共查询到20条相似文献，搜索用时 31 毫秒
1.
《延边大学农学学报》1986,(2)
农学寒冷地区水稻高产栽培体系的研究(I) —播种量及栽植密度模式的研究···························……金润植寒冷地区水稻高产栽培体系的研究(l) —不同肥密条件对水稻产量的效应试验··················……安东文玉米杂交种的一些生理生态性状的 杂种优势及其相关性的研究·······,···················……蒋基建法比安不同肥力条件下大豆品种产量因素的分折························……金伦范用模糊矩阵对待推品种进行多指标的综合… 相似文献
2.
《金陵科技学院学报》1994,(4)
第1期(总第19期)·试验研究·南京丘陵农区发展庭园经济的策略、原则和经营模式的研究·········……邱益三于树璋蔡炳英(1)南京城郊蔬菜食用部位含氯量的现状调查·,···················……管建国宋佩扬潘透琴洛如生(7)四棱豆在南京引种的研究······················~······························……张道宽管建国周荣刚帆2)着草的组织培养研究初报····························,··········,········… 相似文献
3.
《湖南农业大学学报(自然科学版)》1987,(4)
农学稻米营养品质的研究 11糙米粗蛋白质含最的品种(组合)问差异及与农艺性状的关系·································……徐庆国(l):l~10甜玉米二号引种观察试脸初报·················································································……张秀羽(l)=11~18 棉花规范化栽培研究 I:有产棉花的根重、生物学产且和籽棉产且的相关分析·······························… 相似文献
4.
《湖南农业大学学报(自然科学版)》1993,20(6)
第1期基础科学平面自治系统极限环的存在性及解的有界性························……李森林黄立宏(1)二阶中立型泛函微分方程非振动解的存在性定理·······~·····················……庚建设(9)关于泛函的一些性质·······························································……黄践(l2)泛函‘(一“)一丁。(!,“,少“)d二极刁、点的部分正则性··················……刘宪高(18)无界滞量二阶… 相似文献
5.
《华中农业大学学报》1986,(4)
农玉米花粉剥离扫描观察·····································································……(1水稻叶片衰老的研究1.叶片衰老期间叶绿素、脯氨酸及乙烯产量的变化···……(1油菜素内醋和赤霉素对小麦初期生长反应的比较····································……(l些麻不同群体结构的光合作用和产量形成1.群体的构成与光合性状·········……(1竺麻的光合特性及其与纤维产量和品质的关系·········… 相似文献
6.
《华中农业大学学报》1992,11(4)
绮落l期再论光敏核不育水稻育性转换的光温作用模式···························……张自国等(l)光敏核不育水稻两个光周期反应的遗传研究······························……张自国等(7)水稻无融合生殖研究的进展····················……,.’’··········……蔡得田陈冬玲(15)多胚水稻多胚类型的研究···················································……孙蒙祥等(21)小麦幼胚愈伤组织… 相似文献
8.
张四保 《西南大学学报(自然科学版)》2019,41(12):50-56
令n是一正整数,φe（n）为广义Euler函数.广义Euler函数φe（n）与莫比乌斯函数μ（n）有着密切的关系.利用广义Euler函数φ6（n）的计算公式与分类讨论的方式讨论了广义Euler函数方程φ6（n）=n/d的可解性,给出了该方程正整数解的情况,其中d是n的正因数. 相似文献
9.
《山东农业大学学报(自然科学版)》1991,(4)
作物小麦数t性状的基因效应分析······、····························”····”·················……胡延吉棉花纤维品质育种中纤维长度整齐度问题的探讨··“················”··……刘继华于凤英等山东省50年代以来小麦品种性状演变的研究······························……陈化榜李晴棋土壤水分对冬小麦根系的影响·····”··,·············”··········”··……刘殿英黄炳如黄庆裕干早对大… 相似文献
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11.
《新疆农业大学学报》1987,(4)
第一期论新疆地下水资源的合理开发利用················,···········································……(1)弹性地基板的简化计算法········································································……(6)天山北坡地区的产流方式·············。····································,·····················… 相似文献
12.
