ZHANG Yu.Effects of Different Horizontal Cropping Models on Agronomic Characters and Yield of Maize in the Central and Southern Areas of Heilongjiang Province[J].HEILONGJIANG AGRICULTURAL SCIENCES,2019,(03):1-3.[doi:10.11942/j.issn1002-2767.2019.03.0001]
黑龙江省中南部地区不同平作模式对玉米农艺性状和产量的影响
- Title:
-
Effects of Different Horizontal Cropping Models on Agronomic Characters and Yield of Maize in the Central and SouthernAreas of Heilongjiang Province
- 文献标志码:
- A
- 摘要:
- 为筛选适合黑龙江省中南部地区的玉米平作种植模式，在平作的条件下研究不同模式、密度对玉米产量及农艺性状的影响。结果表明：籽粒产量方面与对照比较，种植方式中A7（宽窄行45 cm+85 cm）、A8（宽窄行55 cm+75 cm）、A3（行距55 cm）分别提高产量5.9%、3.3%、0.9%，不同密度下产量排序为：B3（7.500万株hm-2）>B4（8.625万株hm-2）>B1（5.250万株hm-2）>B2（6.375万株hm-2）>B5（9.750万株hm-2），所有组合的籽粒产量比较，排在前三位：A8×B3，A7×B3，A8×B4；各农艺性状种植方式排序前三位的依次如下，穗长值：A7>A8>A1(CK)，穗粗值为A7>A8>A3，秃尖为A2(行距45 cm)>A4(行距65 cm)>A6(行距85 cm大垄模式)，穗行数为A7>A8>A3，行粒数为A7>A8>A1。不同密度下穗长、穗粗值、穗行数、行粒数排序为：B1>B2>B3>B4>B5，秃尖值排序为：B5>B4>B3>B2>B1。宽窄行处理A7（45 cm+85 cm）、A8（55 cm+75 cm）与种植密度在7.500万～8.625万株hm-2结合下，产量水平较对照增加明显，可综合获得最佳的农艺性状。
- Abstract:
- In order to select suitable flat cropping patterns in the central and southern part of Heilongjiang province,the effects of different patterns and densities on maize yield and agronomic traits were studied under flat cropping conditions.The results showed that the grain yield of A7(spacing 45 cm+85 cm),A8(spacing 55 cm+75 cm) and A3(spacing 55 cm)increased by 5.9%,3.3% and 0.9% compared with the control.The order of grain yield under different densities was B3(7500 plants?hm-2)>B4(86250 plantshm-2)>B1(52500 plantshm-2)>B2(63750 plantshm-2)>B5(97500 plantshm-2).The top three grain yields of all combinations were A8×B3,A7×B3 and A8×B4.The top three order of planting methods of agronomic traits were as follows: A7>A8>A1(CK),and A7>B7>A8>A1,respectively.A8>A3,bald tip: A2(spacing 45 cm)>A4(spacing 65 cm)>A6(spacing 85 cm),row number per panicle: A7>A8>A3,row number of grains: A7>A8>A1.The order of panicle length,panicle diameter,panicle row number and grain number per row under different densities was B1>B2>B3>B4>B5,and the order of bare tip value was B5>B4>B3>B2>B1.When A7(45 cm+85 cm),A8 (55 cm+75 cm) and planting density were combined with 75000-86250 million plants?hm-2,the yield level increased significantly compared with the control,and the best agronomic traits could be obtained synthetically.
参考文献/References:
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备注/Memo
收稿日期：2018-10-12