Study On Low Pile Ratooning Rice Cultivation Techniques

As the high pile ratoon rice output with less and uncertainty, also,can not be harvest by combine harvester,and other shortcomings, their large-scale production popularization was seriously restricted.To solve these problems, the seedling Cultivating and planting ways,plexus density, field density, water providing management, harvest maturity and stubble height was studied systematically,during the first quarter rice.And also, the fertilization ratio for sprout and seedling and the fertilized amount of nitrogen, during regeneration.All which might affect the production of ratoon rice.The results are as follows:1.To find out the the fertilization ratio for sprout and seedling, water providing management and harvest maturity how to affect the yield of the ratooning rice, a three-factor orthogonal experiment was carriedout,the results as follows:low pile ratooning rice chiefly need fertilizer during seedling,water providing management should be used the furrow planting,the best harvest maturity is nine.2.Under the conditions of middle soil fertility and a fixed ratio (N:P: K=1:0.3:0.5),the best amount of nitrogen fertilizer is 12kg/666.7m2.3.As long as the pile height was controled 5cm or lower, all different varieties can have access to a high degree of ratoon rice strains neat without hormones 920.4.It's helpful to improve the effective regeneration rate of ratooning rice by Tray seedling production and throwing.5.The best field density is 24,000 holes/666.7m2,and the best plexus density is 1 per-hole.6.The multi-point and multi-variety test shows:By Using the above-mentioned technical parameters of ratooning rice production,the first quarter rice and regeneration total production of every experimental variety is far beyond the single cropping of rice, individual species can even closer to the normal level of double cropping of rice.Summary, this new production technology of low pile ratooning cultivation is Superior than the current production technology of high pile ratooning cultivation, it is worth promoting.