Application of Jian 18 in improving yield and quality of rice

Abstract

The application provides application of Oryza sativa in improving yield and quality of rice and belongs to the technical field of agricultural production. The application of Oryza sativa in improving yield and quality of rice. The application can improve the photosynthetic efficiency of leaves by about 30% and the dry matter synthesis rate by about 25% and accelerate the photosynthetic matter transport speed to improve grain fullness, finally increase the thousand-grain weight, improve the yield and rice quality by applying specific doses of Oryza sativa at the late tillering stage, the breaking stage and the full heading stage of rice.

Description

Technical Field

[0001] This invention belongs to the field of agricultural production technology, specifically relating to the application of sword rice in improving rice yield and quality. Background Technology

[0002] Rice is a major grain crop in my country, accounting for over 40% of the country's total grain production, while my country's grain production accounts for 19.1% of the world's total. Therefore, stable increases in rice production play a fundamental role in ensuring my country's food security. In recent years, with the gradual expansion of rice cultivation area and continuous farming, improving rice yield and quality has become a technical challenge. Due to rice's specific nutrient requirements and the deterioration of paddy field soil conditions in recent years, indiscriminate fertilizer selection and application have a significant impact on rice yield and quality. Insufficient dosage results in unsatisfactory fertilizer effects and a short-lasting effect, while excessive dosage poses a high risk of fertilizer damage and can easily lead to problems such as excessive vegetative growth, premature aging, lodging, and an increase in empty grains. Summary of the Invention

[0003] The purpose of this invention is to provide the application of sword rice in improving rice yield and quality. The sword rice effectively promotes rice photosynthesis, improves photosynthetic efficiency and dry matter synthesis rate, thereby increasing rice yield and quality.

[0004] This invention provides the application of sword rice in improving the yield and quality of rice.

[0005] Preferably, the improvement of rice yield and quality includes reducing the empty grain rate and / or increasing at least one of the following indicators: yield per mu, yield increase rate, thousand-grain weight, panicle formation rate, grain filling rate, and number of effective panicles per mu.

[0006] Preferably, the application of the sword rice is at the late tillering stage, the heading stage, and the heading stage.

[0007] Preferably, when applying sword rice at the late tillering stage, the dosage is 45-55 mL per mu; When applying sword rice during the heading stage, the dosage is 28-32 mL per mu; Apply sword rice at the heading stage, using 75-85 mL per mu.

[0008] This invention provides a method for rice cultivation, comprising the following steps: Sword rice was applied at the late tillering stage, the heading stage, and the full heading stage of rice.

[0009] Preferably, when applying sword rice at the late tillering stage, the dosage is 45-55 mL per mu; When applying sword rice during the heading stage, the dosage is 28-32 mL per mu; Apply sword rice at the heading stage, at a rate of 75-85 mL per mu; The working concentration of the sword rice is 2000~3300 ppm.

[0010] Preferably, when applying sword rice at the late tillering stage, the dosage is 50 mL per mu; When applying sword rice during the heading stage, the dosage is 30 mL per mu; Apply sword rice at the heading stage, using 80 mL per mu.

[0011] Preferably, the application method of the sword rice includes foliar spraying.

[0012] This invention provides the application of sword rice in improving the photosynthesis of rice and / or promoting the synthesis of dry matter in rice.

[0013] Preferably, improving the photosynthesis of rice includes improving the photosynthetic efficiency of rice leaves; Promoting rice dry matter synthesis includes increasing the rate of rice dry matter synthesis.

[0014] This invention provides the application of sword rice in improving rice yield and quality. By comparing the effects of common rice fertilizers and sword rice in rice cultivation, the results show that, compared with other fertilizers such as Haiyoumei, Xijian, Wangqiu, Duobaoyu, Yishibang, and Gengzhiyun, sword rice has the best effect on increasing rice yield and quality. Sword rice, rich in alginic acid, has a strong photosynthetic promoting effect, increasing leaf photosynthetic efficiency by approximately 30% and dry matter synthesis rate by approximately 25%, and accelerating the transport of photosynthetic substances, thereby improving grain plumpness and ultimately increasing thousand-grain weight, while simultaneously improving yield and rice quality. Attached Figure Description

[0015] Figure 1 Rice yield results for different treatment groups; Figure 2 Results of effective panicle weight and thousand-grain weight of rice in different treatment groups; Figure 3 The results show the yield increase rate, panicle formation rate, grain filling rate, and empty grain rate of rice in different treatment groups. Detailed Implementation

[0016] This invention provides the application of sword rice in improving the yield and quality of rice.

[0017] In this invention, the sword rice was jointly developed by Zhejiang Agricultural Biotechnology Co., Ltd. and Zhejiang University, and is China's first gene-based fertilizer for increasing rice yield. The raw material for sword rice production is Sargassum fusiforme, which contains abundant alginic acid. In this embodiment of the invention, the sword rice was purchased from Zhejiang Shiyuan Jinniu Biotechnology Co., Ltd., with product number Nongfei (2018) Zhunzi 12324.

