Hydroponic planting method for rapid growth of rice

Abstract

The invention relates to a hydroponic planting method for rapid growth of rice. The method comprises four processes of rice seed germination accelerating, seedling raising, rooting and jointing, booting and maturing. The method is characterized by comprising the following steps: (1) seed germination acceleration: preparing a nutrient solution containing calcium chloride, glucose and auxin, soaking rice seeds in the solution for 12 hours, then fishing out the seeds, flatly laying the seeds in a seedling raising tray, placing the seedling raising tray in an incubator at 25-28 DEG C, and culturing the seeds in a dark place for 48 hours; (2) seedling raising: putting the seeds subjected to germination acceleration into planting cotton, then putting the seeds into a planting frame, and culturing the seeds in a low-concentration nutrient solution for 14 days; (3) rooting: preparing a low-nitrogen, high-phosphorus and high-potassium nutrient solution to culture the rice seedlings for 14 days; and (4) jointing, booting and maturing: preparing a high-nitrogen, low-phosphorus and low-potassium nutrient solution containing a certain amount of sodium chloride to culture the rice for about 60 days, and harvesting. The method has the advantages of shortening the time from seedling culture to maturity of rice, being high in rice yield, reducing the frequency of replacing nutrient solution and the like.

Description

Technical Field

[0001] This invention relates to the field of crop cultivation technology, specifically to a hydroponic cultivation method for rapid rice growth. Background Technology

[0003] Soil-grown rice is greatly affected by the seasons. In the north, only one season of rice can generally be grown. It is necessary to develop two-season and multi-season planting models to increase rice yield.

[0004] For rice breeding, in order to accelerate breeding efficiency, it is necessary to go to Hainan for southern breeding and generation in winter; secondly, under soil cultivation conditions, it is easily affected by external organisms and contamination by foreign genes.

[0005] To study the stress resistance of rice, it is necessary to reduce the impact of environmental factors on rice growth. Soil-grown rice is affected by many factors and is not suitable for conducting research on rice stress resistance.

[0006] This invention addresses the above-mentioned problems by developing a hydroponic method to promote rapid rice growth. This method shortens the time from seedling to maturity, allowing for two rice crops to be grown in northern China. Considering protected cultivation and continuous sunlight, more than four crops can be grown per year. This method can be carried out under natural or protected conditions, reducing operating costs. Hydroponic rice technology significantly improves water resource utilization efficiency, helping to alleviate water shortages. Hydroponic rice provides a stable and sufficient nutrient supply, which is beneficial to the growth and development of rice roots, thereby increasing rice yield and quality. The relatively enclosed hydroponic environment reduces the occurrence of pests and diseases, further reducing pesticide residues in rice. Multiple crops of hydroponic rice can be grown per year, preventing genetic contamination and improving breeding efficiency. Summary of the Invention

[0007] This invention addresses the problems existing in known technologies by providing a hydroponic cultivation method for rapid rice growth. The method is characterized by comprising four stages: rice seed germination, seedling cultivation, rooting, and jointing and heading maturation, with different nutrient solutions used in each stage.

[0008] A hydroponic cultivation method for rapid rice growth, characterized in that the solution used for germination has the following composition: prepared at approximately 1000 parts by mass, comprising 1-10 parts calcium chloride, 0.1-1 parts glucose, 0.001-0.01 parts gibberellin or 6-benzylaminopurine, and 1000 parts water.

[0009] A rice rapid growth hydroponic planting method, characterized in that the nutrient solution used for seedling raising is prepared according to the following composition: 1L of water, wherein the concentration of each nutrient is 10-20 mg / L of ammonium nitrate, 5-10 mg / L of sodium dihydrogen phosphate dihydrate, 5-10 mg / L of potassium sulfate, 15-30 mg / L of calcium chloride, 40-80 mg / L of magnesium sulfate heptahydrate, 1.5-1.8 mg / L of manganese chloride dihydrate, 0.05-0.1 mg / L of ammonium molybdate tetrahydrate, 0.6-1.2 mg / L of boric acid, 0.02-0.05 mg / L of zinc sulfate heptahydrate, 0.02-0.04 mg / L of copper sulfate pentahydrate, 10-20 mg / L of iron disodium ethylenediaminetetraacetate, 10-50 mg / L of glucose, and 1L of water.

[0010] A rice rapid growth hydroponic planting method, characterized in that the nutrient solution used for rooting is prepared according to the following composition: 1L of water, wherein the concentration of each nutrient is 5-10 mg / L of ammonium nitrate, 10-20 mg / L of sodium dihydrogen phosphate dihydrate, 10-20 mg / L of potassium sulfate, 30-60 mg / L of calcium chloride, 80-160 mg / L of magnesium sulfate heptahydrate, 1.5-1.8 mg / L of manganese chloride dihydrate, 0.05-0.1 mg / L of ammonium molybdate tetrahydrate, 0.6-1.2 mg / L of boric acid, 0.02-0.05 mg / L of zinc sulfate heptahydrate, 0.02-0.04 mg / L of copper sulfate pentahydrate, 10-20 mg / L of iron disodium ethylenediaminetetraacetate, 10-50 mg / L of glucose, and 1L of water.

