| 杂交水稻高产栽培技术体系的研究 Ⅱ.晚季汕优63高产栽培的数学模型分析 |
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| 引用本文： | 林文雄,吴志强,梁义元,林积秀.杂交水稻高产栽培技术体系的研究 Ⅱ.晚季汕优63高产栽培的数学模型分析[J].福建农林大学学报(自然科学版),1989(3). |
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| 作者姓名： | 林文雄 吴志强 梁义元 林积秀 |
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| 作者单位： | 福建农学院农学系，福建农学院农学系，福建农学院农学系，永安市红田乡农技站 |
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| 摘 要： | 1986年晚季选取秧田播种量,本田基本苗数和 N,P,K 施用量5个因子,采用旋转回归设计在莆田埭里等农科站对汕优63进行试验.结果表明:(1)总粒数对产量的直接通径系数和净作用系数最大,而总粒数是通过主攻有效穗来实现的.(2)产量高于7.5t/ha 的栽培技术方案是每公顷稻田播种量240～265kg,本田基本苗数96.06～99.96×10~4;闽中南土壤肥力较高的稻田,每公顷施用 N,P,K 分别为131.25～141.75,54.75～57.00和84.00～92.25kg;中等肥力为159.45～164.25,72.60～88.05和108.45～121.05kg.1987年在莆田进行可行性论证,产量为6.87～7.74t/ha.
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| 关 键 词： | 杂交水稻 汕优63 高产栽培 数学模型 正交旋转回归设计 |
HIGH YIELDING CULTIVATION TECHNOLOGY SYSTEM OF HYBRID RICE Ⅱ.An Analysis of the Mathematical Model Adapted to the Late Season Cultivation with High Yield and Low Cost for Hybrid Rice Shanyou 63 |
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| Lin Wenxiong Wu Zhiqiang Lian Yiyuan Lin Jixiu.HIGH YIELDING CULTIVATION TECHNOLOGY SYSTEM OF HYBRID RICE Ⅱ.An Analysis of the Mathematical Model Adapted to the Late Season Cultivation with High Yield and Low Cost for Hybrid Rice Shanyou 63[J].Journal of Fujian Agricultural and Forestry University,1989(3). |
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| Authors: | Lin Wenxiong Wu Zhiqiang Lian Yiyuan Lin Jixiu |
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| Abstract: | A five factor experiment with five levels was conducted at the Dill Experimental Station,Putian,Fujian in 1986 in light of the design of orthogonal-gyrating-regression combination.Hybrid rice Shanyou 63 was used for a test material.The data were analysed by FO-3 computer,then several linear regression and nonlinear regression equations were established. According to the mathematical models,interactions between agronomic characteristics were described in detail.The results were as follows:(1) Analyses of path correlation showed that no.of total spikelets per ha.had the greatest effect on grain yield.No.of effective panicles was closely correlated with no.of total spikelets per ha.So,it is the key to increasing no.of effective panicles with optimum spikelets in hybrid rice Shanyou63. (2)Treatments with 240-265.5 kg sowing norm,96.05-99.96×10~4 seed- lings,131.25-141.75 kg N,54.75-57.00 kg P_2O_5,and 84-92.25 kg K_2O per ha.in paddy soil with higher level fertility or 159.45-164.25 kg N,72.60- 88.05 kg P_2O_5,and 108.45-121.06 kg K_2O per ha in paddy soil with medi- um level fertility would expected to gain a high yield and the best econo- mic effectiveness.The conclusions were satisficatorily verified at Putian, Fujian in 1987. |
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| Keywords: | hybrid rice Shanyou 63 high yielding cultivation technology mathematical model orthogonal-gyrating-regression design |
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