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水稻用旱育秧栽培具有秧苗矮壮、根系活力强、栽后起发快、分蘗旺盛等生长优势,而且还具有显著的省秧田、省种子、省工及增产增收的效果。与常规半旱育秧栽培相比,一般每亩大田可以增产稻谷50公斤左右,增产幅度在10%以上,节省用工1.5工左右,节省秧田60～80%,节省种子20～50%,共可增收节支100元左右。近年来,这项技术深受浙江省的广大农民的欢迎,应用面积迅速扩大,1996年全省应用面积达到250万亩。在早稻上推广应用这项技术,不仅增产效果显著,而且还可以解决常规育秧法育秧期遇低温发生烂秧,栽后遇低温发生僵苗等问题。早稻旱育秧栽培的关键是设法培育出矮壮秧苗并努力提高成秧率。现将早稻旱育秧培育壮秧的主要技术环节介绍如下:
The cultivation of rice with dry nursery stock has the advantages of strong seedling, strong root activity, rapid growth after tillering and strong tillering, and also has significant effects of saving seedling, saving seeds, saving labor and increasing yield and income. Compared with conventional semi-arid seedling cultivation, the yield per hectare can be increased by about 50 kg per acre and the yield increase is above 10%, saving 1.5 workers or so, saving 60-80% of the seedling and saving 20-50% of the total seed. Saving about 100 yuan. In recent years, this technology has been greatly welcomed by the vast number of peasants in Zhejiang Province. The area of application has rapidly expanded. In 1996, the province’s applied area reached 2.5 million mu. Popularization and application of this technology in early rice will not only increase the yield significantly, but also solve the problems such as rotting seedlings when cold seedlings grow in the conventional seedling raising and cold seedlings after planting. The key to early rice cultivation is to try to cultivate short sturdy seedlings and strive to improve the seedling rate. Now early rice nursery Yang Nui seedling nurturing the main technical aspects are described below: