CN110741893A - Planting method of rice containing high essential amino acid - Google Patents
Planting method of rice containing high essential amino acid Download PDFInfo
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
- A01G22/20—Cereals
- A01G22/22—Rice
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
- A01B79/02—Methods for working soil combined with other agricultural processing, e.g. fertilising, planting
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
- A01C1/08—Immunising seed
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C21/00—Methods of fertilising, sowing or planting
- A01C21/005—Following a specific plan, e.g. pattern
Abstract
The invention belongs to the technical field of rice planting, and particularly relates to a planting method of rice containing high essential amino acid. The invention comprises the following steps: (1) arranging the rice seedling bed; (2) seed treatment and sowing; (3) field management; (4) transplanting seedlings; (5) applying a crop nutrient modulator. According to the invention, by reasonably designing the cultivation steps of the whole growth period of the rice and spraying the crop nutrition regulating agent with specific components and proportion once in the booting period, the terminal heading period and the milk stage of the rice respectively to regulate the sugar-nitrogen ratio of rice grains, the content of essential amino acid in the rice can be obviously improved. Meanwhile, the fertilizing method and the fertilizing amount of the rice, particularly the application of nitrogen fertilizer, are accurately controlled, the application amount of the nitrogen fertilizer in the early stage is reduced, the nitrogen using amount in the middle stage is controlled, the nitrogen using proportion in the later stage is increased, and proper seedling raising time and transplanting time are combined, so that the absorption, transportation, accumulation and reutilization of nitrogen by the rice are improved, the content of various essential amino acids in the rice is further improved, and the nutritional value of the rice is improved.
Description
Technical Field
The invention belongs to the technical field of rice planting, and particularly relates to a planting method of rice containing high essential amino acid.
Background
Rice is one of the most important food crops in the world, and about 35-50% of people worldwide use rice as staple food, which provides about 40% of protein and 20% of energy for human beings. In the past rice research, yield has long been the main route. With the development of society, people pay attention to not only yield, but also the quality requirement is continuously improved.
The quality characteristics of the rice are comprehensively evaluated by 12 physical and chemical indexes and taste quality in 4 aspects of rice milling quality, appearance quality, cooking quality and nutrition quality. However, the protein content, amino acid composition and essential amino acid content in rice are key factors for determining the quality of rice, and the most important indexes are the proportion of amino acids in proteins and the content of essential amino acids. Essential amino acids are essential in the human body, but the body cannot synthesize them, and they must be taken in from food. According to research, although the content and the composition of amino acid in rice are more balanced than those of other cereal crops, the content of lysine is still not high, and the requirement of people on food nutrition cannot be met, so that the content of essential amino acid in rice is increased, and the nutritional quality of rice is very necessary to be improved.
The waste liquid of the saccharifying enzyme is a waste liquid generated in the production process of the saccharifying enzyme, and mainly comprises a trace of saccharifying enzyme and partial reducing sugar, and in addition, a trace of amino acid, inorganic salt and the like metabolized by fermentation. Because the content of various components in the saccharifying enzyme waste liquid is low, the recycling value is not high, and the waste liquid is directly discharged by part of small and medium-sized enterprises, so that the surrounding environment is polluted; some large enterprises treat the waste liquid according to the national sewage discharge standard, which results in a great increase of production cost.
Disclosure of Invention
Aiming at the technical problems, the invention aims to provide a method for planting rice containing high essential amino acid, which can obviously improve the content of eight essential amino acids such as lysine, histidine, phenylalanine, methionine and the like in the rice and improve the nutritional value of the rice.
