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What are the latest control methods for the rice water weevil?
The rice water weevil is one of the more damaging invasive alien species in China, but it has not been included in China's first list of invasive alien species. Also known as the rice water weevil and rice root weevil, it is a national class II quarantine pest. It originated in North America and was first discovered in 1988 in Tanghai County, Tangshan City, China.
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How to grow rice seedlings? Latest technical methods tutorial
To do a good job of rice seedling raising, you must carefully select good seeds, do a good job of seed selection and sunning, chemical seed soaking, and appropriate-temperature germination promotion, strengthen seedling field management, and adopt the "four controls and one prevention" technical measures of controlling sowing period, controlling sowing rate, controlling water, controlling excessive growth, and preventing and controlling pests and diseases, so as to achieve uniform and complete seedlings,
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How to Grow Organic Rice: The Latest Cultivation Techniques and Methods Tutorial
Organic rice refers to rice grown without the use of chemically synthesized pesticides, chemical fertilizers, growth regulators and similar substances; instead, it follows natural laws and ecological principles and adopts a series of sustainable agricultural techniques to maintain a continuous and stable agricultural growth process. Growing organic rice has
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Latest Technical Methods Tutorial for the Prevention and Control of Rice Seedling Blight
Rice seedling blight is one of the most important diseases of dry-raised rice seedlings. Its main causes are excessively low temperatures, excessive day-night temperature differences, alkaline soil, insufficient light leading to weak and spindly seedlings, and excessive seeding rates. The main field symptoms are wilting of seedlings after emergence, easy breaking when pulled
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Latest Guide to Common Rice Disease Prevention and Control Techniques
1. Rice blast. Rice blast, also known as rice fever, can be divided according to the damage period and plant part into seedling blast, leaf blast, neck blast, branch blast, grain blast, and so on. Seedling blast: the base is grayish black, the upper part turns brown, curls and dies; when humidity is high, the diseased part produces a large amount of grayish black mold.
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How to prevent and control rice lodging? A detailed explanation of the latest measures
Types of rice lodging 1. Root lodging: due to poor root development, the roots are shallow and unstable, lacking support, so that under slight wind and rain they fall flat on the ground; 2. Stem lodging: because the stems are not sturdy and cannot bear the weight of the upper part, lodging of varying degrees occurs.
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Key Field Management Techniques for Rice During the Heading and Grain-Filling Stage
The heading and grain-filling stage of rice refers to the period from heading to grain maturity. Generally, early-maturing varieties require about 25-30 days, medium-maturing varieties require 30-35 days, and late-maturing varieties require about 40-45 days. The growth characteristics and appearance during the heading and grain-filling stage: 1. Growth characteristics. During this period, leaf growth stops
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Latest Technical Points for Late-Stage Field Management of Rice
Protecting the stems and leaves well, preventing premature senescence, enhancing the photosynthetic efficiency of rice plants after heading, and promoting high accumulation and high translocation of nutrients are among the key measures for achieving high yield and high quality in hybrid rice. Supplementary application of grain fertilizer: After hybrid rice heads, the functional leaves gradually turn yellow and wither; if fertilizer is deficient,
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How to Achieve High Yield in the Late Growth Stage of Rice? A Detailed Explanation of the Latest Cultivation Key Points
The period from heading to maturity in rice is called the late growth stage of rice. The management tasks during this period: first, to control pests and diseases well; second, to prevent premature senescence of rice; third, to prevent rice from excessive vegetative growth and late maturity. In order to achieve these three goals, it is recommended that farmer friends do the following work well: Pests and diseases
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Five Latest Measures for Quality and High-Yield Management of Rice in the Mid-to-Late Stage
After good early growth, rice enters the reproductive growth stage of the mid-to-late period. Strengthening field management at this stage is crucial to the yield and quality of rice. Moderate field drying Field drying should generally be carried out during the period when rice is not sensitive to water, that is, during the
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