[0011] A rice rapid growth hydroponic planting method, characterized in that the nutrient solution used for jointing and heading is prepared according to the following composition: 1L of water, wherein the concentration of each nutrient is 100-200 mg / L of ammonium nitrate, 40-80 mg / L of sodium dihydrogen phosphate dihydrate, 20-40 mg / L of potassium sulfate, 60-120 mg / L of calcium chloride, 180-320 mg / L of magnesium sulfate heptahydrate, 1.5-1.8 mg / L of manganese chloride dihydrate, 0.05-0.1 mg / L of ammonium molybdate tetrahydrate, 0.6-1.2 mg / L of boric acid, 0.02-0.05 mg / L of zinc sulfate heptahydrate, 0.02-0.04 mg / L of copper sulfate pentahydrate, 10-20 mg / L of iron disodium ethylenediaminetetraacetate, 50-100 mg / L of citric acid, 0.1-0.5 g / L of sodium chloride, and 1L of water.

[0012] A rice rapid growth hydroponic planting method, characterized in that it comprises the following steps: ① seed germination: a solution is configured according to

[0008] , rice seeds are soaked in the solution for 12 hours, then the seeds are taken out and laid on a seedling tray, the surface is covered with black water-absorbing paper, and placed in a 25-28°C incubator for 48 hours of light-free culture; ② seedling culture: the germinated seeds are placed in planting cotton, then placed in a planting frame, and cultured using the nutrient solution of

[0009] , and placed in an environment with a temperature of 20-35°C and a light intensity of 10000-20000 lux for 14 days of culture; ③ rooting: the rice seedlings are cultured using the nutrient solution of

[0010] , and placed in an environment with a temperature of 20-35°C and a light intensity of 10000-30000 lux for 14 days of culture; the rice rooting is promoted; ④ jointing and earing maturity: the rice is cultured using the nutrient solution of

[0011] , the nutrient solution is supplemented every 15 days, and placed in an environment with a temperature of 20-35°C and a light intensity of 20000-50000 lux for about 60 days of culture, and then harvested. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 Tianjin 124 rice earing hydroponic growth.

[0014] Figure 2 Fan 2 rice jointing hydroponic growth. DETAILED DESCRIPTION

[0015] Implementation Case 1: Hydroponic planting of Tianjin 124 rice variety

[0016] The solution for rice germination is configured as follows: 2g of calcium chloride, 0.2g of glucose, and 0.002g of gibberellin are added to 1L tap water. The rice seeds are soaked in the solution for 12 hours, then taken out and laid on a seedling tray, the surface is covered with black water-absorbing paper, and placed in a 25-28°C incubator for 48 hours of light-free culture;

[0017] The rice seedling nutrient solution is configured as follows: 15mg of ammonium nitrate, 5mg of sodium dihydrogen phosphate dihydrate, 5mg of potassium sulfate, 15mg of calcium chloride, 40mg of magnesium sulfate heptahydrate, 1.5mg of manganese chloride dihydrate, 0.05mg of ammonium molybdate tetrahydrate, 0.6mg of boric acid, 0.02mg of zinc sulfate heptahydrate, 0.02mg of copper sulfate pentahydrate, 10mg of iron disodium ethylenediaminetetraacetate, and 20mg of glucose are added to 1L tap water, and sulfuric acid is used to adjust the pH value to about 6.0. The germinated seeds are placed in planting cotton, then placed in a planting frame, the planting frame is placed in a 48-hole hydroponic box with a length×width×height of 0.39m×0.28m×0.14m, and cultured using the above nutrient solution, and placed in an environment with a temperature of 20-35°C and a light intensity of 10000-20000 lux for 14 days of culture.

[0018] Configuration rooting nutrient solution: in 1L tap water, add 10mg ammonium nitrate, 40mg sodium dihydrogen phosphate dihydrate, 20mg potassium sulfate, 60mg calcium chloride, 160mg magnesium sulfate heptahydrate, 1.8mg manganese chloride dihydrate, 0.1mg ammonium molybdate tetrahydrate, 1.2mg boric acid, 0.05mg zinc sulfate heptahydrate, 0.04mg copper sulfate pentahydrate, 20mg iron disodium ethylenediaminetetraacetate, 25mg glucose, adjust pH to about 6.0 with sulfuric acid. Using the nutrient solution to culture rice seedlings, placed in a temperature of 20℃-35℃ and light intensity of 10000-30000lux environment for 14 days; promote rice rooting.

