CN1225971C - Root promoting agent and its preparation method and application - Google Patents

Abstract

The present invention relates to a root-stimulating agent for prompting plant seeds, root systems or cutting organs to grow early and quickly. Including benzylamine, naphthaleneacetic acid, indolebutyric acid, 6-benzylaminoadenine, and 2,4-dichlorophenoxyacetic acid. The invention also relates to its preparation method and application.

Description

Root promoting agent and its preparation method and application

technical field

The invention relates to a root-promoting agent, in particular to an agricultural composition capable of promoting rapid rooting of plant seeds or cutting organs in seedbeds and/or fields, increasing new roots, and its preparation method and application.

Background technique

In the past two decades, the production and cultivation techniques of various forest trees, food crops and fruits and vegetables have been continuously improved, which has effectively promoted the development of productivity. For example, seedbed cultivation and transplanting is an advanced cultivation technology that can promote rapid and early maturity of plants, increase yield, and enhance quality. It has brought significant economic and social benefits, and has great and far-reaching significance in current cultivation and production.

However, with the development of the times, many problems have also occurred in seedling transplanting. For example, 1) the seedbed occupies a large space, which wastes land resources and reduces land productivity; The disaster of weak seedlings and dead seedlings; 3) due to the heavy load of the carrier, the soil pot is easy to scatter, break, and damage when transporting and transplanting, so that the seedlings are easy to be injured, which is laborious, time-consuming and labor-intensive; 4) transplanting After planting, the slow seedling period is longer. Especially the slow-term problem after transplanting is the bottleneck technology of seedling transplanting, which seriously restricts the early and fast growth of seedlings. To overcome the above-mentioned defects, the effective way to reform or improve this technology is to implement no-carrier or less-carrier transplanting, but this requires plants to have a stronger root system before transplanting and a stronger rooting ability after transplanting. , in order to shorten the slow seedling period, and promote the rapid and early emergence of seedlings.

At present, there are many reports on the research and application of promoting plant rooting. For example, ABT rooting powder, which is widely used to promote the rooting of plant cuttings, is a plant growth regulator composed of indolebutyric acid and naphthaleneacetic acid. CN1061885A discloses a method for promoting rooting of cuttings by combining 6-benzylaminoadenine, indole acetic acid or naphthalene acetic acid and borax; Plant growth regulators such as naphthaleneacetic acid, naphthyloxyacetic acid in combination with indole auxins such as indole acetic acid, indole butyric acid, indole esters are used to promote plant rooting and rejuvenation. However, if the technology disclosed in the prior art is used in the advanced cultivation technology of seedling cultivation and transplanting, there are often the following problems: 1. The effect of seedling growth and promoting root and strong seedling needs to be improved, and the effect is relatively slow, which cannot meet the needs of seedling cultivation. Technical requirements for transplanting. 2. High concentration and high cost. 3. Mostly act on cutting organs. 4. The mode of action is relatively simple.

Therefore, need a kind of can make seed activity improve always, seedling takes root rapidly in seedling stage, produces numerous lateral roots in underground part, reaches strong seedling first strong root, strong seedling sends out the effect of precocity early, realizes the method for carrier-free transplanting .

Contents of the invention

The object of the present invention aims at overcoming the defect that exists in the above-mentioned prior art, seeks a kind of novel root promoting agent, by the use of this root promoting agent, seed activity can be improved, and seedling takes root rapidly in seedling stage, and produces in the underground part. The number of side roots is large, so that the roots of strong seedlings are strong first, and the strong seedlings are early and mature. Moreover, the carrier-free transplanting has been realized, which is a breakthrough compared with the previous seedling raising and transplanting, which saves labor, time and trouble, shortens the slow seedling period, and maintains a high transplant survival rate. At the same time, the preparation method and the application method of the root promoting agent are also disclosed.

The root promoting agent of the present invention is mainly composed of plant growth regulators, large and medium nutrients and micronutrients. acid (IBA), 6-benzylaminoadenine (6-BA) and 2,4-dichlorophenoxyacetic acid (2,4-D) and macronutrients (such as nitrogen, phosphorus, potassium, calcium, Magnesium) and trace elements (such as manganese, boron, zinc), trace elements can be selected one of them independently, also can use their mixture; Each component content is counted as in parts by weight:

Plant Growth Regulator 0.0001-100

Nitrogen, phosphorus, potassium, calcium, magnesium 10-500

Manganese, boron, zinc 0.001-0.500.

