| 水稻-二化螟系统模型研究 |
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| 引用本文： | 陈斌,吴蔚文,蒋书楠.水稻-二化螟系统模型研究[J].生态学报,1993,13(2):177-184. |
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| 作者姓名： | 陈斌 吴蔚文 蒋书楠 |
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| 作者单位： | 西南农业大学植保系，西南农业大学植保系，西南农业大学植保系 重庆，630716，重庆，630716，重庆，630716 |
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| 摘 要： | 选影响水稻-二化螟系统产量输出的主要环境要素:氮肥、磷肥、栽插密度、二化螟卵量和幼虫入侵时的叶龄,设计5因子5水平的二次正交旋转组合设计试验。建立了各要素与产量关系的数学模型:Y_Y=0.853-6.77x_1-4.47x_3-13.15x_4 5.92x_1x_3-11.36x_2x_4-5.85x_1~2-3.76x_3~2-4.29x_4~2±0.005;虫口主效应对产量损失的预测模型:Y_L=-13.15x_4-11.36x_2x_4-4.29x_4~2。通过对数学模型的分析得出在中等肥力田块,1m~2施纯氮3.75—7.5g和过磷酸钙75g作底肥,每丛插中苗2株,1m~2有4.05—8.1个卵时能得到0.825kg/m~2以上的高产。也建立了各因素与亩穗数的数学模型,并进行了分析讨论。
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| 关 键 词： | 水稻 二化螟 数学模型 |
| 收稿时间： | 1991/9/11 0:00:00 |
| 修稿时间： | 1992/10/10 0:00:00 |
MODEL FOR THE RELATIONSHIP BETWEEN THE RICEYIELD AND YIELD-AFFECTING FACTORS IN A RICEAND STEMBORER (CHILO SUPPRESSALISWALKER) SYSTEM |
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| Chen Bin.MODEL FOR THE RELATIONSHIP BETWEEN THE RICEYIELD AND YIELD-AFFECTING FACTORS IN A RICEAND STEMBORER (CHILO SUPPRESSALISWALKER) SYSTEM[J].Acta Ecologica Sinica,1993,13(2):177-184. |
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| Authors: | Chen Bin |
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| Institution: | Department of Plant Protection; Southwest Agricultural University Chongqing; 630716 |
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| Abstract: | The main environmental factors which can affect the yield of a rice and stemborer (Chilo suppressalis Walker) system, including nitrogenous fertilizer (x1), phosphate fertilizer (x2), density of transplanted seedling (x3), density of insect eggs (x4) and damage period (x5), were selected to carry out the experiments, based on an orthogonal and rotational design of quadratic regression at five different levels, in Baishiyi, Chongqing, in 1988. This has led to establishing two mathematical models: one for the... |
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| Keywords: | rice Chilo suppressalis Walker mathematical model |
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