| 寒地水稻钵体毯式育秧播种密度试验总结 |
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| 引用本文： | 柴楠,任淑娟,高向达.寒地水稻钵体毯式育秧播种密度试验总结[J].北方水稻,2012,42(4):29-30,46. |
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| 作者姓名： | 柴楠 任淑娟 高向达 |
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| 作者单位： | 1. 八五六农场现代农业研发中心,黑龙江虎林,158418
2. 八五零农场现代农业研发中心,,黑龙江虎林158418 |
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| 摘 要： | 通过比较200～260粒/100 cm27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 cm2的秧苗素质差异不大,播量高于240粒/100 cm2,秧苗素质明显下滑;②播量从200粒/100 cm2增加到260粒/100 cm2,秧苗的缺穴率呈现先降低后增加的趋势。播量在210～250粒/100 cm2,缺穴率变化较小。播量在220～230粒/100 cm2,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 cm2比较适宜。
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| 关 键 词： | 水稻 密度 秧苗素质 缺穴率 |
Summary on the Experiment of Planting Density by Pot-mat Seedling in Cold Area |
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| CHAI Nan,REN Shu-juan,GAO Xiang-da.Summary on the Experiment of Planting Density by Pot-mat Seedling in Cold Area[J].Reclaiming and Rice Cultivation,2012,42(4):29-30,46. |
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| Authors: | CHAI Nan REN Shu-juan GAO Xiang-da |
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| Institution: | 1 Modern Agriculture Development Center of 856th Farm,Hulin Heilongjiang 158418,China; 2 Modern Agriculture Development Center of 850th Farm,Hulin Heilongjiang 158418,China) |
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| Abstract: | 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 cm2 to 260 grains/100 cm2 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 cm2 to 240 grains/100 cm2 were not significantly different,seedling quality began to decline significantly when the seeding quantity higher than 240 grains/100 cm2,2.the rate of missing holes is firstly increased and then decreased when the seeding quantity from 200 grains/100 cm2 to 260 grains/100 cm2,from 210 grains/100 cm2 to 250 grains/100 cm2,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 cm2 to 230 grains/100 cm2.the optimize seeding quantity were 220-230 grains/100 cm2 which balance the Seedling quality and the rate of missing holes. |
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| Keywords: | Rice Density Seedling quality Rate of missing holes |
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