Tobacco seedling cultivation method

Abstract

The invention discloses a tobacco seedling cultivation method. The tobacco seedling cultivation method includes: cultivating seedlings in a seedling cultivation device, wherein the seedling cultivation device is arranged in a seedling cultivation greenhouse, the seedling cultivation device includes a liquid pool, a height-adjustable support positioned above the liquid pool, seedling cultivation plates positioned on the support, mediums positioned in the seedling cultivation plates, and a nutriment solution positioned in the liquid pool. The tobacco seedling cultivation method includes management before sowing, seedling cultivation management, and seedling training. The tobacco seedling cultivation method can perform root pruning and disinfection on the tobacco seedlings, can effectively solve the problem of spiral roots in floating cultivation, and can improve the resistance of the tobacco seedlings to diseases. The method can train the seedlings through the adjustable support, and is easy to operate; and the cultivation medium has nutshell activated carbon which can improve the breathability of the medium, and the growth vigor of the tobacco seedlings is good.

Description

technical field

[0001] The invention relates to the technical field of agricultural planting, in particular to a method for growing tobacco seedlings. Background technique

[0002] Tobacco seedling cultivation methods mainly include soil culture, hydroponics and floating seedling cultivation. Floating seedling cultivation is popular for its advantages of high production efficiency, high uniformity of tobacco seedlings, well-developed root system, and convenient long-distance transportation and transplanting. However, the floating cultivation of tobacco is also prone to phenomena such as spiral roots and tall seedlings, and it is also prone to serious growth of green algae, which affects the cultivation of tobacco seedlings. On the preventive screw roots, the air whole root seedling method is generally adopted. The specific method is to make the upper opening of the seedling hole smaller and the lower opening larger, and the bottom is completely opened in the air. The substr...

Examples

Embodiment 1

[0025] A method for raising tobacco seedlings. The method includes growing seedlings in a seedling raising device, the seedling raising device is placed in a seedling growing shed, and the seedling raising device includes a liquid storage tank, an adjustable height support frame located above the liquid storage tank; , with a structure that is wide at the top and narrow at the bottom, and the bottom is a black seedling tray with a fiber mesh layer, and 100 parts by mass of leaf humus, 1 part of yellow sand, 30 parts of peat, 5 parts of nut shell activated carbon, and leeches are located in the seedling tray. 10 parts of stone and 5 parts of expanded perlite form the matrix and are located in the liquid storage tank. The nutrient solution is composed of the following components: urea 0.65g / L, diammonium phosphate 0.16g / L, lime nitrogen 0.55g / L, nitric acid Potassium 0.26g / L, potassium sulfate 0.83g / L, superphosphate 0.46g / L, ammonium chloride 0.45g / L, ammonium nitrate 0.15g / L, w...

Embodiment 2

[0032] A method for raising tobacco seedlings. The method includes growing seedlings in a seedling raising device, the seedling raising device is placed in a seedling growing shed, and the seedling raising device includes a liquid storage tank, an adjustable height support frame located above the liquid storage tank; , with a structure that is wide at the top and narrow at the bottom, and a black seedling tray with a fiber mesh layer at the bottom, and 80 parts by mass of leaf humus, 5 parts of yellow sand, 20 parts of peat, 10 parts of nutshell activated carbon, and leeches in the seedling tray. 1 part of stone and 10 parts of expanded perlite form the matrix and are located in the reservoir. The nutrient solution is composed of the following components: urea 0.56g / L, diammonium phosphate 0.23g / L, lime nitrogen 0.36g / L, nitric acid Potassium 0.45g / L, potassium sulfate 0.74g / L, superphosphate 0.65g / L, ammonium chloride 0.35g / L, ammonium nitrate 0.35g / L, the mass ratio is 3:1:4:...

