CN110810202A

CN110810202A - Seedling raising substrate suitable for apocarya

Info

Publication number: CN110810202A
Application number: CN201911183246.6A
Authority: CN
Inventors: 胡廷旭; 赵秋霞; 洪凯玲; 戴剑; 何莉; 史鑫; 莫斌
Original assignee: Jiangsu Australian Eco Garden Ltd By Share Ltd
Current assignee: Jiangsu Australian Eco Garden Ltd By Share Ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-02-21

Abstract

The application discloses seedling raising substrate suitable for apocarya contains according to the mass ratio: 70-80% of turfy soil, 5-10% of perlite, 2-5% of vermiculite and 5-10% of sandy loam, adding a proper amount of water, mixing, and performing decomposition treatment for 10 days by using an organic decomposition microbial agent. The invention has the advantages of quantifying the range of the physical and chemical properties of the seedling substrate, promoting the lateral root growth capability of the carya illinoensis, and reducing the top growth advantage of the root system.

Description

Seedling raising substrate suitable for apocarya

Technical Field

The invention relates to a seedling raising substrate, in particular to a seedling raising substrate suitable for apocarya.

Background

The research of the fruit tree cultivation and seedling raising substrate in China is late, and corresponding standards and products are lacked all the time. The carya illinoensis is used as an introduced nut economic crop, and has short introduction time, small and dispersed planting area, so that the research on the culture and seedling medium is less. At present, most apocarya adopts open-field direct planting seedling raising, the open-field direct planting seedling raising mode seriously restricts the growth of the root system of the apocarya, and is not beneficial to the subsequent transplanting management of seedlings. Some planting bases and research institutions also adopt formulas to grow seedlings, but the seedlings are produced by referring to the formula of the vegetable planting matrix, the deep analysis of the physicochemical property of the matrix is lacked, and the optimal proportion suitable for the growth of the apocarya seedlings is difficult to determine. For example, according to a patent formula of apocarya manufactured by Jiangsu Shuimu agricultural scene company, a formula matrix is based on turf: perlite: the loess 3:2:1 is mixed, no experimental study of other mixture ratios is given, and the physicochemical index of the energy-based matrix is not given. Based on the production requirement of project apocarya high-quality seedlings, screening and optimizing an apocarya seedling raising matrix formula, and further quantifying the physical and chemical index range of the apocarya seedling raising matrix.

Disclosure of Invention

The invention aims to provide a seedling raising substrate suitable for apocarya, which promotes the lateral root growth capability of the apocarya and reduces the root top growth advantage.

In order to achieve the above object, the present invention provides the following technical solutions.

The embodiment of the application discloses a seedling raising substrate suitable for apocarya, which comprises the following components in percentage by mass: 70-80% of turfy soil, 5-10% of perlite, 2-5% of vermiculite and 5-10% of sandy loam, adding a proper amount of water, mixing, and performing decomposition treatment for 10 days by using an organic decomposition microbial agent.

Preferably, in the seedling raising substrate suitable for the carya illinoensis, the volume weight is 0.2-0.8g/cm³。

Preferably, in the seedling raising substrate suitable for apocarya, the total porosity is 70-80%.

Preferably, in the seedling raising substrate suitable for the carya illinoensis, the organic matter is 50-80%.

Preferably, in the seedling raising substrate suitable for the carya illinoensis, the cation exchange capacity is 20-80 cmol/kg.

Preferably, in the seedling raising substrate suitable for the carya illinoensis, the conductivity is less than 2.5 ms/cm.

Preferably, in the seedling raising substrate suitable for the carya illinoensis, the pH is 5-7.

Preferably, in the seedling raising substrate suitable for the carya illinoensis, the water content is less than 40%.

Preferably, in the seedling raising substrate suitable for the carya illinoensis, the hydrolytic nitrogen is 40-200 mg/kg.

Preferably, in the seedling raising substrate suitable for the carya illinoensis, the quick-acting phosphorus is 10-60mg/kg, and the quick-acting potassium is 10-60 mg/kg.

The invention provides a seedling raising substrate suitable for pecans (pecans), which quantifies the range of physical and chemical properties and quantity of the seedling raising substrate, promotes the lateral root growth capability of the pecans, and reduces the top growth advantage of root systems.

Detailed Description

Technical solutions in the embodiments of the present invention will be described in detail below, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

The invention selects turf, vermiculite, perlite and sandy loam as basic matrix materials. The turf mainly has the functions of providing organic matters required by seedling growth, the vermiculite is mainly used for increasing the air permeability of the matrix, the perlite is used for increasing the water and fertilizer retention capacity of the matrix, and the sandy loam provides a soil environment required by root growth.