[0018] In this invention, the preferred application times for the sword rice are the late tillering stage, the heading stage, and the full heading stage. When applying sword rice at the late tillering stage, the preferred dosage is 45-55 mL per mu (approximately 0.067 hectares), but it can be 47-53 mL or even 50 mL. When applying sword rice at the heading stage, the preferred dosage is 28-32 mL per mu (approximately 0.067 hectares), but it can be 29-31 mL or even 30 mL. When applying sword rice at the full heading stage, the preferred dosage is 75-85 mL per mu (approximately 0.067 hectares), but it can be 78-82 mL or even 80 mL. When applying sword rice, it is preferred to dilute it 300-500 times, but it can be 430-470 times or even 450 times to obtain a working solution with a concentration of 2000-3300 ppm, but it can also be 2500-3000 ppm or even 2800 ppm.

[0019] In this invention, the improvement of rice yield and quality preferably includes reducing the empty grain rate and / or increasing at least one of the following indicators: yield per mu, yield increase rate, thousand-grain weight, panicle formation rate, grain filling rate, and number of effective panicles per mu.

[0020] This invention provides a method for rice cultivation, comprising the following steps: Sword rice was applied at the late tillering stage, the heading stage, and the full heading stage of rice.

[0021] In this invention, the application rate of the sword rice at different times is the same as described in the above technical solution, and will not be repeated here.

[0022] In this invention, the preferred method for applying the pesticide to the sword rice includes foliar spraying. In this embodiment, the foliar spraying is specifically performed by aerial spraying from a plant protection aircraft. The spraying rate is 3-5 m / s, and can be 4 m / s.

[0023] This invention provides the application of sword rice in improving the photosynthesis of rice and / or promoting the synthesis of dry matter in rice.

[0024] In this invention, improving rice photosynthesis preferably includes increasing the photosynthetic efficiency of rice leaves. Promoting rice dry matter synthesis preferably includes increasing the rate of rice dry matter synthesis. The sword rice variety is suitable for rice, achieving a leaf photosynthetic efficiency of over 30% and a dry matter synthesis rate of over 25%. The following detailed description, in conjunction with embodiments, illustrates the application of the sword rice provided by this invention in improving rice yield and quality; however, these descriptions should not be construed as limiting the scope of protection of this invention.

[0025] Description of the composition and source of the rice fertilizer used in this embodiment 1. Sword Rice, active ingredient indicators: enzymatically hydrolyzed seaweed extract ≥600 g / L (alginic acid ≥9 g / L); free amino acids ≥100 g / L (humic acid ≥30 g / L); fulvic acid ≥30 g / L; Ca+Mg+B ≥30 g / L; N+K2O ≥30 g / L. The dosage form is aqueous solution, developed and produced by Zhejiang Shiyuan Jinniu Biotechnology Co., Ltd.

[0026] 2. Haiyoumei (Registration Certificate No.: Nongfei (2018) Zhunzi 12324; Implementation Standard: NY1429-2010; Technical Indicators: Sargassum seaweed extract ≥600 g / L, free amino acids ≥100 g / L, Ca content 20 g / L, Mg content 10 g / L, formulation is aqueous solution, developed and produced by Zhejiang Shiyuan Jinniu Biotechnology Co., Ltd.)

[0027] 3. Xijian Seaweed Phosphorus and Potassium Formula: Nutrient content indicators: Phosphorus ≥ 400 g / L, Potassium ≥ 500 g / L, Seaweed extract ≥ 100 g / L, Zinc ≥ 0.5 g / L, Polyboron ≥ 1.5 g / L. It is a water-based formulation, jointly developed and produced by Shandong Duofen Agricultural Co., Ltd. and the Institute of Oceanology, Chinese Academy of Sciences.

[0028] 4. Wangqiu Amino Acid, technical specifications: amino acids ≥100 g / L, Mn ≥10 g / L, Zn ≥7 g / L, B ≥0.5 g / L, Fe ≥2 g / L, Mo ≥5 g / L, pH: 5-7, dosage form is aqueous solution, produced by BASF (China) Co., Ltd.

[0029] 5. Turbot technical specifications: fish protein ≥350 g / L, organic matter ≥210 g / L, deep-sea fish protein peptides ≥200 g / L, free amino acids ≥100 g / L, Mn+Zn+B+Fe ≥20 g / L, nitrogen+phosphorus+potassium ≥100 g / L, formulation is aqueous solution, produced by Zhejiang Ougenake Marine Biotechnology Co., Ltd.

[0030] 6. Yishibang technical specifications: amino acid content ≥110 g / L, manganese content ≥100 g / L, zinc ≥100 g / L, dosage form is aqueous solution, operated by Syngenta (China) Investment Co., Ltd., and produced by Italian Westgate Group.

