阅读说明：本技术 一种促进水稻根部发育的水稻育苗肥料及制备和使用方法 (Rice seedling raising fertilizer for promoting rice root development and preparation and use methods thereof ) 是由 董玉冰 周冠希 黄良友 董入宝 庄海辉 陈海英 于 2019-10-31 设计创作，主要内容包括：本发明提供一种促进水稻根部发育的水稻育苗肥料及制备和使用方法,所述水稻育苗肥料包括以下重量份的原料：硫酸钾15～26份、硫酸锌8～17份、磷酸二铵20～34份、硼酸6～15份、腐殖酸5～8份、壳聚糖8～17份、海藻酸钠5～7份、椰糠粉2～5份、鸡蛋花叶3～7份、石菖蒲根茎提取物7～15份和复合菌剂2～4份,所述复合菌剂由哈茨木霉、多粘类芽孢杆菌和枯草芽孢杆菌按质量比1：0.2～0.4：3～5制得。采用本发明的水稻育苗肥料进行育苗,其促进秧苗根部发育,秧苗根系发育状态良好,利于秧苗生长,秧苗利用率高,应用于沿海地区育苗和种植,能够降低台风暴雨等恶劣天气对秧苗损害。(The invention provides a rice seedling raising fertilizer for promoting the development of rice roots and a preparation and use method thereof, wherein the rice seedling raising fertilizer comprises the following raw materials in parts by weight: 15-26 parts of potassium sulfate, 8-17 parts of zinc sulfate, 20-34 parts of diammonium phosphate, 6-15 parts of boric acid, 5-8 parts of humic acid, 8-17 parts of chitosan, 5-7 parts of sodium alginate, 2-5 parts of coconut powder, 3-7 parts of egg flower and leaf, 7-15 parts of rhizoma acori graminei rhizome extract and 2-4 parts of composite microbial agent, wherein the composite microbial agent is prepared from trichoderma harzianum, paenibacillus polymyxa and bacillus subtilis according to the mass ratio of 1: 0.2-0.4: 3-5. The rice seedling raising fertilizer disclosed by the invention is used for raising seedlings, the growth of the roots of the seedlings is promoted, the growth state of the root systems of the seedlings is good, the growth of the seedlings is facilitated, the utilization rate of the seedlings is high, and the rice seedling raising fertilizer is applied to seedling raising and planting in coastal areas and can reduce the damage of typhoon, rainstorm and other severe weather to the seedlings.)

1. A rice seedling raising fertilizer for promoting the development of rice roots is characterized by comprising the following raw materials in parts by weight: 15-26 parts of potassium sulfate, 8-17 parts of zinc sulfate, 20-34 parts of diammonium phosphate, 6-15 parts of boric acid, 5-8 parts of humic acid, 8-17 parts of chitosan, 5-7 parts of sodium alginate, 2-5 parts of coconut powder, 3-7 parts of egg flower and leaf, 7-15 parts of rhizoma acori graminei rhizome extract and 2-4 parts of composite microbial agent, wherein the composite microbial agent is prepared from trichoderma harzianum, paenibacillus polymyxa and bacillus subtilis according to the mass ratio of 1: 0.2-0.4: 3-5.

2. The rice seedling raising fertilizer for promoting rice root development according to claim 1, which is characterized by comprising the following raw materials in parts by weight: 21 parts of potassium sulfate, 12 parts of zinc sulfate, 27 parts of diammonium phosphate, 9 parts of boric acid, 7 parts of humic acid, 12 parts of chitosan, 6 parts of sodium alginate, 3 parts of coconut husk powder, 5 parts of egg flower leaf powder, 12 parts of rhizoma acori graminei rhizome extract and 3 parts of composite microbial inoculum.

3. The rice seedling raising fertilizer for promoting rice root development as claimed in claim 1, wherein the complex microbial inoculum is prepared from trichoderma harzianum, paenibacillus polymyxa and bacillus subtilis according to a weight ratio of 1: 0.3: 4, and (4).

