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Will rice suffer from quinclorac phytotoxicity after reseeding
Question: 4 mu of direct-seeded rice is at the 3-leaf 1-heart stage. Very few seedlings emerged after sowing, there are no seedlings in the low-lying areas, and the emergence rate is less than 50%. The sowing rate was 7-7.5 kg per mu. Not long ago, quinclorac was used for the "second kill" weed control. May I ask, if rice is reseeded in the areas of this field where no seedlings emerged, will the reseeded rice suffer from quinclorac phytotoxicity? Answer: Quinclorac is a selective herbicide for controlling barnyardgrass in paddy fields. It is generally applied at the 2-leaf 1-heart stage of rice, and applying it too early easily causes phytotoxicity. Before the 1-leaf stage of the seedlings, especially at the needle standing stage, applying quinclorac at the conventional rate
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Rice direct seeding machine successfully developed, efficient and versatile, boosting rice sowing
Recently, a "Multifunctional Soil-Covering Direct Seeding Machine Rice Mechanical Direct Seeding Field Demonstration" organized by the China National Rice Research Institute was held in Buqiao Village, Fuyang City, Zhejiang Province, with more than 40 experts from home and abroad attending the field observation event. In recent years, China's rice mechanical transplanting technology has developed rapidly, and a number of different types of transplanters suited to China's rice production have been developed and produced. However, the development and research of rice direct seeding machines and mechanical direct seeding technology have lagged relatively behind, and no mainstream rice mechanical direct seeding technology has yet taken shape. To overcome the problems of poor seedling establishment, easy lodging, premature aging, and difficult and costly weed control
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Key Technical Points and Methods for Direct Seeding Afforestation of Caragana microphylla
Caragana microphylla, a shrub or small tree of the Fabaceae (Papilionaceae) family, is extremely light-demanding, resistant to severe cold and intense heat, highly tolerant of drought and barren soil, and highly adaptable. It is an excellent tree species for sand fixation and soil conservation in deserts and grasslands. Its tender branches and fresh leaves are good fodder for livestock, especially sheep, and it is also a good firewood plantation species. Seeds can be collected for direct seeding afforestation. The seeds mature from July to August; harvest when the pods are hard and yellow-brown. The time from fruit maturity to pod dehiscence is very short, so harvest as they ripen. Dry the harvested pods in the sun and remove the pod shells and debris. Good seeds are yellow-green or cream-yellow and glossy.
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Detailed Explanation of Key Techniques for Direct Seeding Afforestation of Siberian Apricot
Direct seeding afforestation of Siberian apricot requires little investment, forms forests quickly, has low costs, is simple and easy to carry out, and moreover delivers very considerable benefits. Its development prospects are extremely broad, and it is one of the important ways for people in mountainous areas to build wealth. 1. Time and method of direct seeding Direct seeding afforestation of Siberian apricot is divided into two types: spring sowing and autumn sowing. ① Autumn sowing: for autumn-sown seeds, soak the seeds in 50-60°C water for 24-48 hours, remove them and rinse repeatedly with clean water, then dress the seeds with 10% zinc phosphide or another repellent (to prevent rodent damage), and then sow. ② Spring sowing: for spring-sown seeds, after the beginning of winter,
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Seeding and Seedling-Raising Methods and Key Techniques for Dianthus
Dianthus is a perennial herbaceous plant of the genus Dianthus in the family Caryophyllaceae, with numerous varieties and rich flower colors, and it is mainly propagated sexually. When raising Dianthus seedlings, choose a flat, dry site, apply 15 kg of compound fertilizer, deep-plow, break up the soil, and level it, then form beds 1 m wide. Irrigate once thoroughly, and sow immediately after the water seeps in. After sowing, cover with a thin layer of fine soil, set up a small arch shed, and cover with plastic sheeting. The temperature inside the shed should preferably be 20°C to 26°C, so that seedlings emerge in about 10 days. After emergence, pay attention to ventilation to prevent excessive growth, so as to achieve the purpose of hardening the seedlings
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Several Types of Potato Seeding and Planting Machinery
1. 2BMF-2 potato planter. This machine is matched with an 8.8 kW-12 kW (12 hp-16 hp) small four-wheel tractor and can complete multiple operations in one pass, including furrowing, fertilizing, seeding and soil covering. It features labor saving, effort saving and convenient adjustment and use. Main technical parameters: seed breakage rate <=1%, double-seed rate <=8%, empty-hole rate <=2%, productivity 4 mu/hour. 2. 2BXSM-1B potato fertilizing and seeding machine. This machine is an ideal potato planter for dryland flat-cultivation areas.
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Detailed Explanation of Direct Seeding Cultivation Techniques for Licorice
Cultivation Techniques Site Selection Licorice is a deep-rooted plant, so flat, fertile, loose sandy soil or loam should be selected for planting. The best preceding crops are wheat, corn, and melon or vegetable fields, and continuous cropping with sugar beet or sunflower should be avoided. Land Preparation and Fertilization Deep plow the selected land to more than 26 cm, apply 2000 kg to 3000 kg of fully decomposed organic fertilizer per mu, and 18 kg to 20 kg of diammonium phosphate, then harrow the soil finely, level it, and make beds. The bed ridges should be 20 cm to 30 cm wide and 20 cm high, the beds should be 2 m to 2.5 m wide, and the bed length depends on the terrain.
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Direct seeding cultivation techniques for licorice in the Hexi arid region
Licorice is the most commonly used bulk medicinal herb, hailed as the king of medicines. The currently cultivated species is Glycyrrhiza uralensis (Ural licorice), a plant of the genus Glycyrrhiza in the Fabaceae family. It is highly water-saving, drought-tolerant and cold-tolerant, and is an excellent windbreak and sand-fixing vegetation for arid and semi-arid desert areas. The medicinal part is the dried root, which not only has effects such as tonifying the spleen and boosting qi, relieving cough and expelling phlegm, clearing heat and detoxifying, and harmonizing the properties of medicines, but is also widely used in daily necessities, light industry, animal husbandry and the food industry. Minqin County, located on the edge of the Badain Jaran Desert and the Tengger Desert, is a major production area for cultivated licorice in Gansu Province
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Detailed Explanation of Licorice Cultivation and Grassland Reseeding Techniques
Licorice (Glycyrrhiza) is a wild medicinal and forage plant. Based on its biological and ecological characteristics, adopting agricultural technical measures can break seed dormancy and increase the germination rate; meet the water and nutrient requirements of licorice growth and development, and increase its biomass yield. 1. Licorice cultivation techniques (1) Seed treatment. Use a rice mill to scratch the seed coat, taking care not to crush the seeds; milling twice gives the best results, and the germination rate can be increased from 30% to over 80%. (2) Site selection and pre-sowing land preparation. On sandy land, sand-covered land, and beach land types
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Key cultivation techniques for Angelica sinensis seedling transplanting and direct seeding propagation
1. Seedling transplanting (1) Seed selection: Fresh seeds set in the second year after transplanting should be selected as seed. Around the Start of Autumn, when the seed coat turns sky blue or pink and the flowering stems droop, cut them off together with the flowering stems, place them in a ventilated and dry place to dry, then thresh and store for later use. Never expose to strong sun, roast, or rain. (2) Sowing and seedling raising: Generally sow around the Start of Autumn, sowing immediately after harvest; in lower-altitude areas with slightly higher temperatures, sowing from mid-August to early September is suitable. Timely sowing can avoid early bolting of Angelica sinensis. If too early, the seedling growth period is long,
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