In order to achieve the purpose, the invention adopts the following technical scheme:
a planting method of rice containing high essential amino acid comprises the following steps:
(1) arranging a seedling bed: selecting a seedling bed with flat terrain and fertile soil, removing weeds and broken stones on the surface of the seedling bed, deeply ploughing the soil and applying base fertilizer;
(2) seed treatment and sowing: soaking rice seeds for sterilization, watering the seedling bed thoroughly before sowing, and raising seedlings;
(3) field management: applying 50-60kg of vegetable cake fertilizer as base fertilizer to each mu of field before transplanting seedlings, and controlling the total fertilizer application amount to be 20-30kg of pure N and P in the whole growth period of rice2O55-10kg，K2O 5-10kg；
(4) Transplanting seedlings: transplanting the seedlings to the field when the seedlings are 25-30d old;
(5) applying crop nutrient controlling agent: spraying a crop nutrition regulating agent once in each of the booting stage, the final stage of heading and the milk stage of the rice, wherein the application amount of each time is 60-70 kg/mu, and the crop nutrition regulating agent comprises 4-20% of saccharifying enzyme waste liquid and 0.1-0.6% of monopotassium phosphate by mass.
Further, the depth of deep ploughing in the step (1) is 20-25cm, and the base fertilizer is decomposed farmyard manure of 250-500 kg/mu.
Further, in the step (2), 0.5% of strong chlorine 200-400 times of liquid is adopted for seed soaking and disinfection, and the seed soaking time is 10-12 h.
Further, the seeding rate of the rice seedling bed in the step (2) is 15-25 kg/mu.
Further, in the step (3), the nitrogen fertilizer is urea with a nitrogen content of 46%, the phosphate fertilizer is calcium superphosphate with a phosphorus content of 18%, and the potassium fertilizer is potassium chloride with a potassium content of 60%.
Further, the nitrogen fertilizer in the step (3) is prepared from the following base fertilizers in percentage by mass: and (3) tillering fertilizer: ear fertilization: the granular fertilizer is applied according to the ratio of 3-4:2-3:2-3: 1-1.5; the phosphate fertilizer is used as a base fertilizer for one-time application; the potash fertilizer is applied according to the mass percentage of 55-65% of base fertilizer, 20-25% of tillering fertilizer and 15-25% of booting fertilizer.
Preferably, the nitrogen fertilizer in the step (3) is prepared from the following base fertilizers in percentage by mass: and (3) tillering fertilizer: ear fertilization: the granular fertilizer is applied according to the ratio of 3.5:2.5:2.5: 1.5.
Preferably, the potash fertilizer in the step (3) is applied according to the proportion of 60% of base fertilizer, 20% of tillering fertilizer and 20% of booting fertilizer by mass percentage.
Further, keeping the depth of the surface water of the compartment to be 1-2cm after transplanting in the step (4); and (5) performing field drying treatment at the tillering peak period of 15-20 days after transplanting.
Preferably, the crop nutrition regulator in the step (6) comprises 12 mass percent of saccharifying enzyme waste liquid and 0.3 mass percent of monopotassium phosphate.
Further, the preparation method of the crop nutrition regulator comprises the following steps: and weighing the diastase waste liquid and the potassium dihydrogen phosphate with corresponding mass, fixing the volume to the required application amount by using clear water, and uniformly stirring to obtain the diastase-containing solution.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, by reasonably designing the cultivation steps of the whole growth period of the rice and spraying the crop nutrition regulating agent with specific components and proportion once in the booting period, the terminal heading period and the milk stage of the rice respectively, the sugar nitrogen ratio of rice grains can be regulated and controlled, the accumulation of protein is promoted, the content of essential amino acid in the rice is further obviously improved, and the comprehensive utilization of the diastase waste liquid can be realized. Meanwhile, the fertilizing method and the fertilizing amount of the rice, particularly the application of nitrogen fertilizer, are accurately controlled, the application amount of the nitrogen fertilizer in the early stage is reduced, the nitrogen using amount in the middle stage is controlled, the nitrogen using proportion in the later stage is increased, and proper seedling raising time and transplanting time are combined, so that the absorption, transportation, accumulation and reutilization of nitrogen by the rice are improved, the content of various essential amino acids in the rice is further improved, and the nutritional value of the rice is improved.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The waste liquid of the saccharifying enzyme used in the following examples was collected from Hainan New Hongying bioengineering, Inc., and other materials were purchased from conventional sources.
