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Can 2,4-MCPA herbicide be used at the 2-leaf stage of rice?
Rice and other grass-family crops are sensitive to 2,4-MCPA before the 3-leaf stage, and improper use can easily cause herbicide injury to the crop, with symptoms such as deformed young leaves. After the 4-leaf stage, as leaf age increases, tolerance to 2,4-MCPA gradually strengthens, with the strongest tolerance at the peak tillering stage, and sensitivity gradually increases again after jointing. Therefore, in production it is generally required to apply 2,4-MCPA from the 4-leaf stage of rice to before jointing, and the dosage must not be increased at will, to ensure safety to rice. Nufarm Australia Limited's Agritox
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Detailed introduction to the rice variety II You 128
Breeding institution: Rice Research Institute, Guangdong Academy of Agricultural Sciences. Approval status: approved by the Guangdong Provincial Crop Variety Approval Committee in 1998, and by the National Crop Variety Approval Committee in 1999. Variety approval number: Guoshen Dao 990008. Variety source: II-32A x Huhui 128. Characteristics: a late-maturing thermo-sensitive hybrid rice combination. Plant height 100-105 cm, compact plant type, thick and sturdy stems. Effective panicles per mu 163,000, 140-150 grains per panicle, seed setting
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Introduction to the Characteristics and Traits of the II You 156 Rice Variety
Moderate plant type, relatively strong tillering ability, total growth period 138 days, plant height 125 cm, total grains per panicle 150-170 grains, seed-setting rate 85%, excellent grain quality, yield about 600 kg per mu. Sow early at the proper time, plant at a reasonable density, and apply fertilizer with emphasis on a heavy basal application. Resistant to rice blast, moderately resistant to rice bacterial leaf blight.
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Characteristics and traits of the rice variety II You 92
Breeding institution: Jinhua Institute of Agricultural Sciences, Zhejiang Province. Approval status: approved by the Zhejiang Provincial Crop Variety Approval Committee in 1994, by the Anhui Provincial Crop Variety Approval Committee in 1998, and by the National Crop Variety Approval Committee in 1999. Variety approval number: Guoshendao 990019. Variety source: II-32A//IR209/Ce64-7. Characteristics and traits: a temperature-sensitive hybrid medium indica variety. Plant height about 90 cm, compact plant type
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Ⅱ You 92-4 Rice Variety Introduction
(1) Variety source: This variety is a new late-maturing hybrid rice combination developed by the Neijiang Hybrid Rice Development Center, the Sichuan Provincial Seed Station, and the Leshan Municipal Academy of Agricultural Sciences by crossing Ⅱ-32A with restorer line 92-4. (2) Characteristics: The full growth period is 152 days, 4.1 days longer than Shanyou 63. Plant height is 118 cm, panicle length is 25 cm, average grains per panicle is 141, seed setting rate is about 85%, and 1000-grain weight is 28 g. It is cold-tolerant at the seedling stage, with dark green leaves, vigorous growth, strong tillering ability, compact plant type, erect flag leaves, and a high panicle-setting rate. It turns yellow well in the late stage.
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Introduction to Rice Variety 80 You 151
(1) Variety source: This variety was developed by the Jiangyou City Rice Research Institute by crossing Jiangyu 80A with Jianghui 151. (2) Characteristics: The full growth period is 147.5 days, 1.3 days longer than the control; plant height is 113.1 cm; seedling vigor is strong; tillering ability and panicle-setting rate are comparable to the control; leaf sheath and apiculus are colorless. Panicle length is 24.6 cm; grains per panicle: 156.4; seed-setting rate 78.38%; 1000-grain weight 29.6 g. Processing and appearance quality are superior to the control, and resistance to rice blast is stronger than the control.
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Detailed Explanation of Key Points for Rice Field Management in August
I. Apply rice field herbicides at the right time. To eliminate weeds in the rice field, rice field herbicides should be applied at the right time. This saves labor (no need for intercultivation) and money (about 2 yuan per mu for chemicals), and can also resolve the conflict of weeds competing with rice seedlings for fertilizer and light, which restricts the normal growth and development of rice seedlings. The specific method is: 5-7 days after transplanting, use 20 grams of Caodaolong or 60-100 grams of Dingbian per mu, mixed with urea (combined with topdressing), fine sand or dry mud powder 30-40 jin, and broadcast after the dew has dried, maintaining a shallow water layer for 4-5 days. II. Achieve scientific fertilization. Late rice in our province
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A Detailed Explanation of 8 Advanced Rice Transplanting Methods
1. Improved intensive cultivation: Transplant young seedlings early at the 3-leaf to 4-leaf 1-heart stage. Fields with a good water source should be planted early, while fields with a poor water source can be planted slightly later. Both dry-raised seedlings and water-raised seedlings are suitable, but in all cases sufficient basal fertilizer should be applied, the soil should be deeply plowed and harrowed level, strong seedlings should be selected as much as possible, and transplanting should be done in shallow water; both row spacing and hill spacing are 1 chi 3 cun, with three single plants per hill spaced 3 cun apart in a triangular arrangement. This transplanting method has density within sparseness and sparseness within density, reducing competition among plants for nutrients and sunlight to the greatest extent, which is beneficial to the individual development of the plants and can therefore greatly increase yield. It is the most advocated transplanting method today.
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Introduction to rice variety 95xw-67
Characteristics 5xw-67 is a conventional rice variety bred by the Crop Research Institute of the Ningxia Academy of Agriculture and Forestry Sciences. It participated in the National Northern Rice Regional Trial from 2000 to 2001. In the 2000 preliminary trial, the average yield was 692.0 kg/667 sq m, an 11.4% increase over the control Qiuguang, not significant. In the 2001 continued trial, the average yield was 692.3 kg/667 sq m, an 8.7% increase over the control Qiuguang, reaching a significant level. In the 2001 production trial, the average yield was 704.5 kg/667 sq m, an 18.7% increase over the control Qiuguang. The average whole growth period over the two years of regional trials was 154.7 days, 3.2 days later maturing than the control. Plant height 105.5 cm, total grains per panicle 134.4, filled grain rate 84.4%, 1000-grain weight 26.7 g. Seedling blast grade 3, leaf blast grade 0, panicle blast rate 0%-46%. Head rice rate 57.1%-56.6%, chalky grain rate 66%-46%, chalkiness degree 7.3%-4.6%, amylose content 16.2%-18.7%, gel consistency 81-90 mm. After two years of regional trials and one year of production trial, this variety showed a moderate maturity period, good yield performance, resistance to seedling blast and leaf blast, susceptibility to panicle blast, and medium grain quality.
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Detailed introduction to rice variety 9703a
The plant type is relatively compact, with vigorous growth, a medium panicle type, medium tillering ability, dark green leaves, good population uniformity, good late-stage maturity color, and relatively strong lodging resistance; inoculation identification showed moderate susceptibility to bacterial blight, moderate resistance to panicle blast, and susceptibility to sheath blight; for stripe disease, the highest hill incidence rate in field planting identification from 2004-2006 was 66.0% (the average hill incidence rate of the susceptible control over two years was 87.6%); according to quality testing by the Food Quality Inspection Center of the Ministry of Agriculture in 2004, the head rice rate was 73.5%, the chalky grain rate was 7.0%, the chalkiness degree was 0.4%, the gel consistency
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