Nutrient application method at seedling stage of castanopsis hystrix
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A fertilization method, red cone technology, applied in the direction of fertilization method, application, fertilization device, etc., can solve the problem that the amount of nutrients is difficult to meet
Pending Publication Date: 2019-10-25
GUANGDONG ACAD OF FORESTRY
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[0006] The purpose of the present invention is to provide a nutrient application method for red cone seedlings in view of the problem that the amou...
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Embodiment 1
[0065] A kind of nutrient application method of red cone seedling stage, comprises the following steps:
[0066] (1) Determination of NPK content of nutrients in seedlings when red cones are transplanted: select seedlings of red cones with consistent growth, wash 50 plants with a seedling height of 8cm-10cm, dry, grind, and sieve for total N, P, and K content. Measured to obtain the initial content of N, P and K of the red cone seedlings;
[0067] (2) Determination of NPK content of red cone seedlings when they emerge from the nursery: select red cone seedlings with an average seedling height of 32 cm and a ground diameter of 5 mm, take 50 seedlings, rinse them with tap water, rinse them with distilled water three times, and place the materials in 105 ℃ blast dryer for 30 minutes, and then fully dry at 70-80 ℃, every 10 plants as a group, measure the total dry weight respectively, then measure the NPK content of each group of seedlings, and calculate the NPK required for each ...
Embodiment 2
[0074] A kind of nutrient application method experiment of red cone seedling stage, comprises the following steps:
[0075] (1) Nursery site selection: The test site is located in the greenhouse in the nursery of Guangdong Academy of Forestry Sciences (Tianhe District, Guangzhou). It is located at 23°14N, 113°23E, and 25 m above sea level. It is a typical subtropical monsoon climate with an average annual temperature of The average temperature of the lowest month is 13.3 °C (January), the average temperature of the highest month is 38.1 °C (August), the annual average humidity is 79%, the annual precipitation is 1638 mm, and the precipitation from April to September accounts for 80% of the annual precipitation;
[0076] (2) Selection of red cone seedlings: the materials used for the test are 50 red cone seedlings with the same growth, and the seedling height is 8cm~10cm;
[0077] (3) Selection of potting container: 1 plant per pot in a plastic pot with a size of 26 cm×21 cm (...
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Abstract
The invention relates to a nutrient application method at the seedling stage of castanopsis hystrix and belongs to the technical field of applying fertilizer at the seedling stage of the castanopsis hystrix. The method includes the steps of 1), determining the nutrient NPK (nitrogen, phosphorus and potassium) content of seedlings during transplanting of the castanopsis hystrix; 2), determining theNPK content of castanopsis hystrix seedlings out of nursery; 3), according to the difference of the nutrient NPK content of seedlings and NPK content of the castanopsis hystrix seedlings out of nursery, cultivating the amount of NPK needed for seedling growth; 4), distributing nutrients to each month according to an index fertilizer method in the nursery period; 5), according to the monthly dosage of NPK, preparing NPK fertilizer with ammonium nitrate HN4NO3, potassium dihydrogen phosphate KH2PO4 and potassium nitrate KNO3, that is, according to the calculated NPK content, preparing a solution; 7), according to the monthly nutrient content needed, preparing the solution for quantitative application. The nutrient application method is simple, efficient and highly practical.
Description
technical field [0001] The invention provides a nutrient application method at the seedling stage of the red cone, and belongs to the technical field of fertilization at the seedling stage of the red cone. Background technique [0002] red cone ( Castanopsis hystrix ) belongs to Fagaceae ( Fagaceae ) Castanopsis ( Castanopsis ), an evergreen tree, aliased as Cichao, Hongchao, and Hongli, with a height of about 25 m and a diameter at breast height of about 1.5 m. Red cone not only has fast growth, strong adaptability, and good soil improvement effect, but also has hard and smooth wood, easy cutting, good paint performance, durability and corrosion resistance, and beautiful color and texture. Many excellent characteristics make it the dominant tree species of subtropical evergreen broad-leaved forest in my country. It is an important part, and it is also the main afforestation tree species of the important native broad-leaved precious timber forests and high-efficiency mul...
Claims
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