[0019] Configuration jointing and booting mature nutrient solution: in 1L tap water, add 200mg ammonium nitrate, 80mg sodium dihydrogen phosphate dihydrate, 40mg potassium sulfate, 120mg calcium chloride, 320mg magnesium sulfate heptahydrate, 1.8mg manganese chloride dihydrate, 0.1mg ammonium molybdate tetrahydrate, 1.2mg boric acid, 0.05mg zinc sulfate heptahydrate, 0.04mg copper sulfate pentahydrate, 20mg iron disodium ethylenediaminetetraacetate, 100mg citric acid, 0.5g sodium chloride. Using the nutrient solution to culture rice, every 15 days add once nutrient solution, placed in a temperature of 20℃-35℃ and light intensity of 20000-50000lux environment for about 60 days, can be harvested. Its culture process in rice booting stage growth as Figure 1

[0020] After the rice matures, harvest the rice grains, dry, each pot can harvest about 120g of grains.

[0021] Case 2: water 2 rice varieties hydroponic planting

[0022] Configuration solution for rice germination: in 1L tap water, add 2g calcium chloride, 0.2g glucose, 0.002g gibberellin. Soak the rice seeds in the solution for 12 hours, then take out the seeds and lay them on the seedling tray, cover the surface with black absorbent paper, place in a 25℃-28℃ incubator, cultivate in the dark for 48 hours;

[0023] ​Preparation of the rice seedling nutrient solution: 15 mg of ammonium nitrate, 5 mg of sodium dihydrogen phosphate dihydrate, 5 mg of potassium sulfate, 15 mg of calcium chloride, 40 mg of magnesium sulfate heptahydrate, 1.5 mg of manganese chloride dihydrate, 0.05 mg of ammonium molybdate tetrahydrate, 0.6 mg of boric acid, 0.02 mg of zinc sulfate heptahydrate, 0.02 mg of copper sulfate pentahydrate, 10 mg of iron disodium ethylenediaminetetraacetate, and 20 mg of glucose are added to 1 L of tap water, and the pH is adjusted to about 6.0 using sulfuric acid. The seeds after the seed germination accelerating are put into the planting cotton, and then into the planting frame, and the planting frame is put into the 48-hole water culture box with a length x width x height of 0.39 m x 0.28 m x 0.14 m, and the above nutrient solution is used for culture, and the culture is placed in an environment with a temperature of 20-35°C and an illumination intensity of 10,000-20,000 lux for 14 days.

[0024] Preparation of the rice seedling nutrient solution: 15 mg of ammonium nitrate, 5 mg of sodium dihydrogen phosphate dihydrate, 5 mg of potassium sulfate, 15 mg of calcium chloride, 40 mg of magnesium sulfate heptahydrate, 1.5 mg of manganese chloride dihydrate, 0.05 mg of ammonium molybdate tetrahydrate, 0.6 mg of boric acid, 0.02 mg of zinc sulfate heptahydrate, 0.02 mg of copper sulfate pentahydrate, 10 mg of iron disodium ethylenediaminetetraacetate, and 20 mg of glucose are added to 1 L of tap water, and the pH is adjusted to about 6.0 using sulfuric acid. The seeds after the seed germination accelerating are put into the planting cotton, and then into the planting frame, and the planting frame is put into the 48-hole water culture box with a length x width x height of 0.39 m x 0.28 m x 0.14 m, and the above nutrient solution is used for culture, and the culture is placed in an environment with a temperature of 20-35°C and an illumination intensity of 10,000-20,000 lux for 14 days.

[0025] Preparation of the rice seedling nutrient solution: 15 mg of ammonium nitrate, 5 mg of sodium dihydrogen phosphate dihydrate, 5 mg of potassium sulfate, 15 mg of calcium chloride, 40 mg of magnesium sulfate heptahydrate, 1.5 mg of manganese chloride dihydrate, 0.05 mg of ammonium molybdate tetrahydrate, 0.6 mg of boric acid, 0.02 mg of zinc sulfate heptahydrate, 0.02 mg of copper sulfate pentahydrate, 10 mg of iron disodium ethylenediaminetetraacetate, and 20 mg of glucose are added to 1 L of tap water, and the pH is adjusted to about 6.0 using sulfuric acid. The seeds after the seed germination accelerating are put into the planting cotton, and then into the planting frame, and the planting frame is put into the 48-hole water culture box with a length x width x height of 0.39 m x 0.28 m x 0.14 m, and the above nutrient solution is used for culture, and the culture is placed in an environment with a temperature of 20-35°C and an illumination intensity of 10,000-20,000 lux for 14 days. Figure 2

[0026] After the rice is mature, the rice grains are harvested and dried, and about 110 g of grains can be harvested per pot. The above examples only illustrate the principles of the present application and its effects, and are not used to limit the present application. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the art without departing from the spirit and technical scope of the present application should be covered by the claims of the present application.​

Claims

1. A hydroponic cultivation method for rapid rice growth, characterized in that, This method includes four stages: rice seed germination, seedling cultivation, rooting, and jointing and heading maturation, with different nutrient solutions used in each stage.

