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A new generation of paddy field herbicide - mefenacet


The phytotoxicity of rice, affecting rice tillering and growth. Early application of production would affect the application later in the weeding effect, farmers use more difficult to grasp and butachlor mefenacet has incomparable advantages. The amount of acres added to 120g of rice without adverse effects. Pesticide does not affect the production of the earlier application, weeding effect does not affect the application later in spring, low temperature conditions will not cause injury. 1.5 with a variety of anti-leaved grass j {} Jing mixed use, persistence selected more than 30 days. 2 of 21 physical and chemical properties and mechanism of chemical linked to quality. Mefenacet uniform appearance of loose white powder, pH value of 68. Can fan in water, non-flammable, no, light and heat acid and alkali stable, can be stored at room temperature for two years, are low-toxicity pesticides, no three-induced effect on the environment and food hygiene safety. 2.2 Mechanism. Mefenacet term selective absorption within the conduction bud after bud herbicide. Mainly through the coleoptile and root resorption, the xylem and phloem transfer to the shoots and leaves of weeds to prevent weed growth point cell elongation, eventually leading to plant death. Selectivity of rice. Mefenacet low solubility in water, so water conditions, the highest herbicidal activity spraying, soil adsorption mefenacet very strong after application dose is adsorbed on the surface most of the soil and the soil surface lem within the formation process layer, so to avoid the growing point and the drug exposure of rice to produce high security, while the growing point at the soil surface of barnyard grass and other weeds have a strong resistance damage and kill the reproductive capacity, and on the surface of the perennial weed seed propagation also has a strong inhibitory effect. 3 currently on the market now mefenacet species, belonging to benzoth more varieties of grass herbicides amines, due to different manufacturers, the trade name is different. Into the pesticide market in our province are: 50% wettable powder of rice and agricultural Hartley was mixed when the station agent (Zhejiang Yueqing pesticide r). 50% wettable powder to kill weeds and their special time with the farmers was a mixed preparation Wo Friends of Taiwan No. (Hegang pesticide plant in Heilongjiang Province.) In addition to barnyard special 50% WP and when mixed with the agricultural station agents have dragon boat racing (Liaoning Dandong Pesticide Plant.) 50% of the barnyard Marcos WP and its farmers have mixed units when preparations (pesticide plant in Kunshan, Jiangsu), as well as Dalian Ruize Shuiling WP. Some products are mefenacet have the time and Agriculture (Bensulfuron Huang Lung) preparation of mixed units, these products are safe and efficient generation of paddy field herbicides. The majority of rice farmers and peace of mind. North and South Bupleurum Bupleurum Sheng Bi �� difference. Yuan U.S. rise. Liu Huarui, Gui-lan. At Chong Tin. (1. Shandong Province, medicine technical schools 271000I2. Zaozhuang medicine Station) Bupleurum fBr. ~ Pleurumchinense border. ), Also known as bamboo Bupleurum, Bupleurum. South Bupleurum (B iv shame Pa umWilld). Bupleurum, also known as narrow leaf, red Bupleurum. Both are Umbelliferae to journalists, drugs, and the solvability of the table, the Sun, the effect of Shugan solution stasis. As the two very similar forms of plants, in production now can easily be confused with the South Bupleurum Bupleurum The main difference are presented below. A Bupleurum 11: root thick, hard, grayish brown or dark brown skin, often a small number of lateral roots. I2 South Bupleurum: root conical,[link widoczny dla zalogowanych], soft,[link widoczny dla zalogowanych], reddish-brown skin. 2 2.1 North tasted Hu stems: stem clusters or solitary, the upper part of multisection edge, slightly into the Stem base not fibrous stalk residue material. 22 South Bupleurum: stem single or 2 to 3 clusters, stems back to branch into more than the Department of shaped or narrowly elliptic, oblanceolate middle leaves have parallel veins 7-9. leaf width 6-16ram. 3.2 South owl Hu: cauline leaves and stems of lower leaves are long-handled, narrow strip or bar , a pulse from 5 to 7. leaf width of 3 ~ 7ram. 4 4.1 North Gao Hu spent: compound umbel, bright yellow flowers. 4.2 South Huan Wu: Complex umbel, flowers yellow. 5 Fruit 5 Bupleurum .1: Double hanging fruit, broadly elliptical, about flat. sub-valve shape of the banana fruit, convex or flat convex, length 2.5 ~ 3.6mm, width of 0.8 ~ 1.2mm, thickness 0.8 ~ I.I called n brown skin,[link widoczny dla zalogowanych], were rough,[link widoczny dla zalogowanych], wrinkled,[link widoczny dla zalogowanych], apex with persistent calyx and style residues, arched back of the five edges, belly masks two thin vertical stripes. endosperm with oily, embryo small. grain weight 1. 358-1.472g. 5.2 South Bupleurum: Double hanging fruit, oval in shape. sub-valve shape of the banana fruit. microbending long 2737mm, width 07 ~ 08mm, thickness 0.7-09mm. epidermal brown. top of the calyx and style persistent, base blunt end, back arched convex, with 5 edges, flat or concave ventral surface, with a central longitudinal groove, with a white thin line-like hanging fruit stalk, and fruit to the top connected. grain weight 130lg.
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