The plant growth regulators mentioned therein include benzylamine, naphthaleneacetic acid, indolebutyric acid, 6-benzylaminoadenine and 2,4-dichlorophenoxyacetic acid.

Preferably, the weight ratio of naphthaleneacetic acid: benzylamine: indolebutyric acid: 6-benzylaminoadenine: 2,4-dichlorophenoxyacetic acid is 0.1-10: 1.5-150: 0.1-10: 0.01 -1: 0.005-0.5; and more preferably naphthaleneacetic acid: benzylamine: indolebutyric acid: 6-benzylaminoadenine: 2,4-dichlorophenoxyacetic acid in a weight ratio of 1: 3-30 :0.5-5:0.01-1:0.01-0.1.

The root accelerator of the present invention is prepared by a conventional method, for example, each component is dissolved in water by a conventional method, and then the completely dissolved above-mentioned compounds are mixed.

In a specific embodiment, the root-promoting agent of the present invention can be formulated into an aqueous solution, wherein the concentration of each component adopts the following range (in 1 liter of solution content):

(NO ₃ ^-state )N 2.2×10 ^-3 mol-0.22mol, (PO ₄ ^3- state)P0.1×10 ^-3 mol-0.01mol, K ⁺ 0.7×10 ^-3 mol-0.07mol, Ca ^{2 +} 0.8×10 ^-3 mol-0.08mol, Mg ²⁺ 0.2×10 ^-3 mol-0.02mol; trace elements B0.025mg-2.50mg, Zn 0.010mg-1.00mg, Mn 0.025mg-2.50mg; 1.50mg-150mg; naphthaleneacetic acid 0.10mg-10mg, indolebutyric acid 0.10mg-10mg, 6-benzylaminopurine 0.01mg-1.0mg, 2,4-dichlorophenoxyacetic acid 0.005mg-0.50mg;

In preferred scheme, the concentration scope of trace elements used in aqueous solution of root promoting agent of the present invention and plant growth regulator raw material is as follows (calculated with the content of 1 liter of solution):

Boric acid containing 0.250 mg of boron, zinc sulfate containing 0.100 mg of zinc, manganese sulfate containing 0.250 mg of manganese; 15 mg of benzylamine, 1.0 mg of α-naphthalene acetic acid, 2.0 mg of indole butyric acid, 0.1 mg of 6-benzylaminopurine , 0.05 mg of 2,4-dichlorophenoxyacetic acid.

In the present invention, the NO ₃ ^-state N can be selected from commonly used nitrate nitrogen fertilizers such as sodium nitrate or calcium nitrate; the PO ₄ ^3- state P can be selected from commonly used phosphate fertilizers such as calcium superphosphate or double superphosphate; Select the well-known and commonly used varieties in this industry.

The naphthaleneacetic acid used was alpha-naphthaleneacetic acid. 2,4-D can be employed in its acid form or in salt forms such as its sodium, various amine salts.

The following non-limiting examples are used for further illustration.

Detailed ways

Example 1

Separately dissolve sodium nitrate, superphosphate, potassium sulfate, calcium chloride, magnesium sulfate, boric acid, zinc sulfate, manganese sulfate, and DPC, NAA, IBA, 6-BA, 2,4-D in water to dissolve The concentration of the above-mentioned compounds reaches the following ranges respectively (calculated with the content of 1 liter of solution):

(Sodium nitrate) N 0.022mol, (calcium superphosphate) P 0.001mol, (potassium sulfate) K 0.007mol, (calcium chloride, superphosphate) Ca 0.008mol, (magnesium sulfate) Mg0.002mol; boron 0.250mg boric acid, zinc sulfate containing 0.100 mg of zinc, manganese sulfate containing 0.250 mg of manganese, and DPC (benzyl amine crystal) 15 mg; NAA (α-naphthalene acetic acid) 1.0 mg, IBA (indole butyric acid) 2.0 mg, 6 - BA (6-benzylaminopurine) 0.1 mg, 2,4-D (2, 4-dichlorophenoxyacetic acid) 0.05 mg; then mix the completely dissolved above-mentioned compounds to obtain the root accelerator of the present invention.