4. The fertilizer for raising rice seedlings for promoting development of rice roots as claimed in claim 1, wherein the preparation method comprises the steps of:

s1, slicing rhizoma Acori Graminei, soaking in sodium chloride solution, performing steam explosion after soaking, and performing reflux extraction with ethanol solution to obtain rhizoma Acori Graminei extract;

s2, adding water into the frangipani leaves, and squeezing to obtain frangipani leaf juice;

s3, mixing the coconut bran powder and the frangipani leaf juice obtained in the step S2 in parts by weight, firstly adding 1/4-1/2 of compound microbial inoculum for fermentation at 20-28 ℃ for 12-24 hours, then adding the rhizoma acori graminei rhizome extract obtained in the step S1 and the balance of the compound microbial inoculum for secondary fermentation at 30-35 ℃ for 30-40 hours, and obtaining a compound fermentation material;

s4, mixing the potassium sulfate, the zinc sulfate and the diammonium phosphate according to the parts by weight, stirring at 2800-3200 rpm for 20-40 min, adding the composite fermentation material after uniform stirring, stirring at 1500-2300 rpm for 90-120 min, adding boric acid, humic acid, chitosan and sodium alginate, and mixing to obtain the rice seedling raising fertilizer.

5. The fertilizer for raising seedlings of rice as claimed in claim 4, wherein in step S1, the steam explosion pressure is 1-3 MPa and the pressure is maintained for 2-4 min.

6. The fertilizer for raising seedlings of rice as claimed in claim 5, wherein in step S1, the rhizome of Acorus calamus is taken, sliced, soaked in 3-5 w/w% sodium chloride solution for 1-2 h, steam exploded after soaking, and extracted under reflux with 70-90 v/v% ethanol solution for 2-4 times to obtain the extract of rhizome of Acorus gramineus.

7. The rice seedling raising fertilizer for promoting development of rice roots as claimed in claim 3, wherein in step S2, the weight of water added is 1-2 times of that of plumeria rubra leaves.

8. The rice seedling raising fertilizer for promoting rice root development as claimed in claim 3, wherein in step S3, the coconut husk powder is 100-200 mesh in size.

9. The method for using a fertilizer for raising rice seedlings to promote the development of rice roots as claimed in claims 1 to 8, wherein 0.3 to 0.5 jin is applied before sowing, and 0.8 to 1.2 jin is applied after sowing for 1 week.

10. The use method of the rice seedling raising fertilizer for promoting the development of the rice roots as claimed in claim 9, wherein the rice seedling raising fertilizer is applied after being mixed with 2-4 times of water by weight.

Technical Field

The invention relates to the technical field of rice fertilizers, in particular to a rice seedling raising fertilizer for promoting rice root development and a preparation and application method thereof.

Background

Seedling raising is an important link in the early stage of rice production, and the quality of seedlings directly influences the yield and the rice quality in the later stage of rice. The method has climate advantages in Hainan, three-harvest-one-year can be realized by planting rice, but Hainan typhoon weather is relatively more, and the method has great destructive power on rice seedlings if meeting the rice seedling raising period. Therefore, the improvement of the quality of the seedlings is very critical, the influence of severe weather can be better resisted, and the environmental adaptability of the seedlings is improved.

Disclosure of Invention

Therefore, the invention provides a rice seedling raising fertilizer for promoting the development of rice roots and a preparation and use method thereof, which can promote the development of seedling roots and has high seedling utilization rate.

The technical scheme of the invention is realized as follows: a rice seedling raising fertilizer for promoting rice root development comprises the following raw materials in parts by weight: 15-26 parts of potassium sulfate, 8-17 parts of zinc sulfate, 20-34 parts of diammonium phosphate, 6-15 parts of boric acid, 5-8 parts of humic acid, 8-17 parts of chitosan, 5-7 parts of sodium alginate, 2-5 parts of coconut powder, 3-7 parts of egg flower and leaf, 7-15 parts of rhizoma acori graminei rhizome extract and 2-4 parts of composite microbial agent, wherein the composite microbial agent is prepared from trichoderma harzianum, paenibacillus polymyxa and bacillus subtilis according to the mass ratio of 1: 0.2-0.4: 3-5.

