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Occurrence and Control Methods of Rice Pests and Diseases at the Mid-Season
According to field surveys of pests and diseases by each forecasting station, the field moth population of the third generation of the rice leaf roller is currently large, and the egg mass is high. All towns are urged to actively carry out control work. I. Occurrence situation: (1) Third generation of the rice leaf roller: 1. Field moth population: According to observations at each forecasting station, the field moth population
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Hybrid rice seeds hard to tell real from fake? 7 tricks to identify them easily
First look at uniformity. Hybrid rice seeds mixed with other rice grains have uneven grain shapes. The mixed-in male parent or other indica rice is obviously more slender and plump than hybrid rice seeds, while japonica rice grains are rounder. Second look at the glume color. Hybrid rice seed glumes have slightly uneven yellowish-brown and other physiological discoloration, while the grains of the male parent and the maintainer line are more uniform in color; the maintainer line and other mixed grains have higher transparency than hybrid rice seeds, and their glumes are smoother than those of hybrid rice seeds.
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Control Methods for the Small Brown Planthopper at the Rice Heading Stage
The small brown planthopper (Laodelphax striatellus) not only transmits viruses that cause rice viral diseases such as rice stripe virus disease, but also congregates on the panicles to cause damage during the heading stage of late rice. To clarify the control efficacy of pymetrozine and other pesticides against the small brown planthopper at the heading stage of late rice and the application techniques, Cheng Qinhai and others from the Plant Protection Station of Haining City, Zhejiang Province, conducted field
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What are the key management points during the grain-filling stage of rice?
The grain-filling stage of rice is the critical period that determines yield. Field management should aim to nourish the roots and protect the leaves, prevent premature senescence, improve photosynthetic efficiency, promote grain filling, and increase the seed-setting rate and grain weight. 1. Supplemental application of grain fertilizer: apply grain fertilizer according to the seedlings, the field, and the weather. Apply it when the leaf color is on the yellowish side and the flag leaf is short and small; do not apply it when the leaf color is deep green and the flag leaf is large and plump. Apply it to lean fields, not to fertile fields; apply it when there are many sunny days, not when there are many cloudy and rainy days. Generally, it is appropriate to apply 2-3 kg of urea per mu at the booting stage.
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Key Cultivation and Management Techniques for Machine Transplanted Rice
1. Field Ploughing and Preparation Requirements 1) Field ploughing and preparation: rotary tillage depth of 10-15 cm; plough tillage depth of 15-20 cm. 2) Field levelling: the surface height difference within each field block shall not exceed 3 cm. The field surface shall be basically free of weeds, debris, shallow stubble and other residues.
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What Are the Methods for Determining Herbicide Damage in Rice
Currently, most people mix pesticides when using them in order to increase their effectiveness. However, if used improperly, this can easily cause herbicide damage. How to determine whether it is herbicide damage through investigation and analysis? The following methods are introduced: 1. From
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The correct method for soaking and germinating hybrid rice seeds
Now is precisely the main spring production season. A small number of farmers, due to improper operation during the soaking and germination process, have encountered problems such as seeds turning sour and smelly and poor sprouting. Therefore, when soaking and germinating seeds, attention should be paid to: 1. Sun-drying the seeds: one week before soaking, choose a sunny day and sun-dry the seeds for 3-4 hours
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Key Field Management Points 5-7 Days Before Transplanting for Dry-Raised Rice Seedlings
As one of the rice industry demonstration county projects, Dapai Village, Shangguan Town, Dali City, has a rice area of 1425 mu this year, with a yield target of 750 kg/mu. To achieve high and even higher rice yields, agricultural technicians at both the city and town levels have gone into villages and households, gone deep into the fields, and earnestly guided
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Key Points of Fertilizer and Water Management Techniques for High-Yield Rice Cultivation
In high-yield rice cultivation, the level of yield is determined by fertilizer and water application as the core; fertilizer and water application should be decided according to the fertilizer requirements of the variety, the level of soil fertility, the planting time, etc. Generally, 100 kg of paddy rice requires 2 kg of pure N, 1.2 kg of pure P, and 1.5 kg of pure K. The fertilizer and water application measures are specifically proposed as follows:
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Rice planting requires good soil preparation and pre-transplanting weed control.
In order to better carry out agricultural technology extension work, in addition to conscientiously summarizing last year's work and arranging this year's tasks, to ensure increased crop grain production and income, on April 6, at the critical season, 3 scientific and technical personnel from the Kaiyuan City Seed Management Station went to Longtan Village and Renshou in Dazhuang Township to visit science and technology demonstration households.
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