A Preliminary Study On the Growth Characteristics and Cultural Techniques of″Early Hybrid Rice-Ratoon Rice″ System
Shi Nenpu(The Agricultural Department of Fujian Province, 350003 )
With late-maturing.hybrid rices grown as the main crop and ratooned in the subsequent crop-ping, a new cropping system of″Early hybrid rice-Ratoon rice″was put forward in the double cropping riceareas of Fujian Province. It was experimentized and demonstrated in more than ten counties or cities of theprovince during 1991～1993. It was found that the new system could not only take fully advantage of thethermal and light resources of the areas, but also save labors, seeds, fertilizers and water and increase yieldand economic profit. Both crops of the new system could achieve a total yield of l5 t/ha with about 900$(RMB)(≈105 US＄)increased in a hectare. The growth characteristics and cultural corresponding tech-niques of the new cropping system were discussed in detail.