Further, the fertilizer for raising rice seedlings comprises the following raw materials in parts by weight: 21 parts of potassium sulfate, 12 parts of zinc sulfate, 27 parts of diammonium phosphate, 9 parts of boric acid, 7 parts of humic acid, 12 parts of chitosan, 6 parts of sodium alginate, 3 parts of coconut husk powder, 5 parts of egg flower leaf powder, 12 parts of rhizoma acori graminei rhizome extract and 3 parts of composite microbial inoculum.

Further, the composite microbial agent is prepared from trichoderma harzianum, paenibacillus polymyxa and bacillus subtilis according to the weight ratio of 1: 0.3: 4, and (4).

The invention provides a rice seedling raising fertilizer for promoting the development of rice roots, which comprises the following steps:

s1, slicing rhizoma Acori Graminei, soaking in sodium chloride solution, performing steam explosion after soaking, and performing reflux extraction with ethanol solution to obtain rhizoma Acori Graminei extract;

s2, adding water into the frangipani leaves, and squeezing to obtain frangipani leaf juice;

s3, mixing the coconut bran powder and the frangipani leaf juice obtained in the step S2 in parts by weight, firstly adding 1/4-1/2 of compound microbial inoculum for fermentation at 20-28 ℃ for 12-24 hours, then adding the rhizoma acori graminei rhizome extract obtained in the step S1 and the balance of the compound microbial inoculum for secondary fermentation at 30-35 ℃ for 30-40 hours, and obtaining a compound fermentation material;

s4, mixing the potassium sulfate, the zinc sulfate and the diammonium phosphate according to the parts by weight, stirring at 2800-3200 rpm for 20-40 min, adding the composite fermentation material after uniform stirring, stirring at 1500-2300 rpm for 90-120 min, adding boric acid, humic acid, chitosan and sodium alginate, and mixing to obtain the rice seedling raising fertilizer.

Further, in step S1, the steam explosion pressure is 1-3 MPa, and the pressure is maintained for 2-4 min.

Further, in step S1, the rhizome of Acorus calamus is sliced and soaked in 3-5 w/w% sodium chloride solution for 1-2 h, steam explosion is performed after soaking, and reflux extraction is performed for 2-4 times by using 70-90 v/v% ethanol solution, so as to obtain the rhizome extract of Acorus calamus.

Further, in step S2, water is added in an amount of 1 to 2 times the weight of the plumeria rubra leaves.

Further, in step S3, the coconut bran powder is 100-200 meshes in size.

The invention provides a use method of a rice seedling raising fertilizer for promoting the development of rice roots, which is characterized in that 0.3-0.5 jin is applied before sowing, and 0.8-1.2 jin is applied after sowing for 1 week.

Further, the fertilizer for rice seedling cultivation is mixed with water 2-4 times of the weight of the fertilizer and then applied.

Compared with the prior art, the invention has the beneficial effects that: the rice seedling raising fertilizer disclosed by the invention is used for raising seedlings, the growth of the roots of the seedlings is promoted, the growth state of the roots of the seedlings is good, the growth of the seedlings is facilitated, the utilization rate of the seedlings is high, the environmental adaptability of the seedlings is improved, and the damage of severe weather such as typhoon and rainstorm to the seedlings can be reduced. Moreover, by adopting the preparation method of the rice seedling raising fertilizer, the effects of promoting the growth of the roots of the seedlings and the growth of the seedlings of the rice seedling are better exerted.

Detailed Description

In order to better understand the technical content of the invention, specific examples are provided below to further illustrate the invention.

The experimental methods used in the examples of the present invention are all conventional methods unless otherwise specified.

The materials, reagents and the like used in the examples of the present invention can be obtained commercially without specific description.