水稻旱育小苗秧和常规育秧栽培性状的研究

Studied on the Culture Character of Rice Dry Nursery Seedling and Normal Seedling

以杂交稻汕优桂 99、博优 64为供试材料 ,研究了旱育小苗秧与常规育秧在某些农艺性状及产量效应等方面的差异。结果表明 :旱育小苗秧与常规育秧相比 ,旱育小苗秧具有早生快发、根系发达、植株健壮、生长势强、分蘖早、低位蘖多、有效穗多、结实率高、能提早抽穗、增产效果显著并具有省种、省工、省水、抗寒力强 ,利于抢季节 ,利于集约化育秧等优点 ,是一项值得应用推广的水稻高产栽培技术。

Hybrid rice combination SYG99and BY6 4were applied to study the difference between dry nursery seedling(DNS) and normal nursery seedling(NNS) on their agricultural character and yield effection.The results showed:dry nursery seedling has some character of new root brought out sooner and root system developed better,tiller early and quickly,more low tillers,more effective panicles and higher seed set.Heading earlier and yield obvious higher.Dry nursery seedling could save seed,labour,and water.It's ability of the cold resistantwas strong. So it could sow and plant early,seedling on a large scale.