The following will use 3 groups of embodiments of the present technical solution and 3 groups to illustrate the proportion, and the proportion of each component in the 3 groups of embodiments is as follows:

ratio of ingredients	Turfy soil	Perlite	Vermiculite	Sand soil
					Example 1	75％	10％	5％	10％
Example 2	78％	10％	3％	9％
					Example 3	80％	8％	4％	8％

In the above embodiment, a proper amount of water is added and mixed, and the organic decomposing microbial inoculum is selected for decomposing for 10 days, 1% of the decomposing microbial inoculum is added, and the content of the microbial inoculum is 1000 hundred million/g.

The matrix is further optimized, the physical and chemical property indexes of the matrix are quantified, the compound seedling culture matrix is further tested, and the specific formula indexes are expressed as follows:

the control group adopts the formula of the existing ground substance of Sihong thin-shelled walnut planting base:

comparative example 1 used sandy loam: perlite: the formula of the wormcast is 1:1:2,

comparative example 2 used peatmoss: perlite: the formula of the wormcast is 1:1: 2;

comparative example 3 a control was used for conventional open field cultivation.

Each test treatment is set to be 3 times, and 10 carya illinoensis seedling seedlings with uniform seedling growth vigor are selected repeatedly.

The test is carried out in a container seedling raising mode, and the size of each nutrition pot is 15cm in caliber and 25cm in height. And (3) valuing the seedling of the 2-leaf carya illinoensis seedling into a compound substrate nutrition pot in 1 month, and observing and recording the growth condition of the carya illinoensis at intervals of 3, 5, 7, 10, 14, 30 days and 3 months after valuing. The results are as follows:

as can be seen from the table above, when the seedling substrate provided by the technical scheme of the invention is used for culturing pecan (pecan) seedlings, the survival rate, the average plant height and the average ground diameter of the seedlings are all obviously higher than those of a control group, the length of the main root of the seedlings is obviously lower than that of the control group, and the seedling substrate can obviously improve the supply of excellent seedlings in a nursery.

Through a plurality of tests, the matrix adopting the technical scheme has the main characteristics that:

1. the survival rate of the seedlings reaches more than 95 percent;

2. the growth speed of the seedlings is accelerated, and the height of the seedlings is more than 30cm within 3 months;

3. regulating and controlling the growth of the root system, inhibiting the growth of the main root and reducing the length of the main root by 5-10 percent;

4. the seedling revival time is reduced, and the seedling revival period after transplanting is shortened to 1-3 days;

5. the soil ball spreading rate in the transplanting process is reduced: the spreading rate is lower than 5 percent.

The present embodiments are to be considered as illustrative and not restrictive, and the scope of the patent is to be determined by the appended claims.

Claims

1. A seedling raising substrate suitable for apocarya is characterized by comprising the following components in percentage by mass: 70-80% of turfy soil, 5-10% of perlite, 2-5% of vermiculite and 5-10% of sandy loam, adding a proper amount of water, mixing, and performing decomposition treatment for 10 days by using an organic decomposition microbial agent.

2. A seedling raising substrate suitable for apocarya as claimed in claim 1, which has a bulk weight of 0.2 to 0.8g/cm³。

3. A seedling raising substrate suitable for carya illinoensis as claimed in claim 1, wherein the total porosity is 70-80%.

4. A seedling raising substrate suitable for carya illinoensis as claimed in claim 1, wherein the organic matter is 50-80%.

5. A seedling raising substrate suitable for apocarya as claimed in claim 1, wherein the cation exchange capacity is 20 to 80 cmol/kg.

6. A seedling raising substrate suitable for carya illinoensis according to claim 1, characterized in that its electrical conductivity is < 2.5 ms/cm.

7. A seedling raising substrate suitable for apocarya as claimed in claim 1, which has a pH of 5 to 7.

8. A seedling raising substrate suitable for carya illinoensis as claimed in claim 1, wherein the moisture content is < 40%.

9. A seedling raising substrate suitable for carya illinoensis as claimed in claim 1, wherein the hydrolyzable nitrogen is 40-200 mg/kg.

10. A seedling raising substrate suitable for apocarya as claimed in claim 1, wherein the fast-acting phosphorus is 10-60mg/kg and the fast-acting potassium is 10-60 mg/kg.