CN111201963A

CN111201963A - American fast-growing lettuce cultivation method

Info

Publication number: CN111201963A
Application number: CN201811391049.9A
Authority: CN
Inventors: 吴伟
Original assignee: Nanchong Yuzhidao Agricultural Development Co ltd
Current assignee: Nanchong Yuzhidao Agricultural Development Co ltd
Priority date: 2018-11-21
Filing date: 2018-11-21
Publication date: 2020-05-29

Abstract

The invention discloses a method for cultivating American fast-growing lettuce, which is characterized by comprising the following steps: the method comprises the following steps of (1) selecting land and leveling land, selecting fertile and loose loam soil with rich organic matters and good drainage and irrigation as a Jingshui vegetable planting land, (2) growing seedlings, (3) field planting, (4) field management, and (5) harvesting.

Description

American fast-growing lettuce cultivation method

Technical Field

The invention relates to a plant cultivation method, in particular to a cultivation method of American fast-growing lettuce.

Background

The American fast-growing lettuce has the advantages of compact plant growth, scattered leaf type, more wrinkled leaves, wavy leaf edges, light green leaf color, high growth speed, 45 days of growth period, sweet and crisp quality, no fiber, difficulty in bolting, capability of being eaten by tender leaves and white petioles, and unique fragrance. The American fast-growing lettuce is rich in carbohydrate, protein, multiple vitamins and minerals. The American fast-growing lettuce is suitable for being eaten raw or used as a rinsing dish, has the effects of hypnosis and analgesia, and has better health-care effect on headache and neurasthenia personnel. The existing American big fast-growing lettuce is planted in all parts of China, but the yield is generally not high due to the fact that the cultivation method is not scientific enough.

Disclosure of Invention

The invention aims to provide a method for cultivating American fast-growing lettuce with high yield, which is realized by the following technical scheme, and comprises the steps of land selection and land preparation, seedling and field planting, field management and harvesting, and is characterized by being carried out according to the following steps:

1. selecting soil for land preparation and bed preparation, selecting fertile loose loam with rich organic matters and good irrigation and drainage as a planting field of American big fast-growing lettuce, applying enough base fertilizer before sowing, applying 1000kg of decomposed farmyard manure per mu, building a high bed with the width of 1-1.2 meters after ploughing, and flattening the surface of the bed and breaking the soil;

2. seedling raising, namely directly seeding the American fast-growing lettuce all the year round except summer, wherein the seed consumption per square meter is 20-25 g during seedling raising, watering once after seeding, allowing 3-4 seedlings to germinate, and transplanting and planting after 3 true leaves are obtained;

3. planting, planting according to the row spacing of 25-30cm and the plant spacing of 20cm, planting about 10000 plants per mu, planting too deeply, placing the leaf base of the plantlet on the soil surface, and watering after planting;

4. performing field management, A, water and fertilizer management, wherein after planting water, if the water situation of soil is poor, watering is needed again, seedlings are kept not to wither and droop, no fertilizer is applied in the early growth stage, when 4-5 leaves grow out, 2-3 times of nitrogen fertilizer or decomposed human excrement and urine fertilizer is applied additionally, and no fertilizer is needed to be applied again before harvesting; B. intertillage weeding is carried out, other plants are not intercropped, intertillage weeding is carried out in time, and weeds are removed through shallow loosening; C. pest control, namely, easily-grown downy mildew in a low-temperature and extremely-humid environment, spraying chlorothalonil for control, wherein pest mainly comprises aphids and white chalk word lice, and spraying are used for control;

5. harvesting, wherein the whole seedlings of the American fast-growing lettuce can be pulled out and harvested when the height of the seedlings reaches 30 cm; and (4) cutting and harvesting the large plants at one time about 40 days after planting.

The method for cultivating the fast-growing lettuce in America has high yield, the yield per mu is more than 2500kg, and the commodity of the product is good.