The saccharifying enzyme waste liquid is sent to modern analysis testing center of the university of China and south for detection, and the analysis results are shown in the table.
TABLE 1 analysis result of saccharifying enzyme waste liquid (mg/100g)
Example 1
A planting method of rice containing high essential amino acid comprises the following steps:
(1) arranging a seedling bed: selecting a seedling bed with flat terrain and fertile soil, removing weeds and broken stones on the surface of the seedling bed, deeply ploughing the soil by 20-25cm, and applying 250kg of decomposed farmyard manure to each mu of the seedling bed;
(2) seed treatment and sowing: soaking the seeds in 200 times of 0.5 percent strong chlorine solution for 10 hours for disinfection; watering the seedling bed thoroughly before sowing, wherein the sowing quantity is 15 kg/mu, and raising seedlings;
(3) field management: applying 50kg of vegetable cake fertilizer as base fertilizer to each mu of field before transplanting seedlings, and controlling the total fertilizer application amount to be 30kg of pure N and P in the whole growth period of rice2O510kg，K2O10 kg; the nitrogen fertilizer is urea with 46 percent of nitrogen content, the phosphate fertilizer is calcium superphosphate with 18 percent of phosphorus content, and the potassium fertilizer is potassium chloride with 60 percent of potassium content; the nitrogen fertilizer comprises the following base fertilizers in percentage by mass: and (3) tillering fertilizer: ear fertilization: applying the granular fertilizer in a ratio of 3:3:3: 1; the phosphate fertilizer is used as a base fertilizer for one-time application; the potash fertilizer is applied according to the mass percentage of 65 percent of base fertilizer, 20 percent of tillering fertilizer and 15 percent of booting fertilizer;
(4) transplanting seedlings: transplanting the seedlings to a field after the seedling ages are 25-30d, and keeping the depth of the surface water of the compartment to be 1-2cm after transplanting; sun-drying the field 15-20d after transplanting in tillering peak period;
(5) applying crop nutrient controlling agent: and spraying a crop nutrition regulating agent once in each of the booting stage, the final stage of heading and the milk stage of the rice, wherein the application amount of each time is 60 kg/mu, and the crop nutrition regulating agent comprises 4 mass percent of saccharifying enzyme waste liquid and 0.2 mass percent of monopotassium phosphate.
Taking example 1 as an example, the preparation method of the crop nutrition regulator comprises the following steps: weighing 2.4kg of diastase waste liquid and 120g of potassium dihydrogen phosphate, adding clear water to constant volume of 60kg, and stirring well to obtain the final product.
Example 2
A planting method of rice containing high essential amino acid comprises the following steps:
(1) arranging a seedling bed: selecting a seedling bed with flat terrain and fertile soil, removing weeds and broken stones on the surface of the seedling bed, deeply ploughing the soil by 20-25cm, and applying 300kg of thoroughly decomposed farmyard manure to each mu of the seedling bed;
(2) seed treatment and sowing: soaking the seeds in 400 times of 0.5 percent strong chlorine solution for 12 hours for disinfection; watering the seedling bed thoroughly before sowing, wherein the sowing quantity is 20 kg/mu, and raising seedlings;
(3) field management: applying 55kg of vegetable cake fertilizer as base fertilizer to each mu of field before transplanting seedlings, and controlling the total fertilizer application amount to be pure N25 kg and P in the whole growth period of rice2O55kg，K2O5 kg; the nitrogen fertilizer is urea with 46 percent of nitrogen content, the phosphate fertilizer is calcium superphosphate with 18 percent of phosphorus content, and the potassium fertilizer is potassium chloride with 60 percent of potassium content; the nitrogen fertilizer comprises the following base fertilizers in percentage by mass: and (3) tillering fertilizer: ear fertilization: applying the granular fertilizer in a ratio of 4:2:3: 1; the phosphate fertilizer is used as a base fertilizer for one-time application; the potash fertilizer is applied according to the mass percentage of 55 percent of base fertilizer, 25 percent of tillering fertilizer and 20 percent of booting fertilizer;
(4) transplanting seedlings: transplanting the seedlings to a field after the seedling ages are 25-30d, and keeping the depth of the surface water of the compartment to be 1-2cm after transplanting; sun-drying the field 15-20d after transplanting in tillering peak period;
(5) applying crop nutrient controlling agent: and spraying a crop nutrition regulating agent once in each of the booting stage, the final stage of heading and the milk stage of the rice, wherein the application amount of each time is 65 kg/mu, and the crop nutrition regulating agent comprises 16% of saccharifying enzyme waste liquid and 0.6% of monopotassium phosphate in mass percentage.
