Research Of Cultivation And Variety Show Of Yan-nong19 In Bengbu

This paper introduced the experimental culture and wheat demonstration test of Yannong 19. It studied the impact of sowing time and sowing quantity on the agronomic and economic characters of Yannong 19 and summarized the characteristics and high-yield culture technique of Yannong 19 in Bengbu city.Besides,it also discussed results of new varieties’show trials、promotion measures and promotion constraints; Further-more, the paper introduced the benefit of Yannong 19 by promoting in Bengbu city. In the end, We explored the future of wheat high-yield culture technique and the attention in introduction. Draw the following main conclusions:1. Cultivation results of Yannong 19. The appropriate sowing-stage of Yannong 19 was from October 12 to October 18,and seeding rate was 150,000 every 667m2. we take low-density 75,000 every 667m2 at early sowing as the early October and high-density at late sowing225,000 every 667m2 as the late October. Sowing time as well as seedling numbers also affects the reproductive process leaves tiller dynamics and cold resistance of the plants. In reproductive process aspect, it exhibits the later sowing, the later mature period is,however the seeding numbers has almost no effect on fertility; The stem leaf is increased when sowing time delayed or seedling numbers reduced; appropriate early sowing time is contributed to improving plants’hardiness,and density is too large to decline plants’hardiness.2.The results of new varieties’show trials. To analyze the performance of Yannong in the show trials from 2008 to 2013, Yannong 19 belongs to mid-late-maturing wheat variety.with longer growth period between 227 and 233 days,Also Yannong 19 has strong tiller earing rate capability with the highest tillering up to 1.358 million/mu and earing rate can reach 50.92%.The plant height is between 82 and 88 cm, spike number per acre is between 40-43,grain number is between 32-35, TKW (Thousand Kernels Weight) is between 40-42 g and paid-in acre yield is among 420-530 Kg.3. Analysis the Yannong 19’s phenotypic expression and benefits in Bengbu areas. Currently, yannong 19 is the largest promotion area of wheat varieties in Bengbu region, which has the characteristics of high quality, high yield and stable yield, strong resistance. And it obtained the remarkable economic benefit and social benefit with increasing farmers’ income and improving the level of scientific farming, and promoting the upgrading of wheat seed in Bengbu.4. The Analysis of the demonstration and promotion measures and promotion constraintsof Yannong 19 in Bengbu. With the mode of’advantage varieties, supporting technology and policy’in three counties and downtown of Bengbu, yannong 19 has become the leading products in wheat planting. The main promotion measures of Yannong 19 in Bengbu District are:one is the promotion of key technology and the improvement of the level of scientific farming, which includes:scientific planting technology;measured soil fertilizer and nitrogen fertilizer backwards; integrated control of the diseases,insect pests and weeds damage; to create high yield research core demonstration area, radiating and driving;and the whole system and scale planting. Second is to strengthen basic service work, and provide the basis for scientific guidance.which includes:"three conditions" monitoring;to establish and improve varieties of wheat breeding bases;to strengthen the technical services. The constraints included:One is asymmetric information restrict the promotion of the thoroughbred;the second is As influenced by traditional cultivation habits, it has difficulties to upporting the promotion of good law with seed.5. Discussion for the attentions of science introduction. Science introduction should pay particular attentions to find the introduction objectives and adhere to the principles-"testing、 demonstration、promotion". In addition, it also discussed the outlook for wheat yield cultivation techniques.