扯秧留苗就是扯秧移栽时,在秧田中按一定的株行距留下秧苗直接培育成稻的一种栽培方法。过去,我县晚稻秧田产量总是低而不稳,亩产300斤左右。主要原因是插得迟,穗少、穗小、空壳多。为了改变秧田低产面貌,1977年我们在杂交晚稻秧田中进行扯秧留苗试验,以期变迟为早,变低产为高 Pull seedling seedling is pulling seedlings transplanting, in the seedling by a certain line spacing leave seedlings directly cultivated into a cultivation method of rice. In the past, my county late rice seedling production is always low and unstable, about 300 pounds per mu. The main reason is inserted late, spike less, spike, shell and more. In order to change the appearance of low-yielding seedling, in 1977, we conducted seedling raising in the late rice seedling hybrid experiment, in order to delay as early as the low yield is high