Example 3
A planting method of rice containing high essential amino acid comprises the following steps:
(1) arranging a seedling bed: selecting a seedling bed with flat terrain and fertile soil, removing weeds and broken stones on the surface of the seedling bed, deeply ploughing the soil by 20-25cm, and applying 350kg of thoroughly decomposed farmyard manure to each mu of the seedling bed;
(2) seed treatment and sowing: soaking the seeds in 300 times of 0.5 percent strong chlorine solution for 10 hours for disinfection; watering the seedling bed thoroughly before sowing, wherein the sowing quantity is 25 kg/mu, and raising seedlings;
(3) field management: applying 60kg of vegetable cake fertilizer as base fertilizer to each mu of field before transplanting seedlings, and controlling the total fertilizer application amount to be 20kg of pure N and P in the whole growth period of rice2O510kg，K2O10 kg; the nitrogen fertilizer is urea with 46 percent of nitrogen content, the phosphate fertilizer is calcium superphosphate with 18 percent of phosphorus content, and the potassium fertilizer is potassium chloride with 60 percent of potassium content; the nitrogen fertilizer comprises the following base fertilizers in percentage by mass: and (3) tillering fertilizer: ear fertilization: applying the granular fertilizer in a ratio of 4:3:2: 1; the phosphate fertilizer is used as a base fertilizer for one-time application; the potash fertilizer is applied according to the mass percentage of 55 percent of base fertilizer, 25 percent of tillering fertilizer and 20 percent of booting fertilizer;
(4) transplanting seedlings: transplanting the seedlings to a field after the seedling ages are 25-30d, and keeping the depth of the surface water of the compartment to be 1-2cm after transplanting; sun-drying the field 15-20d after transplanting in tillering peak period;
(5) applying crop nutrient controlling agent: and spraying a crop nutrition regulating agent once in each of the booting stage, the final stage of heading and the milk stage of the rice, wherein the application amount of each time is 70 kg/mu, and the crop nutrition regulating agent comprises 8 mass percent of saccharifying enzyme waste liquid and 0.2 mass percent of monopotassium phosphate.