Example 2

Calcium nitrate, double superphosphate, potassium chloride, calcium chloride, magnesium sulfate, borax, zinc sulfate, manganese sulfate, and DPC, NAA, IBA, 6-BA, 2,4-D were dissolved in water separately, Make the concentration of the above-mentioned compound of dissolving reach following range respectively (calculate with the content of 1 liter of solution):

(calcium nitrate) N 0.05mol, (double superphosphate) P 0.005mol, (potassium chloride) K 0.01mol, (calcium chloride, calcium nitrate, double superphosphate) Ca 0.01mol, (magnesium sulfate) Mg 0.005 mol; boric acid containing 0.50 mg of boron, zinc sulfate containing 0.2 mg of zinc, manganese sulfate containing 0.50 mg of manganese, and DPC (benzyl amine crystal) 15 mg; NAA (α-naphthalene acetic acid) 2 mg, IBA (indole butyric acid ) 5mg, 6-BA (6-benzylaminopurine) 0.2mg, 2,4-D (2,4-dichlorophenoxyacetic acid 0.1mg; then the above-mentioned compound that dissolves completely is mixed and obtains root promoting agent of the present invention .

Sow the seeds on the seedbed after soaking the root promoting agent solution described in the present invention for 8-12 hours at normal temperature. The amount of water determines the irrigation amount, and the irrigation solution uses the root accelerator solution of the present invention. After emergence, water the roots with the root-promoting agent solution of the present invention to replenish water regularly, which can make the roots luxuriant and strong. Plant it in the field, and pour the "anjia water" thoroughly after transplanting. Then carry out normal field management.

Experimental Example 1

With root promoting agent of the present invention described in embodiment 1 soaking cotton kind 8-12 hour, take Hongland nutrient solution soaking seed simultaneously as contrast, next day sow in the potted field of cultivation room of Cotton Research Institute of Chinese Academy of Agricultural Sciences, seedbed selects for use with vermiculite, The substrate mixed with fine gravel and river sand in a certain proportion, the temperature is controlled at 25-35°C, and the water is suitable. The seedling age is about 20 days to the stage of two leaves and one heart, and it is transplanted after 25 days. During the 5th, 9th, 13th, 18th, 24th, water the root-promoting agent solution (about 8 liters per square meter) of the present invention respectively, and contrast is Hongland nutrient solution. Before transplanting, the roots of the seedlings were soaked with the root-promoting agent of the present invention and the Hongland nutrient solution for 20 minutes respectively, and the observation results after 3 days of transplanting: the survival rate of cotton seedlings treated with the root-promoting agent of the present invention was 100%, compared with 87%; 1 day, compared with 2 days. And carried out 4 leaf stage seedling condition investigations to the seedling that water root is cultivated with root-promoting agent of the present invention, see following table 1:

Table 1. Root-stimulating agent of the present invention waters root cotton seedling 4 leaf stage seedling condition No. 123 Root-promoting agent Hongland nutrient solution of the present invention The fresh weight of true leaves, the number of long and side roots, the number of long and side roots, the number of long and side roots within 10 cm of the fresh weight of true leaves, the number of long and side roots, the number of sides within 10 cm (g) (cm) (pieces) (g) the number of root densities (g) (cm) (pieces) ( g) Root density 4.0 4.5 16.2 60 0.90 5.5 4.0 3.0 10.8 40 0.30 3.74.0 2.7 9.2 42 0.30 4.0 3.4 11.8 44 0.40 4.13.3 55 0.40 3.4 9.1 35 0.30 3.8.8 4 average 3.5 2.8 16.0 55 0.70 5.1 3.5 1.8 12.0 41 0.20 3.93.8 3.5 13.4 53 0.58 5.1 3.9 2.9 10.9 40 0.30 3.9

Experimental example 2

The root-stimulating agent of the present invention described in embodiment 1 and No. ABT4 root-inducing powder (system national science and technology achievement key popularization product) are done comparison test in the greenhouse of Cotton Research Institute of Chinese Academy of Agricultural Sciences, all adopt first soaking seed, then in vermiculite and sand Seedling cultivation on the mixed substrate of the present invention, root-promoting agent formulation dose of the present invention and No. ABT4 rooting powder 10ppm intermittent root irrigation during the period, contrast is clear water. And in a period of time after root irrigation, the seedlings were taken for investigation, and the results are shown in Table 2:

