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Dahua Fragrant Glutinous Rice Breeding and Utilization


kg / mu yield levels rarely fall over. Irrigation and Nitrogen in the more reasonable. 700kg / mu yield of the plots are no lodging and yield of the phenomenon of three techniques of cultivation of high yield 3.1, 3.1.1 Population Quality Index results show that the yield on the Index. Dahua Cephalostachyum more than 650kg per mu, the yield level (y) and mu spikes (X), filled grains per panicle (X), thousand grain weight (X) of the multiple regression equation is Y a 219.73 +29.5 X +1]. 06X a 48.9X. . The path coefficients were a 2.04,[link widoczny dla zalogowanych], P: a 1.3, P3 a 0.158. In the high-yield cultivation, production-related factors and the degree of acres of spike closely> grains> grain weight. At the same time. Correlation analysis. Panicles and grains per acre and yield showed a quadratic relationship. Was negatively correlated with grain weight and yield were not significant. So Dahua Cephalostachyum Cultivation must strive to increase the basis of full spike grains. Take into account the weight of which appropriate spike is the key. The results showed that the acres of panicles and yield showed a quadratic curve. One by one equation is y 1.72 672.34 +9,516 one. r. When the spike is 266,600 acres,[link widoczny dla zalogowanych], the highest yield per mu. More than 650kg per mu yield components survey results indicated. Acre plots suitable for high spikes in the 25 to 27 million. 3.1.2 Dynamic Index tiller experiments show that in different planting density. X and y basic seedling yield a regression equation y 225.17 +7 g. 19X a 3.62X. When the planting density of 8 to 10 million / acre time. The highest yield. 36.9 base acres only spike. Yield field peak for the 339 800 seedlings / acre, 272,[link widoczny dla zalogowanych],000 mu panicle. Spike rate of 82.9o (Table 1), the single spike was higher than the control. That yield field with a low starting point, high spike characteristics. 3.1.3 Dry Matter Accumulation Index by different base Agricultural Sciences 2001 20 3 accumulation in the seedling dynamics of material (Table 2) showed that dry matter accumulation after heading and yield Y z was significantly correlated , y = 174.99 +0.794 x (r = 0.9793 a) Description. Cultivation should be used in the cultivation and reasonable measures. Maximize the amount of dry matter accumulation after heading. In order to achieve the purpose of increasing production. Huan Hua Fan 2 very basic car with seedling dry waxy essence dynamic knowledge Nang (kg / mu 3.2 Cultivation Cultivation techniques of the main goal should be the basis to ensure appropriate upside spike big spike, grain weight struggle, full Cephalostachyum tiller play Dahua strong spike rate characteristics. in output targets for the 650kg / mu, the spike can be identified as suitable for 25 to 27 million / acre. per panicle about 100 grains, grain weight 27g so. 3.2.1 Fitness of thin sowing, cultivating strong seedling age proved two years of cultivation, and the Soviet Union in the area in Huaibei, Dahua Cephalostachyum suitable sowing date should be mid-May on. To ensure strong seedling, need to reduce the sowing rate, the general drop-acre valley of the net amount of seedling plate around 25kg. seedling Honda ratio of 1: (7 ~ 8. before sowing with 25 species of Shi Bao Ke granted after germination. seedling applied earlier weaning of fat. How Relay fertilizer applied. good to see Tony the wedding of fertilizer applied. In addition,[link widoczny dla zalogowanych], we must also strengthen water management and insect pest prevention and control of slurry. Lee rational close planting, cultivating strong seedling 3.2.2. optimize planting density of population structure and reasonable arrangements, appropriate control of the peak Miao, reduce ineffective growth, enhance tillering and grain-leaf ratio, to benefit the formation of high yield. plot experiments and high-yield field investigation results showed that word. Dahua Cephalostachyum planting density control in 8 to 10 million / mu. easy to obtain reasonable group dynamics and more coordinated production structure. 3.2.3 Fertilization Irrigation Science Wing. improve the population quality of more than 650kg per mu output to be applied N18kg, P2O59.2kg, KO6kg, P and K should be noted that before the late rice growth with the application,[link widoczny dla zalogowanych], an appropriate increase late P, K fertilizer inputs. Nitrogen Application on the Basic Tillering and grain fertilizer to 5.5:4.5 or 6:4 ratio is better. In Shizujifei basis. early tillering fertilizer applied to promote early-onset . late fertilizer to focus on big spike attack. to reduce the amount of insurance fertilizers. in the Age of 3.5 leaves the remainder spikelet promotion when applied well, the number of leaf age from 1.5 to more than 1. Shih good security fertilizers. in order to increase dry after heading matter accumulation, leaf function extended period. anti-premature by weight. slurry of water management to achieve pre-ground irrigation for early onset shallow water. alternation of wet and dry mid-high stalk strong roots. humid irrigated late mature live to old age. 3.2. 4 pest control. to ensure high yield with Shi Bao Ke before sowing seed soaking, seedling rice thrips of attention to the prevention and treatment. 1 week before heading around 400g per mu for permanent use Jinggangmycin spray, to prevent sheath blight, rice Smut break to heading a one-time occurrence of comprehensive prevention medication false smut, rice blast.
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