[0031] 7. Gengzhiyun Potassium Dihydrogen Phosphate, technical specifications: KH2PO4≥99.0%, phosphorus oxide ≥52.0%, potassium oxide ≥34.0%, dosage form: expansion agent, produced by Shanghai Yibaifu Import & Export Trading Co., Ltd.

[0032] Example 1 The experiment was conducted from August to November 2025 at the Chujiahui Modern Agricultural Rice Planting Base in Xitang Town, Jiashan County, Zhejiang Province. The total experimental area was 80 mu (approximately 5.3 hectares), with a total of 8 treatments. The experiment planned to apply Xijian® seaweed phosphate and potassium fertilizer, Haiyoumei, Yishibang, Jiandao, Wangqiu, Duobaoyu, and Gengzhiyun® potassium dihydrogen phosphate fertilizers by aerial spraying at three stages: late tillering stage, heading stage, and heading stage. The application rates per mu were 50 mL at the late tillering stage, 30 mL at the heading stage, and 80 mL at the heading stage, respectively. See Table 1 for details.

[0033] Table 1. Application methods of various rice fertilizers

[0034] The experiment involved three pesticide applications: the first on August 14th at the late tillering stage, the second on August 30th at the heading stage, and the third on September 30th at the heading stage. After maturity, yield traits such as thousand-grain weight, panicle formation rate, seed filling rate, empty grain rate, effective panicles per mu (667 square meters), yield per mu, and yield increase rate were investigated. The method used was a five-point sampling method per treatment, with samples taken in 50cm × 50cm iron frames, dried, and used for seed evaluation.

[0035] Table 2. Results of various indicators in rice cultivation for each treatment group

[0036] Table 3. Results of the survey on rice yield and quality

[0037] From Tables 2 to 3, Figure 1 , Figure 2 and Figure 3 It can be seen that the rice yield increased in all treatment areas treated with Xijian® seaweed phosphate and potassium fertilizer, Haiyoumei, Yishibang, Jiandao, Wangqiu, Duobaoyu, and Gengzhiyun® potassium dihydrogen phosphate fertilizer. The yield increase rate, from highest to lowest, was as follows: Treatment 4 Jiandao rice yield increase rate 6.4%; Treatment 6 Duobaoyu yield increase rate 5.4%; Treatment 3 Yishibang yield increase rate 4.9%; Treatment 5 Wangqiu yield increase rate 3.4%; Treatment 2 Haiyoumei yield increase rate 2.5%; Treatment 7 Gengzhiyun® potassium dihydrogen phosphate yield increase rate 1.8%; and Treatment 1 Xijian® seaweed phosphate and potassium fertilizer secondary yield increase rate 1.5%. The highest yield increase rate was achieved in Treatment 4 Jiandao rice at 6.3%, and the lowest was achieved in Treatment 1 Xijian® seaweed phosphate and potassium fertilizer secondary yield increase rate at 1.5%.

[0038] The results of the above examples show that applying sword rice at the late tillering stage, heading stage, and full heading stage results in the highest yield increase and the most significant increase in thousand-grain weight.

[0039] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. Application of sword rice in improving rice yield and quality.

2. The application according to claim 1, characterized in that, The improvement of rice yield and quality includes reducing the rate of empty grains and / or increasing at least one of the following indicators: yield per mu, yield increase rate, thousand-grain weight, panicle formation rate, grain filling rate, and number of effective panicles per mu.

3. The application according to claim 1, characterized in that, The optimal application times for sword rice are the late tillering stage, the heading stage, and the full heading stage.

4. The application according to claim 3, characterized in that, When applying sword rice at the end of the tillering peak stage, the dosage is 45-55 mL per mu; When applying sword rice during the heading stage, the dosage is 28-32 mL per mu; Apply sword rice at the heading stage, using 75-85 mL per mu.

5. A method for rice cultivation, characterized in that, Includes the following steps: Sword rice was applied at the late tillering stage, the heading stage, and the full heading stage of rice.

6. The method according to claim 5, characterized in that, When applying sword rice at the end of the tillering peak stage, the dosage is 45-55 mL per mu; When applying sword rice during the heading stage, the dosage is 28-32 mL per mu; Apply sword rice at the heading stage, at a rate of 75-85 mL per mu; The working concentration of the sword rice is 2000~3300 ppm.

7. The method according to claim 6, characterized in that, When applying sword rice at the end of the tillering peak stage, the dosage is 50 mL per mu; When applying sword rice during the heading stage, the dosage is 30 mL per mu; Apply sword rice at the heading stage, using 80 mL per mu.

8. The method according to claim 6, characterized in that, The application method for the sword rice includes foliar spraying.

9. Application of sword rice in improving photosynthesis and / or promoting dry matter synthesis in rice.

10. The application according to claim 9, characterized in that, The improvement of rice photosynthesis includes increasing the photosynthetic efficiency of rice leaves; Promoting rice dry matter synthesis includes increasing the rate of rice dry matter synthesis.

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