| 种植密度和施氮量对粮饲兼用玉米雅玉8号产量的影响 |
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| 引用本文： | 赵勇, 杨文钰.种植密度和施氮量对粮饲兼用玉米雅玉8号产量的影响[J].玉米科学,2006,14(2):119-123. |
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| 作者姓名： | 赵勇 杨文钰 |
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| 作者单位： | 四川农业大学农学院,四川,雅安,625014 |
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| 基金项目： | 盆周山区农业可持续发展技术研究与示范，博士后培养基金(2004035700) |
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| 摘 要： | 研究了不同种植密度和施氮量对粮饲兼用玉米品种雅玉8号产量的影响。结果表明,雅玉8号的最佳种植密度为9.75万株/hm2,最佳施氮量为337.5kg/hm2,鲜物质产量达71032.10kg/hm2,干物质产量达22820.10kg/hm2,果穗干物质产量达11547.64kg/hm2。通过对种植密度和施氮量与生物产量之间的关系建立的回归模型预测可知,当种植密度为10.68万株/hm2、施氮量为273.48kg/hm2时能获得最高的鲜物质理论产量70798.72kg/hm2;当种植密度为11.13万株/hm2、施氮量为280.52kg/hm2时能获得最高的干物质理论产量22936.30kg/hm2。种植密度和施氮量对雅玉8号生物产量及果穗产量的影响均达极显著水平。
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| 关 键 词： | 粮饲兼用玉米 雅玉8号 种植密度 施氮量 产量 |
| 文章编号： | 1005-0906（2006）02-0119-05 |
| 收稿时间： | 2005-03-31 |
| 修稿时间： | 2005-04-12 |
Effects of Growing Density and Applying Nitrogenous Fertilizer Quantity on the Yield of Using both Cereals and Feed Maize Yayu No. 8 |
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| ZHAO Yong,YANG Wen-yu.Effects of Growing Density and Applying Nitrogenous Fertilizer Quantity on the Yield of Using both Cereals and Feed Maize Yayu No. 8[J].Journal of Maize Sciences,2006,14(2):119-123. |
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| Authors: | ZHAO Yong YANG Wen-yu |
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| Abstract: | This paper study the effects of different growing density and applying nitrogenous fertilizer quantity on the yield of using both cereals and feed maize Yayu No.8.The results showed that the best growing density and applying nitrogenous fertilizer quantity were 97.5 ten thousand plants/ha,337.5 kg/ha respectively,under the condition,the fresh matter yield,dry matter yield and dry matter yield of ear were separately 71 032.10 kg/ha,22 820.10 kg/ha,11 547.64 kg/ha.Knowing that the highest theoretic yield of fresh matter is 70 798.72 kg/ha when growing density and applying nitrogenous fertilizer quantity are individually 106.8 thousand plants/ha,273.48 kg/ha;and the highest theoretic yield of dry matter is 22 936.30 kg/ha when growing density and nitrogenous fertilizer quantity are separately 111.3 thousand plants/ha,280.52 kg/ha by forecast of regression model established through the relation between growing density and applying nitrogenous fertilizer quantity and biological yield.Effects of growing density and applying nitrogenous fertilizer quantity on the biological yield and fruit yield of Yayu No.8 both reach extremely marked level. |
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| Keywords: | Foodstuff maize Yayu No 8 Growing density Applying nitrogenous fertilizer quantity Yield |
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