CN106416567A - 施氮量与密度对浏阳烤烟产质量的耦合效应试验方法 - Google Patents
施氮量与密度对浏阳烤烟产质量的耦合效应试验方法 Download PDFInfo
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 188
- 235000002637 Nicotiana tabacum Nutrition 0.000 title claims abstract description 99
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 94
- 241000208125 Nicotiana Species 0.000 title claims abstract description 86
- 238000000034 method Methods 0.000 title claims abstract description 77
- 230000001808 coupling effect Effects 0.000 title claims abstract description 23
- 238000012360 testing method Methods 0.000 title claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
- 241000196324 Embryophyta Species 0.000 claims abstract description 14
- 238000002474 experimental method Methods 0.000 claims abstract description 9
- 239000002689 soil Substances 0.000 claims abstract description 8
- 230000008569 process Effects 0.000 claims description 68
- 239000000126 substance Substances 0.000 claims description 27
- 239000003337 fertilizer Substances 0.000 claims description 17
- SNICXCGAKADSCV-JTQLQIEISA-N (-)-Nicotine Chemical compound CN1CCC[C@H]1C1=CC=CN=C1 SNICXCGAKADSCV-JTQLQIEISA-N 0.000 claims description 15
- 229960002715 nicotine Drugs 0.000 claims description 15
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Natural products CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 claims description 15
- 244000061176 Nicotiana tabacum Species 0.000 claims description 13
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 13
- 239000011591 potassium Substances 0.000 claims description 13
- 229910052700 potassium Inorganic materials 0.000 claims description 13
- 210000003608 fece Anatomy 0.000 claims description 12
- 239000010871 livestock manure Substances 0.000 claims description 12
- 239000000618 nitrogen fertilizer Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 238000010998 test method Methods 0.000 claims description 7
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 6
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 6
- 238000004458 analytical method Methods 0.000 claims description 6
- 239000002686 phosphate fertilizer Substances 0.000 claims description 6
- 229940072033 potash Drugs 0.000 claims description 6
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 6
- 235000015320 potassium carbonate Nutrition 0.000 claims description 6
- 240000007594 Oryza sativa Species 0.000 claims description 3
- 235000007164 Oryza sativa Nutrition 0.000 claims description 3
- 229920002472 Starch Polymers 0.000 claims description 3
- 239000004202 carbamide Substances 0.000 claims description 3
- 235000013877 carbamide Nutrition 0.000 claims description 3
- 238000011161 development Methods 0.000 claims description 3
- 238000007667 floating Methods 0.000 claims description 3
