| 底墒和氮肥对小麦抽穗后绿色叶面积参数的调控模型 |
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| 引用本文： | 李英,上官周平,陈培元,张春雷,薛青武,梁银丽. 底墒和氮肥对小麦抽穗后绿色叶面积参数的调控模型[J]. 西北农业学报, 1994, 3(1): 3-8 |
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| 作者姓名： | 李英 上官周平 陈培元 张春雷 薛青武 梁银丽 |
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| 作者单位： | 中国科学院西北水土保持研究所 陕西杨陵712100;中国科学院西北水土保持研究所 陕西杨陵712100;中国科学院西北水土保持研究所 陕西杨陵712100;中国科学院西北水土保持研究所 陕西杨陵712100;中国科学院西北水土保持研究所 陕西杨陵712100;中国科学院西北水土保持研究所 陕西杨陵712100 |
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| 摘 要： | 采用二因素二次饱和D-最优设计方法对小偃6号抽穗后绿叶面积动态变化进行了研究。结果表明,不同水肥措施对小麦抽穗后绿叶面积参数具有显着的调节作用,如不同处理绿叶持续天数为27～40天、绿叶持续期为9～22天、单茎最大绿叶面积为82～105cm2等;籽粒产量随绿叶持续期的延长而增加,与绿叶持续时间相关性不明显;小麦绿叶面积参数的优劣主要取决于氮肥的多少,底墒的调节作用有限;抽穗后维持较高绿叶面积和作用时间对提高产量具有重要意义。
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| 关 键 词： | 小麦 绿叶面积 氮肥 底墒 |
| 收稿时间： | 1993-04-09 |
| 修稿时间： | 1993-07-30 |
MATHEMATICAL MODEL STUDY ON EFFECTS OF NITROGEN AND SOIL MOISTURE BEFORE PLANTING ON GREEN LEAF AREA AFTER HEADING FOR WHEAT |
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| Li Ying,Shangguan Zhouping,Chen Peiyuan,Zhang chunlei,Xue Qingwu and Liang Yinli. MATHEMATICAL MODEL STUDY ON EFFECTS OF NITROGEN AND SOIL MOISTURE BEFORE PLANTING ON GREEN LEAF AREA AFTER HEADING FOR WHEAT[J]. Acta Agriculturae Boreali-occidentalis Sinica, 1994, 3(1): 3-8 |
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| Authors: | Li Ying Shangguan Zhouping Chen Peiyuan Zhang chunlei Xue Qingwu Liang Yinli |
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| Affiliation: | Northwestern Institute of Soil and Water Conservation, Academica Sinica Yangling Shaanxi 712100;Northwestern Institute of Soil and Water Conservation, Academica Sinica Yangling Shaanxi 712100;Northwestern Institute of Soil and Water Conservation, Academica Sinica Yangling Shaanxi 712100;Northwestern Institute of Soil and Water Conservation, Academica Sinica Yangling Shaanxi 712100;Northwestern Institute of Soil and Water Conservation, Academica Sinica Yangling Shaanxi 712100;Northwestern Institute of Soil and Water Conservation, Academica Sinica Yangling Shaanxi 712100 |
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| Abstract: | Effects of nitrogoli and soil moisture before planting on green leaf area after heading were stuied with optlmum design and computer technique.Establish the mathematlcal function of the pramencers of green leaf area for wheat.Analysing the effects of this factors on green lcaf area and duration time and defined the high yield culture way to regulate this index.The results indicated that different treatment of soil moisture and ntltrielits showed significantly regulation on the parameters of green leaf area after headillg for example,whole green leaf duration of different treatlnent chalige from 27 to 40 days,green leaf dtlration change from 9 to 22 days,and maximum leaf area of per plalit challge from 82 to 105 cm2.Grain yields is increasing with green leaf dtlration extending and nonsignificantly correlation with whole green leaf duration.Rugulation of nigtrogen take much more effect than soil moisture before planting on parameter of grecn leaf area.Green leaf area and duratioli time after hcading play an importallt role to increase grain yield. |
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| Keywords: | Wheat Green leaf area Nitrogen soil moisttlre before Planting |
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