A cultivation method of flax in north area with two crops in one season

Abstract

The application discloses a kind of northern flax one season two crops cultivation methods, process includes: in autumn, and in late April of next year sowing is carried out;Before mature period, routine field management, mature period, and timely spray irrigation is carried out, and the height of seedling is 8-10cm when weed is removed;After the first season harvest, spray irrigation treatment, soil humidity is kept at 60% to 70% of field water holding capacity, and potassium dihydrogen phosphate is sprayed on leaf surface during full flowering period to green maturity period.The cultivation method of the application can realize the maturation of the second seed after the first harvest, and the yield of the second harvest seed can reach more than 20 kg, which can increase the yield by more than 50% compared with the conventional cultivation technology.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of flax planting in the north, and more particularly to a one-season two-crop cultivation method of flax in the north. BACKGROUND

[0002] Flax fiber is excellent in quality, and is known as the queen of fibers. It is an important oil and fiber dual-purpose economic crop in the world. Flaxseed is rich in nutrients, including linolenic acid, lignan, flaxseed gum and other substances beneficial to the human body. Cold-pressed flaxseed oil has a high content of linolenic acid and is very good for human health, and is therefore popular in the market. Lignan has been proven to have good effects on breast cancer and intestinal cancer. Flaxseed gum is a good dietary fiber, and has the effects of weight loss, beauty and nutrition, and can be used to make nutrition and health food, and has certain effects on reducing the incidence of diabetes and coronary heart disease, preventing colon cancer and rectal cancer, and reducing the incidence of obesity.

[0003] Flax is an annual crop in the north, and flax can only be planted in one season. In addition, the amount of hybrid seeds F0 and low-generation seeds is small during the breeding process of flax, and breeding is needed, which affects the breeding process.

[0004] Therefore, how to provide a one-season two-crop cultivation method of flax in the north is a technical problem that those skilled in the art need to solve urgently. SUMMARY

[0005] In view of the above, the present application provides a one-season two-crop cultivation method of flax in the north.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0007] A one-season two-crop cultivation method of flax in the north, the process comprising:

[0008] 1) land preparation and sowing: land preparation in autumn, and sowing on April 20 of the next year;

[0009] 2) timely management: routine field management before the mature period, spraying urea on the leaf surface during the mature period, and timely sprinkling irrigation, and weeding when the seedlings are 8-10 cm high; after the first season of harvest, the soil humidity is kept at 60%-70% of the field water holding capacity, and spraying potassium dihydrogen phosphate on the leaf surface during the full flowering period to the green mature period.

[0010] Preferably, in step 1), the sowing is by row sowing, and the row spacing is 15 cm or 20 cm.

[0011] Preferably, in step 2), the concentration of urea sprayed on the leaf surface during the mature period is 1%.

[0012] Preferably, in step 2), the weeding is performed by using herbicides, and the herbicide is used in an amount of 45 g of chlorpyrifos and 30 ml of clethodim per mu, and 30 kg of water.

[0013] Preferably, in step 2), the seed is harvested by cutting the branches on the plant at the first season of harvest.

[0014] Preferably, in step 2), the concentration of the potassium dihydrogen phosphate is 0.5%.

[0015] In summary, the technical effects achieved by the present application are as follows:

[0016] The seed of the flax cultivated by the conventional method can only mature once, and the yield is about 40 kg per mu. The yield of the first harvest by the cultivation method of the present application is as high as 37 kg. After the first harvest, the seed can mature again, and the yield of the second harvest can reach more than 20 kg. Compared with the conventional cultivation method, the yield can be increased by more than 50%. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0018] Embodiment 1

[0019] A cultivation method of flax for one season and two harvests, the process comprising:

[0020] 1) land preparation and sowing: land preparation in autumn, and sowing on April 20 of the next year; the sowing method is strip sowing, and the row spacing is 15 cm;

[0021] 2) timely management: conventional field management before the mature period, spraying 1% urea on the leaves during the mature period, and timely sprinkling irrigation, and weeding when the seedlings are 8-10 cm high; the weeding is performed by using herbicides, and the herbicide is used in an amount of 45 g of chlorpyrifos and 30 ml of clethodim per mu, and 30 kg of water; the seed is harvested by cutting the branches on the plant at the first season of harvest; after the first harvest, the soil humidity is kept at 60%-70% of the field water holding capacity by sprinkling irrigation, and the potassium dihydrogen phosphate is sprayed on the leaves during the flowering period to the green mature period, and the concentration of the potassium dihydrogen phosphate is 0.5%.

[0022] Embodiment 2

[0023] A cultivation method of flax for one season and two harvests, the process comprising:

[0024] 1) land preparation and sowing: land preparation in autumn, and sowing on April 20 next year; the sowing method is strip sowing, and the row spacing is 20 cm;

[0025] 2) timely management: routine field management before the mature period, spraying 1% urea on the leaves during the mature period, and timely sprinkling irrigation, weeding when the seedlings are 8-10 cm high; weeding by using herbicides, the herbicide usage is 45 g of Lasso per mu, 30 ml of Clethodim, and 30 kg of water;

[0026] Example 3

[0027] A cultivation method of northern flax one-season double cropping, the process comprising:

[0028] 1) land preparation and sowing: land preparation in autumn, and sowing on April 20 next year; the sowing method is strip sowing, and the row spacing is 15 cm;

[0029] 2) timely management: routine field management before the mature period, spraying 1% urea on the leaves during the mature period, and timely sprinkling irrigation, weeding when the seedlings are 8-10 cm high; weeding by using herbicides, the herbicide usage is 45 g of Lasso per mu, 30 ml of Clethodim, and 30 kg of water;

[0030] In Examples 1-3, the seed yield obtained in the first season and the second season is shown in Table 1;

[0031] Table 1

[0032] Example 1 Example 2 Example 3 First quarter 36.8 kg 37.2 kg 35.9 kg Second quarter 20 kg 19 kg 21 kg

[0033] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts between the various embodiments can be mutually referred to.

[0034] The foregoing description of the disclosed embodiments enables a person skilled in the art to make or use the application. Modifications of these embodiments will occur to persons of skill in the art, and that the appended claims are intended to cover all such modifications that do not depart from the true spirit and scope of the application. Therefore, the application is not limited to the embodiments shown but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cultivation method of flax in the north for two crops in a season, characterized by the process Comprising: 1) land preparation and sowing: land preparation in autumn, and sowing on April 20 of next year; 2) timely management: routine field management before the mature stage, spraying urea on the leaves at the mature stage, and timely sprinkling irrigation, and weeding when the seedlings are 8-10 cm high; after the first season of harvest, the soil humidity is kept at 60%-70% of the field water holding capacity by sprinkling irrigation treatment, and spraying potassium dihydrogen phosphate on the leaves from the full flowering stage to the green mature stage; In step 2), the concentration of urea sprayed on the leaves at the mature stage is 1%; In step 2), the concentration of potassium dihydrogen phosphate is 0.5%; In step 2), at the time of the first season of harvest, the seeds are harvested by cutting from the branch part of the northern flax plant; After the first harvest, the second seed maturation can be realized.

2. A cultivation method of Linum usitatissimum L. for two crops in one season in the North, according to claim 1, characterized by, In step 1), the sowing is by strip sowing, and the row spacing is 15 cm or 20 cm.

3. A cultivation method of Linum usitatissimum L. for two crops in one season in the North, according to claim 1, characterized by, In step 2), the weeding is by using herbicides, and the herbicide usage is 45 g of lasso for each mu, 30 ml of clethodim, and 30 kg of water.