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Effective date of registration: 20220601 Address after: 430074 horticultural center building, Wuhan Botanical Garden, Chinese Academy of Sciences, No. 1 LUMO Road, East Lake ecotourism scenic spot, Wuhan City, Hubei Province Patentee after: Wuhan Botanical Garden Gardening Center Co.,Ltd. Address before: 430074 Wuhan Botanical Garden, Chinese Academy of Sciences, Moshan, Hongshan District, Wuhan City, Hubei Province Patentee before: WUHAN BOTANICAL GARDEN, CHINESE ACADEMY OF SCIENCES |