2. The hydroponic cultivation method for rapid rice growth as described in claim 1, characterized in that, The solution used for germination is composed as follows: prepared at approximately 1000 parts by mass, including 1-10 parts calcium chloride, 0.1-1 parts glucose, 0.001-0.01 parts gibberellin or 6-benzylaminopurine, and 1000 parts water.

3. The hydroponic cultivation method for rapid rice growth as described in claim 1, characterized in that, The nutrient solution used for seedling cultivation is composed as follows: prepared in 1L volume, with the following concentrations of various nutrients: 10-20 mg / L ammonium nitrate, 5-10 mg / L sodium dihydrogen phosphate dihydrate, 5-10 mg / L potassium sulfate, 15-30 mg / L calcium chloride, 40-80 mg / L magnesium sulfate heptahydrate, 1.5-1.8 mg / L manganese chloride dihydrate, 0.05-0.1 mg / L ammonium molybdate tetrahydrate, 0.6-1.2 mg / L boric acid, 0.02-0.05 mg / L zinc sulfate heptahydrate, 0.02-0.04 mg / L copper sulfate pentahydrate, 10-20 mg / L ferric disodium ethylenediaminetetraacetate, 10-50 mg / L glucose, and 1L water.

4. The hydroponic cultivation method for rapid rice growth as described in claim 1, characterized in that, The nutrient solution used for rooting is composed as follows: prepared in 1L volume, with the following concentrations of various nutrients: 5-10 mg / L ammonium nitrate, 10-20 mg / L sodium dihydrogen phosphate dihydrate, 10-20 mg / L potassium sulfate, 30-60 mg / L calcium chloride, 80-160 mg / L magnesium sulfate heptahydrate, 1.5-1.8 mg / L manganese chloride dihydrate, 0.05-0.1 mg / L ammonium molybdate tetrahydrate, 0.6-1.2 mg / L boric acid, 0.02-0.05 mg / L zinc sulfate heptahydrate, 0.02-0.04 mg / L copper sulfate pentahydrate, 10-20 mg / L ferric disodium ethylenediaminetetraacetate, 10-50 mg / L glucose, and 1L water.

5. The hydroponic cultivation method for rapid rice growth as described in claim 1, characterized in that, The nutrient solution used for jointing, booting, and maturation is composed as follows: prepared in 1L volume, with the following concentrations of various nutrients: 100-200 mg / L ammonium nitrate, 40-80 mg / L sodium dihydrogen phosphate dihydrate, 20-40 mg / L potassium sulfate, 60-120 mg / L calcium chloride, 180-320 mg / L magnesium sulfate heptahydrate, 1.5-1.8 mg / L manganese chloride dihydrate, 0.05-0.1 mg / L ammonium molybdate tetrahydrate, 0.6-1.2 mg / L boric acid, 0.02-0.05 mg / L zinc sulfate heptahydrate, 0.02-0.04 mg / L copper sulfate pentahydrate, 10-20 mg / L ferric disodium ethylenediaminetetraacetate, 50-100 mg / L citric acid, 0.1-0.5 g / L sodium chloride, and 1L water.

6. A method for rapid hydroponic cultivation of rice, characterized in that, The pH of the solutions in claims 3, 4, and 5 is between 5.6 and 6.5, and is adjusted using sulfuric acid and nitric acid.

7. A hydroponic cultivation method for rapid rice growth, characterized in that, The process includes the following steps: ① Seed germination: Prepare a solution according to claim 2, soak rice seeds in the solution for 12 hours, then remove the seeds and spread them evenly in a seedling tray, cover the surface with black absorbent paper, and place them in an incubator at 25℃-28℃ for 48 hours in the dark; ② Seedling raising: Place the germinated seeds into transplanting cotton, then place them in a transplanting frame, and cultivate them using the nutrient solution of claim 3, at a temperature of 20℃-35℃ and a light intensity of 10000-20000 l. ③ Rooting: Rice seedlings are cultured in the nutrient solution of claim 4 for 14 days in an environment with a temperature of 20℃-35℃ and a light intensity of 10000-30000 lux to promote rooting; ④ Jointing, booting and maturation: Rice is cultured in the nutrient solution of claim 5, with nutrient solution added every 15 days, and cultured in an environment with a temperature of 20℃-35℃ and a light intensity of 20000-50000 lux for about 60 days before harvest.

Images