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 claims description 3
- 229910052939 potassium sulfate Inorganic materials 0.000 claims description 3
- 235000011151 potassium sulphates Nutrition 0.000 claims description 3
- 235000019698 starch Nutrition 0.000 claims description 3
- 239000008107 starch Substances 0.000 claims description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 2
- 235000009566 rice Nutrition 0.000 claims description 2
- 230000007480 spreading Effects 0.000 claims description 2
- 238000003892 spreading Methods 0.000 claims description 2
- 239000001506 calcium phosphate Substances 0.000 claims 1
- 229910000389 calcium phosphate Inorganic materials 0.000 claims 1
- 235000011010 calcium phosphates Nutrition 0.000 claims 1
- GVALZJMUIHGIMD-UHFFFAOYSA-H magnesium phosphate Chemical compound [Mg+2].[Mg+2].[Mg+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O GVALZJMUIHGIMD-UHFFFAOYSA-H 0.000 claims 1
- 239000004137 magnesium phosphate Substances 0.000 claims 1
- 229910000157 magnesium phosphate Inorganic materials 0.000 claims 1
- 229960002261 magnesium phosphate Drugs 0.000 claims 1
- 235000010994 magnesium phosphates Nutrition 0.000 claims 1
- 239000003513 alkali Substances 0.000 description 11
- 239000002585 base Substances 0.000 description 11
- 238000010168 coupling process Methods 0.000 description 11
- 238000005859 coupling reaction Methods 0.000 description 11
- NMLQNVRHVSWEGS-UHFFFAOYSA-N [Cl].[K] Chemical compound [Cl].[K] NMLQNVRHVSWEGS-UHFFFAOYSA-N 0.000 description 10
- 230000008878 coupling Effects 0.000 description 10
- 238000012545 processing Methods 0.000 description 8
- 235000019504 cigarettes Nutrition 0.000 description 7
- 238000011160 research Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 235000005979 Citrus limon Nutrition 0.000 description 1
- 244000131522 Citrus pyriformis Species 0.000 description 1
- LWNCNSOPVUCKJL-UHFFFAOYSA-N [Mg].[P] Chemical compound [Mg].[P] LWNCNSOPVUCKJL-UHFFFAOYSA-N 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- KMQAPZBMEMMKSS-UHFFFAOYSA-K calcium;magnesium;phosphate Chemical compound [Mg+2].[Ca+2].[O-]P([O-])([O-])=O KMQAPZBMEMMKSS-UHFFFAOYSA-K 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000013401 experimental design Methods 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000029553 photosynthesis Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C21/00—Methods of fertilising, sowing or planting
- A01C21/007—Determining fertilization requirements
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Abstract
本发明公开了施氮量与密度对浏阳烤烟产质量的耦合效应试验方法,该方法为探讨施氮量与移栽密度对长沙浏阳烟区烤烟经济性状与烟叶品质的耦合效应,供试品种G80,试验土壤为水稻土。在3个施氮量和3个密度下开展了双因素大田试验。综合来看,施氮量180kg/hm2和密度16500~18000株/hm2对浏阳烟区烤烟产量、产值和烟叶品质的耦合效应最佳。
Description
技术领域