Example 4
A planting method of rice containing high essential amino acid comprises the following steps:
(1) arranging a seedling bed: selecting a seedling bed with flat terrain and fertile soil, removing weeds and broken stones on the surface of the seedling bed, deeply ploughing the soil by 20-25cm, and applying 400kg of thoroughly decomposed farmyard manure to each mu of the seedling bed;
(2) seed treatment and sowing: soaking the seeds in 200 times of 0.5% strong chlorine solution for 12h for disinfection; watering the seedling bed thoroughly before sowing, wherein the sowing quantity is 15 kg/mu, and raising seedlings;
(3) field management: applying 50kg of vegetable cake fertilizer as base fertilizer to each mu of field before transplanting seedlings, and controlling the total fertilizer application amount to be 30kg of pure N and P in the whole growth period of rice2O510kg，K2O10 kg; the nitrogen fertilizer is urea with 46 percent of nitrogen content, the phosphate fertilizer is calcium superphosphate with 18 percent of phosphorus content, and the potassium fertilizer is potassium chloride with 60 percent of potassium content; the nitrogen fertilizer comprises the following base fertilizers in percentage by mass: and (3) tillering fertilizer: ear fertilization: the granular fertilizer is applied according to the ratio of 3.5:2.5:2.5: 1.5; the phosphate fertilizer is used as a base fertilizer for one-time application; the potash fertilizer is applied according to the mass percentage of 60 percent of base fertilizer, 20 percent of tillering fertilizer and 20 percent of booting fertilizer;
(4) transplanting seedlings: transplanting the seedlings to a field after the seedling ages are 25-30d, and keeping the depth of the surface water of the compartment to be 1-2cm after transplanting; sun-drying the field 15-20d after transplanting in tillering peak period;
(5) applying crop nutrient controlling agent: and spraying a crop nutrition regulating agent once in each of the booting stage, the final stage of heading and the milk stage of the rice, wherein the application amount of each time is 65 kg/mu, and the crop nutrition regulating agent comprises 12 mass percent of saccharifying enzyme waste liquid and 0.3 mass percent of monopotassium phosphate.
Example 5
A planting method of rice containing high essential amino acid comprises the following steps:
(1) arranging a seedling bed: selecting a seedling bed with flat terrain and fertile soil, removing weeds and broken stones on the surface of the seedling bed, deeply ploughing the soil by 20-25cm, and applying 450kg of decomposed farmyard manure to each mu of the seedling bed;
(2) seed treatment and sowing: soaking the seeds in 300 times of 0.5 percent strong chlorine solution for 12 hours for disinfection; watering the seedling bed thoroughly before sowing, wherein the sowing quantity is 20 kg/mu, and raising seedlings;
(3) field management: applying 55kg of vegetable cake fertilizer as base fertilizer to each mu of field before transplanting seedlings, and controlling the total fertilizer application amount to be 20kg of pure N and P in the whole growth period of rice2O55kg，K2O10 kg; the nitrogen fertilizer is urea with 46 percent of nitrogen content, the phosphate fertilizer is calcium superphosphate with 18 percent of phosphorus content, and the potassium fertilizer is potassium chloride with 60 percent of potassium content; the nitrogen fertilizer comprises the following base fertilizers in percentage by mass: and (3) tillering fertilizer: ear fertilization: the granular fertilizer is applied according to the ratio of 3:2.5:3: 1.5; the phosphate fertilizer is used as a base fertilizer for one-time application; the potassium fertilizer is added according to the massThe percentage of base fertilizer is 60%, the percentage of tillering fertilizer is 25%, and the percentage of booting fertilizer is 15%;
(4) transplanting seedlings: transplanting the seedlings to a field after the seedling ages are 25-30d, and keeping the depth of the surface water of the compartment to be 1-2cm after transplanting; sun-drying the field 15-20d after transplanting in tillering peak period;
(5) applying crop nutrient controlling agent: and spraying a crop nutrition regulating agent once in each of the booting stage, the final stage of heading and the milk stage of the rice, wherein the application amount of each time is 60 kg/mu, and the crop nutrition regulating agent comprises 16% of saccharifying enzyme waste liquid and 0.4% of monopotassium phosphate in mass percentage.