Detailed Description

Embodiment 1, a method for cultivating fast-growing lettuce in the united states, comprising land selection and furrow preparation, seedling and field planting, field management and harvest, characterized by the following steps: 1. selecting soil for land preparation and bed preparation, selecting fertile loose loam with rich organic matters and good irrigation and drainage as a planting field of American big fast-growing lettuce, applying enough base fertilizer before sowing, applying 1000kg of decomposed farmyard manure per mu, building a high bed with the width of 1-1.2 meters after ploughing, and flattening the surface of the bed and breaking the soil; 2. seedling raising, namely directly seeding the American fast-growing lettuce all the year round except summer, wherein the seed consumption per square meter is 20-25 g during seedling raising, watering once after seeding, allowing 3-4 seedlings to germinate, and transplanting and planting after 3 true leaves are obtained; 3. planting, planting according to the row spacing of 25-30cm and the plant spacing of 20cm, planting about 10000 plants per mu, planting too deeply, placing the leaf base of the plantlet on the soil surface, and watering after planting; 4. performing field management, A, water and fertilizer management, wherein after planting water, if the water situation of soil is poor, watering is needed again, seedlings are kept not to wither and droop, no fertilizer is applied in the early growth stage, when 4-5 leaves grow out, 2-3 times of nitrogen fertilizer or decomposed human excrement and urine fertilizer is applied additionally, and no fertilizer is needed to be applied again before harvesting; B. intertillage weeding is carried out, other plants are not intercropped, intertillage weeding is carried out in time, and weeds are removed through shallow loosening; C. pest control, namely, controlling downy mildew easily under low temperature and extremely humid environment, spraying chlorothalonil, controlling aphids and white chalk word lice mainly in the insect pit, and controlling by spraying one-spraying-clean; 5. harvesting, wherein the whole seedlings of the American fast-growing lettuce can be pulled out and harvested when the height of the seedlings reaches 30 cm; after the American fast-growing lettuce is planted for about 40 days, the big plants are harvested at one time.

Claims

1. A method for cultivating American fast-growing lettuce comprises the steps of land selection and land preparation, seedling and field planting, field management and harvesting, and is characterized by comprising the following steps:

(1) selecting soil for land selection and bed preparation, selecting fertile and loose loam with rich organic matters and good irrigation and drainage as a planting field of American big fast-growing lettuce, applying enough base fertilizer before sowing, applying 1000kg of decomposed farmyard manure per mu, building a high bed with the width of 1-1.2 meters after ploughing, and flattening the surface of the bed and breaking the soil;

(2) the method comprises the following steps of (1) directly seeding the American fast-growing lettuce all the year round except summer, wherein the seed consumption per square meter is 20-25 g during seedling growing, watering once after the seeding, germinating for 3-4 days, and transplanting and planting when 3 true leaves are produced;

(3) planting, planting according to the row spacing of 25-30cm and the plant spacing of 20cm, planting about 10000 plants per mu, planting too deeply, placing the leaf base of the plantlet on the soil surface, and watering after planting;

(4) b, field management, A, water and fertilizer management, wherein after water is planted for 2-3 days, if the water content of soil is poor, watering is carried out again, seedlings are kept not to wither and droop, and when 4-5 leaves grow out of the plants, top dressing of 2-3 times nitrogen fertilizer or decomposed human excrement and urine fertilizer is started; B. intertillage weeding is carried out, other plants are not intercropped, intertillage weeding is carried out in time, and weeds are removed through shallow loosening; C. pest control, namely, easily-grown downy mildew in a low-temperature and extremely-humid environment, spraying chlorothalonil for control, wherein pest mainly comprises aphids and white chalk word lice, and spraying are used for control;

(5) harvesting, wherein the whole plant can be pulled out and harvested when the height of the American fast-growing lettuce seedlings reaches 35 cm; and (4) cutting and harvesting the large plants at one time about 40 days after planting.