《上海交通大学学报(农业科学版)》1987,(4)
农学 期页用醋酶同工酶分析亚洲栽培稻不同生态型的亲缘关系······························……(1),(15)高产优质糯稻品系“上农香糯”的选育··……‘··········································……(1),(25)上海市豆制品的大豆原料供应问题的调研报告·······································……(l),(31)蚕豆(vicia faba L.)开花结荚习性的观察································… 相似文献
13.
《华中农业大学学报》1987,(4)
第1期选择指数的快速算法及其程序·······,···············,············……,’’············,··…刘定富(l)油菜素内醋对水稻幼苗生长及耐冷性的影响···············……周爱清骆炳山任筱波(8)组织培养快速繁殖鸡冠花嵌合体······································~·····……察得田金幸(血)剪枝栗实象的生物学特性及其防治的研究··························~·····……陈吉忠徐速(18)几种拟… 相似文献
14.
《新疆农业大学学报》1990,(4)
第一期天山中东部天山云杉林窗更新的灰色决策···········································……(l)线性最小均方法误差的比率估计················,·····································……(9)回归自变量的选择:Cp准则所有变量子集的回归·································……(13)界址点误差对面积精度的影响········································… 相似文献
15.
为简单、方便、准确地估算我国亚热带森林生态系统中具有重要生态价值和多种经济用途的优良乡土阔叶树种刨花楠Machilus pauhoi的生物量,以冠幅（C）、地径（D）和株高 (H) 3个形态因子作为变量,运用回归分析和模型选优的方法建立了单株刨花楠幼苗叶、茎、根和总生物量的最佳估测数学模型.结果表明: CH、C2H 复合变量与生物量相关性较好,以CH、C2H 为自变量的乘幂曲线回归模型W=b0xb1为刨花楠幼苗的最佳生物量估测模型,与常用的 D2H 作为变量的生物量模型相比,精度基本一致,但工作简便性更好.但在植株密度差异较大或估算大个体刨花楠生物量时应做进一步的验证. 相似文献
16.
《黑龙江八一农垦大学学报》2004,16(4):113-114
农学黑龙江省几个玉米杂交种氮效率差异的分析·········································································冯学民,向春阳,田秀萍,等(1.1)不同施肥处理对连作大豆土壤无机磷组分及作物产量的影响·············································张德俭,马艳梅,田秀萍,等(1.7)辣椒疫霉菌产毒培养方式和提取方法的研究······································… 相似文献
17.
《扬州大学学报(农业与生命科学版)》1991,(4)
〔第1期〕用非放射性的Digoxigcnin标记的DNA探针检出马立克病病毒DNA·················…….崔治中等(1)海门山羊超排及血浆孕酮和17刀一雌二醉浓度················”··························一·····……毛九德等(7)小鼠2一细胞期胚胎融合及其发育能力的研究···········································一·,·····一一李碧春等(”)sPF小白鼠及香猪翠丸实质内注射乙碘油对性行为和精子的影响·········… 相似文献
18.
《延边大学农学学报》1982,(3)
农水稻感光性的遗传分析·······································……黄永秀木下俊郎水稻冷害诊断技术的研究·······································……朴昌一许哲鹤大棚盘育苗主茎各位叶的形态比较·······································……安东文秋子梨抗寒力在梨种间杂交后代的遗传·········……贾立邦丁丽华林风起三十年来粕粳稻杂交育种研究的回顾与展望(提要)···············… 相似文献
19.
《上海交通大学学报(农业科学版)》1984,(2)
农学 题目期页三熟制后季稻移栽期的研究第二报移栽期和光能利用及物质运转的关系……(1):(21)蚕豆的花芽分化及温度对它的影响······················································……(l),(29)蚕豆结实率高低与碳氮代谢的关系······················································……(1),(33)水稻简易工厂化育秧的研究·······“······..····························,·… 相似文献
20.
《农业环境科学学报》1985,(6)
以卜护今 第一期目录发展污水综合利用和净化型的生态农业············……,’’················,·············································……王宝贞(1)土壤的重金属污染间题········································································································……夏荣荃(6)三抓乙酸对土壤生态的影响及微生物的降… 相似文献