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Which varieties can be used for controlling the rice stem borer (Chilo suppressalis)?
(1) Fipronil. The recommended dose is 1.5-2.5 g active ingredient per mu. The key application points are: spray at the peak hatching stage of the rice stem borer eggs; the field may be kept with or without a water layer. Because fipronil is highly toxic to bees and aquatic organisms, and especially highly toxic to shrimp and crabs, do not use it in bee-keeping areas or shrimp and crab farming areas. If it must be used, it is recommended to drain the field water before application. After a rice field has been treated with fipronil, do not discharge the field water into fish ponds or rivers and ditches. (2) Fipronil + trichlorfon
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What are the agricultural control measures for rice pests?
In recent years, as the severity of rice pest outbreaks has continued to increase, the use of some highly toxic pesticides with large residual amounts on rice has also gradually increased, which has brought hidden dangers to rice safety. In response to this situation, starting in 2004, the author purposefully carried out agricultural control research in demonstration areas. Through two years of practice, the results showed that: agricultural measures applied to rice pest control have unique and superior effects compared with chemical pesticide control, biological control and physical-mechanical control, and have played a positive role in improving the control
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How is the rice variety Feiyou 600?
Feiyou 600 is a hybrid late indica rice variety developed by researcher Cheng Shihua and others in 1999 by crossing Feigai A with R600. This combination has medium tillering ability, large panicles with many grains, a relatively high 1000-grain weight, good yield potential, and relatively low fertilizer requirements. Its resistance to rice blast is significantly better than that of the control, its grain quality is slightly better than that of the control Shanyou 63, and its seed production yield is relatively high. It is suitable for single-season rice cultivation in Zhejiang Province, and in southern Zhejiang it can be grown as continuous late rice. In cultivation, attention should be paid to preventing lodging and controlling bacterial leaf blight. In the 2001 and 2002 Zhejiang Province single-season hybrid indica rice regional trials, the two-year
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Introduction to the Rice Variety Feiyou Duoxi No. 1
(1) Variety source: This variety is a medium-indica late-maturing combination developed by the Neijiang Hybrid Rice Science and Technology Development Center in 1992 by crossing the male sterile line Feigai A with the restorer line Duohui No. 1. (2) Characteristics: The full growth period is 145-150 days, 2-3 days shorter than the control Shanyou 63. The plant height is 105-110 cm, the panicle layer is neat, the seedling stage has vigorous growth, the leaves are medium-wide and erect, and the plant type is compact. The color turns well in the later stage and does not senesce early. The average number of grains per panicle is 136.5, the seed-setting rate is 85-90%, and the 1000-grain weight is 30
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Rice paddy field conditioner is a new type of fertilizer
Nong brand rice paddy field conditioner is a new type of fertilizer developed by the Soil and Fertilizer Institute of the Liaoning Academy of Agricultural Sciences. It is rich in more than 10 major, secondary and trace elements required for rice growth, seedling strengthening, seedling revival and tillering, and is also rich in free acids, with a strong function of adjusting the acidity of rice paddy soil, and can prevent the occurrence of old seedlings, yellow seedlings and stiff seedlings in rice. It can strengthen seedlings, provide rice with sufficient major, secondary and trace elements, organic nutrition, etc., make the plants grow robustly, promote high yield, loosen the soil, improve the soil microenvironment, and make the root system grow vigorously,
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Application Methods of Fertilizer Long in Formula Fertilization for Rice
1. Advantages of Fertilizer Long: (1) Long-acting and synergistic effect, extending the fertilizer efficiency period of nitrogen fertilizer by 1 time, with no fertilizer deficiency phenomenon throughout the entire growth period of rice. (2) Improved nitrogen fertilizer utilization rate; deep fertilization overcomes fertilizer loss due to running, overflowing and seepage of field water, reducing fertilizer loss. (3) Enhanced resistance of rice to low temperature, drought and disease erosion. (4) Changes traditional multiple surface fertilization to deep one-time fertilization, saving fertilization labor and costs. (5) Reduced nitrogen fertilizer dosage; according to plots with different fertility, the pure nutrient amount of nitrogen fertilizer can be reduced by 15%-25%. 2. Fertilizer Long
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Detailed introduction to the rice variety Fengaizhan No. 1
Fengaizhan No. 1 is a new conventional high-quality, high-yield rice variety bred by the Rice Research Institute of the Guangdong Academy of Agricultural Sciences through crossing Changsizhan with Fengqing'ai. Characteristics and traits: The variety participated in the early-season regional trials in Guangdong Province and Hainan Province from 1995 to 1996. The average yields per mu were 404.82 kg and 442.6 kg respectively, increasing yield by 5.96% and 16.51% compared with the controls Qishanzhan and QiguiZao 25, with the highest yield per mu reaching 642.5 kg. The grain quality is relatively good. According to measurements by the Grain Chemistry Laboratory of the China National Rice Research Institute, the brown rice rate is 80.9%, the milled rice rate is 73.7
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Detailed Introduction to the Rice Variety Fengbazhan
Variety Introduction: Fengbazhan is a new Thai Simiao-type high-quality aromatic rice variety, with grain quality rated Grade 1 for the early season and Special Grade 2 for the late season. Analysis of grain samples by the Institute's Grain Chemistry and Processing Research Laboratory showed an amylose content of 223%, a gel consistency of 46 cm, and an alkali spreading value of 70; the cooked rice is fragrant, moderately soft and firm, good in eating quality, and does not harden after cooling. According to determinations by the China National Rice Research Institute, 8 indicators reached the Ministry-issued Grade 1 standard for high-quality rice. In 1997, in both the early and late seasons, Fengbazhan was identified by the Institute's Plant Protection Research Laboratory as resistant to bacterial leaf blight (Group IV, grades 2-3
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Introduction to New Rice Hybrid Combinations from Fengle Seed
Yuxiangyou No. 2 is a new two-line hybrid rice combination developed by the Rice Research Institute of Fengle Seed using the broad-compatibility restorer line Fengxianghui No. 1 with Guangzhan 63s. It is a high-quality, high-yield, disease-resistant, aromatic two-line hybrid rice combination. In 2003 it entered the mid-season rice preliminary trial in Hubei Province, and in 2004 it entered the mid-season rice regional trial in Hubei Province. When cultivated as mid-season rice, the whole growth period is about 135 days, comparable to Shanyou 63. It has good vigor, plant height about 125 cm, total grains per panicle 180-200, seed-setting rate about 85%, 1000-grain weight 28 g, yield about 600
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Introduction to the Fengliangyouxiang No.1 Rice Variety
Fengliangyouxiang No.1 is a new two-line hybrid rice combination with high quality, high yield and aromatic type, bred by Hefei Fengle Seed Co., Ltd. It was approved in Jiangxi Province and Hunan Province in 2006, and approved in Anhui Province in 2007. Characteristics: This variety has a moderate plant type, uniform plants, upright culms, relatively wide leaves, upright top three leaves, strong tillering ability, good luxuriance, good color retention at the late stage, large panicles with many grains, and a relatively high seed-setting rate. At the temperature identification point of the Hejiashan Original Seed Farm in the Hunan provincial regional trial, this variety showed very good high-temperature resistance and good cold resistance.
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