CAJ | 학술논문

通过比较200～260粒/100 cm^27个播种密度下38 d秧龄的钵体毯状秧苗素质和移栽后缺穴率,结果表明：①播量越稀,秧苗素质越高,然而播量在200～240粒/100 cm^2的秧苗素质差异不大,播量高于240粒/100 cm^2,秧苗素质明显下滑;②播量从200粒/100 cm^2增加到260粒/100 cm^2,秧苗的缺穴率呈现先降低后增加的趋势。播量在210～250粒/100 cm^2,缺穴率变化较小。播量在220～230粒/100 cm^2,移栽的缺穴率最低。兼顾秧苗素质和缺穴率两方面考虑,寒地水稻钵体毯式育秧播量应该在220～230粒/100 cm^2比较适宜。
통과비교200～260립/100 cm^27개파충밀도하38 d앙령적발체담상앙묘소질화이재후결혈솔,결과표명：①파량월희,앙묘소질월고,연이파량재200～240립/100 cm^2적앙묘소질차이불대,파량고우240립/100 cm^2,앙묘소질명현하활;②파량종200립/100 cm^2증가도260립/100 cm^2,앙묘적결혈솔정현선강저후증가적추세。파량재210～250립/100 cm^2,결혈솔변화교소。파량재220～230립/100 cm^2,이재적결혈솔최저。겸고앙묘소질화결혈솔량방면고필,한지수도발체담식육앙파량응해재220～230립/100 cm^2비교괄의。
Seedling quality and the rate of missing holes of pot-mat seedling were reaearched under the condition of 7 different planting densities which from 200 grains/100 cm^2 to 260 grains/100 cm^2 and seedling age of 38 d, the result indicated： 1.lower sowing rate can achieve better seedlings quality, but the seeding quantity which from 200 grains/100 cm^2 to 240 grains/100 cm^2 were not significantly different, seedling quality began to decline significantly when the seeding quantity higher than 240 grains/ 100 cm^2, 2. the rate of missing holes is firstly increased and then decreased when the seeding quantity from 200 grains/100 cm^2 to 260 grains/100 cm^2, from 210 grains/100 cm^2 to 250 grains/100 cm^2, it had fewer changes on rate of missing holes. The lowest rate of missing holes can be achieved when the seeding quantity from 220 grains/100 cm^2 to 230 grains/100 cm^2. the optimize seeding quantity were 220-230 grains/100 cm^2 which balance the Seedling quality and the rate of missing holes.