Embodiment 3

[0039]A method for raising tobacco seedlings. The method includes growing seedlings in a seedling raising device, the seedling raising device is placed in a seedling growing shed, and the seedling raising device includes a liquid storage tank, an adjustable height support frame located above the liquid storage tank; , with a structure that is wide at the top and narrow at the bottom, and the bottom is a black seedling tray with a fiber mesh layer, and 90 parts by mass of leaf humus, 4 parts of yellow sand, 25 parts of peat, 8 parts of nutshell activated carbon, and leeches are located in the seedling tray. 8 parts of stone and 8 parts of expanded perlite form the matrix and are located in the liquid storage tank. The nutrient solution is composed of components with the following concentrations: urea 0.60g / L, diammonium phosphate 0.20g / L, lime nitrogen 0.40g / L, nitric acid Potassium 0.30g / L, potassium sulfate 0.80g / L, superphosphate 0.50g / L, ammonium chloride 0.40g / L, ammonium n...

technical field

[0001] The invention relates to the technical field of agricultural planting, in particular to a method for growing tobacco seedlings. Background technique

[0002] Tobacco seedling cultivation methods mainly include soil culture, hydroponics and floating seedling cultivation. Floating seedling cultivation is popular for its advantages of high production efficiency, high uniformity of tobacco seedlings, well-developed root system, and convenient long-distance transportation and transplanting. However, the floating cultivation of tobacco is also prone to phenomena such as spiral roots and tall seedlings, and it is also prone to serious growth of green algae, which affects the cultivation of tobacco seedlings. On the preventive screw roots, the air whole root seedling method is generally adopted. The specific method is to make the upper opening of the seedling hole smaller and the lower opening larger, and the bottom is completely opened in the air. The substr...

Examples

Embodiment 1

[0025] A method for raising tobacco seedlings. The method includes growing seedlings in a seedling raising device, the seedling raising device is placed in a seedling growing shed, and the seedling raising device includes a liquid storage tank, an adjustable height support frame located above the liquid storage tank; , with a structure that is wide at the top and narrow at the bottom, and the bottom is a black seedling tray with a fiber mesh layer, and 100 parts by mass of leaf humus, 1 part of yellow sand, 30 parts of peat, 5 parts of nut shell activated carbon, and leeches are located in the seedling tray. 10 parts of stone and 5 parts of expanded perlite form the matrix and are located in the liquid storage tank. The nutrient solution is composed of the following components: urea 0.65g / L, diammonium phosphate 0.16g / L, lime nitrogen 0.55g / L, nitric acid Potassium 0.26g / L, potassium sulfate 0.83g / L, superphosphate 0.46g / L, ammonium chloride 0.45g / L, ammonium nitrate 0.15g / L, w...

Embodiment 2

[0032] A method for raising tobacco seedlings. The method includes growing seedlings in a seedling raising device, the seedling raising device is placed in a seedling growing shed, and the seedling raising device includes a liquid storage tank, an adjustable height support frame located above the liquid storage tank; , with a structure that is wide at the top and narrow at the bottom, and a black seedling tray with a fiber mesh layer at the bottom, and 80 parts by mass of leaf humus, 5 parts of yellow sand, 20 parts of peat, 10 parts of nutshell activated carbon, and leeches in the seedling tray. 1 part of stone and 10 parts of expanded perlite form the matrix and are located in the reservoir. The nutrient solution is composed of the following components: urea 0.56g / L, diammonium phosphate 0.23g / L, lime nitrogen 0.36g / L, nitric acid Potassium 0.45g / L, potassium sulfate 0.74g / L, superphosphate 0.65g / L, ammonium chloride 0.35g / L, ammonium nitrate 0.35g / L, the mass ratio is 3:1:4:...

Embodiment 3

[0039]A method for raising tobacco seedlings. The method includes growing seedlings in a seedling raising device, the seedling raising device is placed in a seedling growing shed, and the seedling raising device includes a liquid storage tank, an adjustable height support frame located above the liquid storage tank; , with a structure that is wide at the top and narrow at the bottom, and the bottom is a black seedling tray with a fiber mesh layer, and 90 parts by mass of leaf humus, 4 parts of yellow sand, 25 parts of peat, 8 parts of nutshell activated carbon, and leeches are located in the seedling tray. 8 parts of stone and 8 parts of expanded perlite form the matrix and are located in the liquid storage tank. The nutrient solution is composed of components with the following concentrations: urea 0.60g / L, diammonium phosphate 0.20g / L, lime nitrogen 0.40g / L, nitric acid Potassium 0.30g / L, potassium sulfate 0.80g / L, superphosphate 0.50g / L, ammonium chloride 0.40g / L, ammonium n...