-
After rice is flooded, attention must be paid to the three prevention measures
From mid-to-late June to mid-to-late July, southern regions are often hit by heavy rain, and some areas are prone to flooding disasters. If flooding occurs, in addition to carrying out conventional remedial measures, attention must also be paid to preventing outbreaks of bacterial diseases and mass outbreaks of migratory pests. Prevent the spread of bacterial brown stripe disease. As floodwaters overflow, the pathogen spreads and is transmitted and infects through wounds on rice plants caused by rain and floodwaters. The resistance of submerged rice plants declines, which is more conducive to disease spread. There is a process from after flooding to disease spread, therefore, for middle-season rice in flooded areas,
-
How to manage water and fertilizer well after rice is hit by floods
What should be noted when righting and washing rice seedlings? For flooded paddy fields, drain the standing water promptly and right the lodged seedlings; clear the ditches in time to lower the groundwater level. Where irrigation facilities have suffered heavy damage, organize forces promptly for emergency repairs. After the water in the paddy field recedes, open ditches to drain it, so that soil water in the field seeps into the ditches and is discharged, lowering the field moisture content as quickly as possible, so that the floating mud formed by flooding gradually settles and compacts, thereby promoting new root growth. For fields that have been submerged for a long time, the water can be drained off all at once in rainy weather; if there is scorching sun and high temperature, drain gradually, first letting
-
Introduction to the Characteristics of the Rice Variety Huhan 3
Variety source: Ma Wan Nuo // IRAT109 / P77. Characteristics: This variety is a conventional japonica-type upland rice. When grown as rainfed upland rice in the mid-season rice region of the middle and lower reaches of the Yangtze River, the average whole growth period is 113.8 days, 4.3 days later than the control Brazilian upland rice "IAPAR9". Plant height is 99.3 cm, seedling growth is vigorous, and the plant-leaf type is average. The number of effective panicles per mu is 179,000, panicle length is 19.4 cm, total grains per panicle is 101.6, seed setting rate is 71.0%, and 1000-grain weight is 26.2 g. Resistance: drought resistance grade 1, rice blast grade 1, bacterial blight
-
Introduction to the Characteristics of the Rice Variety Huahang 1
Variety Introduction: Huahang 1 is a new high-quality, high-yield rice variety bred by the Department of Agronomy at South China Agricultural University. Rice seeds were carried aboard a Chinese recoverable satellite for 15 days of space flight and then sown on the ground, and the variety was selected from several hundred mutant single plants grown on the ground. This variety has the following characteristics: 1. Excellent grain quality; the grains are transparent with no white belly, and the length-to-width ratio is 3.3-3.5. According to the appraisal by the Guangdong Provincial Grain and Oil Quality Inspection Station, the early rice belongs to the first-grade rice class. 2. Good yielding performance. Large panicles with many grains and a high seed-setting rate; the average total number of grains per panicle is about 209, and the number of filled grains is about 196,
-
Which varieties can be used to control the white-backed planthopper in rice?
To control the white-backed planthopper in rice, the varieties that can be used are: (1) Buprofezin. The recommended dosage is 7.5-12.5 grams of active ingredient per mu. The key application technique is: spray at the early outbreak stage of the brown planthopper, and it is best to maintain a water layer in the field when applying. (2) Imidacloprid. The recommended dosage is 1-2 grams of active ingredient per mu. The key application technique is: spray at the early outbreak stage of the brown planthopper.
-
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
-
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
-
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,
-
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
-
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
条件筛选