Bio:
Email: 1185392832@qq.com
张丹丹(1992—),女,大学本科,农艺师,主要从事农业技术研究;1185392832@qq.com
为考察不同种植模式和种植密度对玉米株高、茎粗、叶片叶绿素相对含量(SPAD值)、产量等指标的影响,开展了田间试验。试验共设置6个处理,包括2种种植密度、3种种植模式(等行距、宽窄行、大等行距),以常规密度等行距处理为对照(CK)。结果表明:提高种植密度会降低玉米的茎粗、提高玉米的产量,其中增密等行距、增密宽窄行、增密大等行距处理的玉米产量分别比CK处理的提高25.0%、26.2%、12.3%;宽窄行种植模式可以减轻种植密度增加给玉米生长带来的不利影响。
Field experiments are conducted to investigate the effects of different planting modes and planting densities on maize plant height, stem thickness, chlorophyll relative content (SPAD value) of leaves, yield, and other indicators. Six treatments are set up in the experiment, including two planting densities and three planting modes (equal row spacing, wide narrow row spacing, large equal row spacing), with the conventional density equal row spacing treatment as the control (CK). The results show that increasing planting density can reduce the stem diameter of maize and increase yield. While the yield of the treatments with more densed equal row spacing, wide narrow row spacing, and large row spacing increased by 25.0%, 26.2%, and 12.3% respectively compared to the CK treatment. The wide narrow row spacing planting mode can improve the adverse effects of increased planting density on maize growth.
张吉旺, 胡昌浩, 王空军, 等. 种植密度对全株玉米饲用营养价值的影响[J]. 中国农业科学, 2005, 38(6): 1126-1131. doi:10.3321/j.issn:0578-1752.2005.06.009