Example 6
A planting method of rice containing high essential amino acid comprises the following steps:
(1) arranging a seedling bed: selecting a seedling bed with flat terrain and fertile soil, removing weeds and broken stones on the surface of the seedling bed, deeply ploughing the soil by 20-25cm, and applying 500kg of thoroughly decomposed farmyard manure to each mu of the seedling bed;
(2) seed treatment and sowing: soaking the seeds in 400 times of 0.5 percent strong chlorine solution for 10 hours for disinfection; watering the seedling bed thoroughly before sowing, wherein the sowing quantity is 25 kg/mu, and raising seedlings;
(3) field management: applying 60kg of vegetable cake fertilizer as base fertilizer to each mu of field before transplanting seedlings, and controlling the total fertilizer application amount to be pure N25 kg and P in the whole growth period of rice2O510kg，K2O5 kg; the nitrogen fertilizer is urea with 46 percent of nitrogen content, the phosphate fertilizer is calcium superphosphate with 18 percent of phosphorus content, and the potassium fertilizer is potassium chloride with 60 percent of potassium content; the nitrogen fertilizer comprises the following base fertilizers in percentage by mass: and (3) tillering fertilizer: ear fertilization: the granular fertilizer is applied in a ratio of 4:2:2.5: 1.5; the phosphate fertilizer is used as a base fertilizer for one-time application; the potash fertilizer is applied according to the mass percentage of 65 percent of base fertilizer, 20 percent of tillering fertilizer and 15 percent of booting fertilizer;
(4) transplanting seedlings: transplanting the seedlings to a field after the seedling ages are 25-30d, and keeping the depth of the surface water of the compartment to be 1-2cm after transplanting; sun-drying the field 15-20d after transplanting in tillering peak period;
(5) applying crop nutrient controlling agent: and spraying a crop nutrition regulating agent once in each of the booting stage, the final stage of heading and the milk stage of the rice, wherein the application amount of each time is 70 kg/mu, and the crop nutrition regulating agent comprises 20 mass percent of saccharifying enzyme waste liquid and 0.1 mass percent of monopotassium phosphate.
Comparative example 1 is early indica, comparative example 2 is late indica, and comparative example 3 is japonica.
Experimental example 1
The test rice variety: xiangzai long-shaped No. 45
The experimental site: township of Changsha city
Rice plants were grown according to the method of examples 1-6, 3 replicates per treatment, and the area per plot was 66.7m2. After the rice is mature, each cell is sampled in a parallel jumping mode, 10 roots are taken at each point, 3 roots are taken in parallel, and the total number of the roots is 30. Threshing, drying in the sun, removing impurities, and measuring the amino acid content. The amino acid content of the rice in comparative examples 1 to 3 was extracted from the Chinese food ingredient Table (2 nd edition). The measurement results are shown in the following table.
TABLE 2 comparison of amino acid content (mg/100g) of different rice
Note: represents an essential amino acid; e represents the essential amino acid content; n represents the content of non-essential amino acids; t represents the total content of amino acids; E/N represents the ratio of essential amino acid to non-essential amino acid content; E/T% represents the percentage of essential amino acids in the total content of amino acids.
The pretreatment of tryptophan detection is different from other amino acids, so that the tryptophan detection is inconvenient for machine inspection, and histidine is replaced by histidine, and the histidine belongs to essential amino acids of children, namely semi-essential amino acids; cystine can be converted to methionine; thus the eight essential amino acids actually include threonine, cystine, valine, methionine, isoleucine, leucine, phenylalanine, lysine and histidine.
According to the ideal protein conditions proposed by FAO/WHO, the value of each essential amino acid/total amino acid (E/T) constituting the protein should be about 40% of the total amount, and the value of essential amino acid/non-essential amino acid (E/N) should be 0.6 or more. As can be seen from the data in table 1, compared with the early indica type rice, the late indica type rice and the polished round-grained rice of the comparative examples 1 to 3, the rice harvested by the planting method of the invention in the examples 1 to 6 has significantly improved total content of eight essential amino acids, significant advantages in total content of the essential amino acids and total content of the amino acids, average E/N value of 1.37 and average E/T% value of 57.795%, which are higher than the three comparative examples.