Table 2. The seedling quality contrast of root-promoting agent of the present invention and No. ABT4 rooting powder seedling cultivation Measurement date deal with Fresh weight (g/plant) Number of lateral roots (piece/plant) Fresh weight of lateral roots (g/plant) Dry weight of lateral roots (g/plant) 10cm lateral root density (pcs/cm) 2nd day 7th day 16th day 22nd day Clear water root-promoting agent ABT No.4 rooting powder of the present invention Clear water root-promoting agent ABT No.4 rooting powder of the present invention Clear water root-promoting agent ABT No. 0.830.950.541.061.321.281.461.931.941.712.062.03 28.739.629.743.363.345.733.742.742.741.747.042.3 0.080.120.050.160.240.200.280.330.310.330.440.29 ------0.0200.0390.0290.0250.0430.030 5.25.44.95.35.74.94.54.75.24.95.44.8

Remarks: transplanting is carried out on the 24th day (transplanting without soil after soaking roots for 25 minutes at the same time), observe the slow seedling stage, use the root promoting agent of the present invention for 2 days, ABT4 for 4 days, clear water for 5 days.

In summary, according to the above-mentioned experimental data, it can be seen that by using the root-stimulating agent of the present invention and the supporting technology, the seedlings can be promoted to grow early and fast, and when growing seedlings, the seedbed occupies a small area and the management is centralized , the seedling quality is good, the risk is small, and it has great development prospects.

Claims (6)

1. a rooting promoter that impels plant seed, root system or cuttage organ Sheng Xingen mainly is made up of plant growth regulator, big-and-middle amount nutritive element and micronutrient element, it is characterized in that described each constituent content is counted with parts by weight:

Plant growth regulator 0.0001-100

Big-and-middle amount nutritive element 10-500

Micronutrient element 0.001-0.500

Wherein said plant growth regulator comprises mepiquat chloride, methyl, indolebutyric acid, 6-benzylamino adenine and 2, the 4-dichlorphenoxyacetic acid, methyl: mepiquat chloride: indolebutyric acid: 6-benzylamino adenine: the weight ratio of 2,4 dichlorophenoxyacetic acid is 0.1-10: 1.5-150: 0.1-10: 0.01-1: 0.005-0.5; Described big-and-middle amount nutrient is selected from one or more in nitrogen, phosphorus, potassium, calcium and the magnesium; Described micronutrient element is selected from one or more in manganese, boron and the zinc.

2. rooting promoter according to claim 1, wherein, methyl: mepiquat chloride: indolebutyric acid: 6-benzylamino adenine: the weight ratio of 2,4 dichlorophenoxyacetic acid is 1: 3-30: 0.5-5: 0.01-1: 0.01-0.1.

3. rooting promoter according to claim 1, wherein, raw materials used concentration range following (with the cubage of 1 liter of solution):

(NO ₃ ^-Attitude) N 2.2 * 10 ^-3Mol-0.22mol, (PO ₄ ^3-Attitude) P0.1 * 10 ^-3Mol-0.01mol, K ⁺0.7 * 10 ^-3Mol-0.07mol, Ca ²⁺0.8 * 10 ^-3Mol-0.08mol, Mg ²⁺0.2 * 10 ^-3Mol-0.02mol; Trace element B0.025mg-2.50mg, Zn 0.010mg-1.00mg, Mn 0.025mg-2.50mg; Mepiquat chloride 1.50mg-150mg; Methyl 0.10mg-10mg, indolebutyric acid 0.10mg-10mg, 6-benzylaminopurine 0.01mg-1.0mg, 2,4 dichlorophenoxyacetic acid 0.005mg-0.50mg.

4. rooting promoter according to claim 3, wherein, raw materials used concentration range following (with the cubage of 1 liter of solution):

The boric acid of boracic 0.250mg contains the zinc sulphate of zinc 0.100mg, contains the manganese sulphate of manganese 0.250mg; Mepiquat chloride 15mg, α-Nai Yisuan 1.0mg, indolebutyric acid 2.0mg, 6-benzylaminopurine 0.1mg, 2,4 dichlorophenoxyacetic acid 0.05mg.

5. the method for preparing arbitrary described rooting promoter of claim 1-4 is characterized in that getting described each component by described weight ratio dissolves separately, and each component that will thoroughly dissolve is then mixed.

6. the application of the arbitrary described rooting promoter of claim 1-4 is characterized in that, described rooting promoter is used for seed soaking, soaks cutting, dips in root or water underground root.