Agrochemical Adjuvant,Stabilizing Agent,Stabilizing Surfactant Adjuvant,Agricultural Additive Agent Jiangxi Tiansheng New Materials Co.,Ltd , http://www.jxtsxcl.com
With the improvement of wheat production level and the frequent transportation of improved varieties, the incidence and harm of wheat propagation and soil-borne diseases have become more serious, which has become an important limiting factor for high yield, high quality and high efficiency of wheat in our province. Therefore, it has become an urgent problem to be solved in the wheat production to strengthen the research of wheat seed propagation and soil-borne disease occurrence and comprehensive prevention and control techniques. Causes of morbidity I. Partial application of nitrogen fertilizer is unbalanced fertilization, especially partial application of nitrogen fertilizer, is conducive to the occurrence of wheat sheath blight, root rot. Early sowing and large sowing are conducive to the occurrence of sheath blight, total erosion disease and nematode disease. 2. Continuous cropping of wheat crops and rotation with grass crops have resulted in the accumulation of pathogens of soil-borne diseases in the soil, making the wheat roots in a susceptible disease environment and increasing the incidence of disease. Third, straw returned to the field to increase soil organic matter content, but a large number of untreated wheat disease residues directly into the soil, resulting in the rapid increase in the number of pathogenic bacteria in the soil, the distribution is more uniform, very conducive to full-blown disease, sheath blight The spread of pathogens such as root rot, smut, etc. has caused soil-borne diseases from spotting to fragmentation, from sporadic occurrence to widespread recurrence. IV. Disordered production and transport of seeds Due to the weak phytosanitary awareness of some seed production and business units, wheat seeds were bred in wheat smut or full-eclipse disease areas, or wheat seeds were transported from infected areas, leading to black wheat. Spike disease and full-blown disease rapidly spread and spread, resulting in more and more serious damage. V. The current seed coating agents have poor quality and low efficiency. According to spot checks conducted by the Ministry of Agriculture in the past two years, the pass rate of domestic seed coating agents is about 70%, and the qualified rate of samples drawn from the market is less than 30%. The active ingredient content is even zero. Sixth, the weak awareness of farmers in disease prevention only pay attention to the prevention and control of wheat soil pests, lack of knowledge of wheat seed propagation and soil-borne diseases prevention, only use insecticide seed dressing or seed dressing with inferior seed coating, and even white seeds, leading to Wheat seed propagation and soil-borne diseases have become more and more serious. Integrated prevention and control technology Wheat seed propagation and soil-borne disease prevention and control shall follow the guidelines of “prevention first, comprehensive prevention and controlâ€. While strengthening quarantine control, it shall be based on agricultural prevention and control, chemical prevention shall be the dominant, and coordinated use of multiple measures. Effectively control the occurrence of such diseases. I. Plant quarantine Breeding of wheat seeds must be submitted to the quarantine department 15 days before sowing. The breeding materials must be quarantined and disinfested; it is forbidden to breed wheat seeds in quarantine subject areas such as full-blown leeches and smuts; Quarantine-qualified seeds must not be promoted for use in production. Units and individuals that breed, transport, and operate wheat seeds without permission in violation of the phytosanitary regulations must be severely dealt with in accordance with the law, ensuring the control of the spread of wheat quarantine diseases at the source. Second, agricultural control (a) selection of disease resistant varieties. In areas where wheat is full-blown and sheath blight is common, resistant varieties such as Yumai 18, Yumai 49, Xinmai 11, Zhoumai 18, Gaoyou 505 and Aixiu 4110 should be planted. (b) Rotation. In the recurrence area of ​​wheat full-blown disease, non-grass crops were planted to reduce the number of pathogenic bacteria in the soil and give full play to the antagonism of beneficial microorganisms in the soil. (c) Fine soil preparation. Deep plowing, intensive cultivation, improved seed quality, and early growth of strong wheat seedlings. (d) Rational fertilization. Increase organic fertilizers and apply special fertilizers for wheat to avoid partial application of nitrogen fertilizers and organic fertilizers with diseased bodies. (e) Strengthen management. Avoid early sowing, reasonable close planting, return to the green period and timely cultivating, promote the development of wheat roots, and create an ecological environment conducive to the growth of wheat and unfavorable to disease. (6) Elimination of diseased bodies. After the wheat is harvested, it is timely cleaned up of the diseased body. For the disease and debris of sheath blight and root rot, it should be brought out of the field for centralized treatment. Diseases with head smut and full-blown rot have to be burned on the spot to expand the immune situation. Third, biological control in the area of ​​full-blown disease, using biological pesticides to eliminate corrosion, corrosion enemy, 10 kg per 100 grams of wheat mixed species, back to the green period of 200 grams per acre with erosion of the enemy, add water 50 kg IRRIGATING, full-blown disease The control effect is up to 50%. In the recurrence area of ​​sheath blight, 50 grams of Jinggangmycin was used per acre in the returning green period, and 50 kilograms of water was added to the base of the stem. The control effect was 80%. Fourth, chemical control (a) pesticide seed dressing. In the area of ​​total eroded recurrence, with 12.5% ​​of the total eroded net, or 2.5% of the Shile, 10 kg of mixed wheat seed per 20 ml, the total control efficacy against total eroded disease reached 90%. Prevention of wheat smut disease with 3% of the enemy's Dan 20 ml, or 2% of Rickett's 15 grams, mixed with 10 kg of wheat, control effectiveness of 90%. In sheath blight and root rot disease-prone areas, use 10% of the 25% of the appropriate music, or 3% of the enemy's Dan 20ml of mixed seeds, 10 kg of pre-winter control effect. In pre-winter rust-prone areas, 3% of the enemy dandan or 3% of ricks show 20 grams of mixed wheat seeds 10 kilograms. In the recurrence area of ​​wheat cyst nematode disease, 3 kg of carbofuran suspension was mixed with 10 kg of wheat seed to treat both underground pests. (b) Pharmaceutical Irrigation. In the turning green period of wheat, in the area of ​​full-bleeding and sheath blight recurrence, use 12.5% ​​of enol 40 g per mu, or 20% of triadimefon 100 ml, add 50 kg of water and irrigate the roots to prevent various soil-borne diseases. , And powdery mildew and rust.