Claims (10)
1. A planting method of rice containing high essential amino acid is characterized by comprising the following steps:
(1) arranging a seedling bed: selecting a seedling bed with flat terrain and fertile soil, removing weeds and broken stones on the surface of the seedling bed, deeply ploughing the soil and applying base fertilizer;
(2) seed treatment and sowing: soaking rice seeds for sterilization, watering the seedling bed thoroughly before sowing, and raising seedlings;
(3) field management: applying 50-60kg of vegetable cake fertilizer as base fertilizer to each mu of field before transplanting seedlings, and controlling the total fertilizer application amount to be 20-30kg of pure N and P in the whole growth period of rice2O55-10kg，K2O 5-10kg；
(4) Transplanting seedlings: transplanting the seedlings to the field when the seedlings are 25-30d old;
(5) applying crop nutrient controlling agent: spraying a crop nutrition regulating agent once in each of the booting stage, the final stage of heading and the milk stage of the rice, wherein the application amount of each time is 60-70 kg/mu, and the crop nutrition regulating agent comprises 4-20% of saccharifying enzyme waste liquid and 0.1-0.6% of monopotassium phosphate by mass.
2. The method for planting rice containing highly essential amino acids as claimed in claim 1, wherein the depth of deep ploughing in step (1) is 20-25cm, and the base fertilizer is decomposed farmyard manure of 250 kg/mu.
3. The method as claimed in claim 1, wherein the step (2) is carried out by soaking seeds in 400 times of 0.5% strong chlorine 200-.
4. The planting method of rice with high essential amino acid content as claimed in claim 1, wherein the seeding rate of the rice seedling bed in step (2) is 15-25 kg/mu.
5. The method for planting rice with high essential amino acid content as claimed in claim 1, wherein in the step (3), the nitrogen fertilizer is urea with nitrogen content of 46%, the phosphate fertilizer is calcium superphosphate with phosphorus content of 18%, and the potassium fertilizer is potassium chloride with potassium content of 60%.
6. The planting method of rice with high essential amino acid content as claimed in claim 1 or 5, wherein the nitrogen fertilizer in the step (3) is mixed with the base fertilizer by mass ratio: and (3) tillering fertilizer: ear fertilization: the granular fertilizer is applied according to the ratio of 3-4:2-3:2-3: 1-1.5; the phosphate fertilizer is used as a base fertilizer for one-time application; the potash fertilizer is applied according to the mass percentage of 55-65% of base fertilizer, 20-25% of tillering fertilizer and 15-25% of booting fertilizer.
7. The planting method of rice containing highly essential amino acids as claimed in claim 6, wherein the nitrogen fertilizer in the step (3) is mixed with the base fertilizer by mass ratio: and (3) tillering fertilizer: ear fertilization: the granular fertilizer is applied according to the ratio of 3.5:2.5:2.5: 1.5.
8. The planting method of rice with high essential amino acid content as claimed in claim 6, wherein the potash fertilizer in step (3) is applied in the proportion of 60% by mass of base fertilizer, 20% by mass of tillering fertilizer and 20% by mass of booting fertilizer.
9. The planting method of rice with high essential amino acid content according to claim 1, wherein the depth of the compartment surface water after transplanting in the step (4) is kept to be 1-2 cm; and (5) performing field drying treatment at the tillering peak period of 15-20 days after transplanting.
10. The planting method of rice with high essential amino acid content as claimed in claim 1, wherein the crop nutrition regulator in step (5) comprises 12% by weight of saccharifying enzyme waste liquor and 0.3% by weight of potassium dihydrogen phosphate.
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| CN111802194A (en) * | 2020-07-22 | 2020-10-23 | 湖南杂交水稻研究中心 | Processing method for improving internal quality of hybrid rice |
| CN113615515A (en) * | 2021-07-28 | 2021-11-09 | 乐东广陵南繁服务有限公司 | Direct seeding cultivation method for southern rice |
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| CN113615515A (en) * | 2021-07-28 | 2021-11-09 | 乐东广陵南繁服务有限公司 | Direct seeding cultivation method for southern rice |
| CN113615515B (en) * | 2021-07-28 | 2022-10-04 | 乐东广陵南繁服务有限公司 | Direct seeding cultivation method for southern rice |
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