本发明属于烟草培育技术领域,具体地说,涉及施氮量与密度对浏阳烤烟产质量的耦合效应试验方法。
背景技术
氮素是烟草生长发育和品质形成必需的营养元素。前人研究发现,氮素对烟草产量和品质影响很大,可直接影响烟叶内在成分的积累,适时适量的氮素供应才能提高烟叶产量和烟叶等级,但高氮肥下烟叶品质往往下降。种植密度是协调烤烟群体与个体矛盾,平衡产量和质量关系的重要因素之一,其通过影响有效截光面积、群体光合效能、田间微气象等影响到烤烟农艺性状和物质积累量。前人分别就烤烟的适宜密度、施氮量开展了大量的研究。毕文荣等研究表明,随着种植密度的增加,烟叶中烟碱、总氮、蛋白质含量均呈减小趋势,总糖、还原糖含量及糖碱比呈增加趋势。
施氮量和密度是烤烟生产中的两个重要因素,两者存在着协同而又制约的关系,故施肥量与密度的合理配比是获得烤烟优质适产的关键。前人就施氮量和密度的耦合也开展了大量研究,但各地条件不同导致研究结果差异巨大,如同样以NC89为材料,胡日华等在江西开展的试验表明施N 150kg/hm2为适宜施氮量,而胡克福等在信阳地区开展的试验表明最佳施氮量为90kg/hm2。可见,有关烤烟的适宜施氮量和密度与种植区域有密切关系,各地宜因地制宜地开展研究;同时,施氮量与密度的确定还必须考虑到品种间差异。浏阳市是长沙地区的重要产烟区,关于浏阳烤烟的施氮量问题,但多为单因素试验研究,在适宜密度以及密度与施氮量的耦合效应上尚未有系统研究,现有技术中还没有相关报道。
发明内容
本发明的目的在于弥补上述技术存在的空白,提供施氮量与密度对浏阳烤烟产质量的耦合效应试验方法,该方法以烤烟品种G80为材料,在浏阳永安研究了施氮量和密度对烤烟经济性状与烟叶化学成分的影响,旨在探讨浏阳烟区烤烟施氮量和种植密度的最佳组合,为当地烤烟优质适产高效栽培提供理论与技术支撑。
其具体技术方案为:
施氮量与密度对浏阳烤烟产质量的耦合效应试验方法,包括以下步骤:
步骤1、供试品种G80,试验土壤为水稻土,试验材料为烤烟品种G80,采用漂浮育苗,3月20号移栽,设施氮量和密度两因素试验,施氮量设3个水平:150kg/hm2、180kg/hm2、210kg/hm2;密度设3个处理:15 000株/hm2、16 500株/hm2、18 000株/hm2,各处理行距统一为1.2m,采用随机区组试验设计,9个处理,3次重复,小区面积25.2m2;
步骤2、施肥方法:氮肥肥源为专用基肥、专用追肥和尿素;磷肥肥源为专用基肥、钙镁磷肥;钾肥肥源为专用基肥、专用追肥、硫酸钾,40%的氮肥和全部磷肥作基肥,以穴施方式施入;剩余的钾肥和60%的氮肥作追肥,分三次施,在移栽后30d内施完,其他田间管理按优质烟叶开发生产技术规范实施;
步骤3、测定烤烟经济性状与烟叶化学成分。
进一步,步骤1中,施氮量180kg/hm2和密度16 500~18000株/hm2。
进一步,步骤3中所述经济性状:有效叶数、单叶重、单位叶面积重、亩产量、均价、亩产值和烟叶等级比例;
所述烟叶化学成分:从各处理初烤烟叶中选取上部叶B2F、中部叶C3F,用于化学成分分析,总糖、还原糖、淀粉、全钾、全氮、烟碱的含量,采用流动分析仪进行测定。
与现有技术相比,本发明的有益效果:
本发明以烤烟品种G80为材料,在浏阳永安研究了施氮量和密度对烤烟经济性状与烟叶化学成分的影响,旨在探讨浏阳烟区烤烟施氮量和种植密度的最佳组合,综合来看,施氮量180kg/hm2和密度16 500~18000株/hm2对浏阳烟区烤烟产量、产值和烟叶品质的耦合效应最佳。为当地烤烟优质适产高效栽培提供理论与技术支撑。
具体实施方式
下面结合具体实施例对本发明的技术方案作进一步详细地说明。
1材料与方法
1.1试验设计
试验于2014年在湖南省浏阳市永安镇永和村进行,供试品种G80,试验土壤为水稻土。试验材料为烤烟品种G80。采用漂浮育苗,3月20号移栽。设施氮量(A)和密度(B)两因素试验,施氮量设3个水平:150kg/hm2(A1)、180kg/hm2(A2)、210kg/hm2(A3);密度设3个处理:15 000株/hm2(B1)、16 500株/hm2(B2)、18 000株/hm2(B3),各处理行距统一为1.2米。采用随机区组试验设计,9个处理,3次重复,小区面积25.2m2。
施肥方法:氮肥肥源为专用基肥、专用追肥和尿素;磷肥肥源为专用基肥、钙镁磷肥;钾肥肥源为专用基肥、专用追肥、硫酸钾。40%的氮肥和全部磷肥作基肥,以穴施方式施入;剩余的钾肥和60%的氮肥作追肥,分三次施,在移栽后30d内施完。其他田间管理按优质烟叶开发生产技术规范实施。处理及处理代号见表1。
1.2测定项目与方法
经济性状:有效叶数、单叶重、单位叶面积重、亩产量、均价、亩产值和烟叶等级比例;
烟叶化学成分:从各处理初烤烟叶中选取上部叶(B2F)、中部叶(C3F),用于化学成分分析。总糖、还原糖、淀粉、全钾、全氮、烟碱等含量等,采用流动分析仪进行测定。
化学成分协调性:计算糖碱比、氮碱比、钾氯比等化学成分协调性指标。糖碱比即还原糖含量除以烟碱含量,氮碱比即总氮含量除以烟碱含量,钾氯比即钾含量除以氯含量。
表1大田试验处理
Table 1Treatments in this experiment
2结果与分析
2.1施氮量和密度对烤烟经济性状的影响
由表2可见,随着施氮量的增加,上等烟比例、产量、均价、产值均先升后降趋势,其中产量与产值在A2、A3、A1处理之间均具有显著差异;随密度的增加,上等烟比例下降,中等烟比例和下等烟略有上升,均价变化不大,产量与产值表现先增后降趋势,其中B2、B3处理差异不大但均显著高于B1处理。施氮量与密度耦合处理间经济性状差异显著,各施氮水平下均表现B1>B2>B3趋势,而中、下等烟比例表现趋势相反;耦合处理间产量、产值差异显著,A1施氮量处理下产量呈现随密度增大而提高的趋势,但A2、A3施氮量条件下趋势不同;各施氮量条件下产值均以B2处理最高。综合产值和产量分析,A2B2与A2B3处理表现较优。可见,为提高浏阳烟区烤烟产量与经济效益,以施氮量180kg/hm2和密度16 500~18000株/hm2的耦合效应最佳。
表2施氮量与密度对烤烟经济性状的耦合效应
Table 2The coupling effects of N application rate and density oneconomic traits of flue-cured tobacco
注:不同小写字母表示0.05水平显著差异。下同。
2.2施氮量和密度对烤烟烟叶物理性状的影响
2.2.1施氮量和密度对烤后烟叶单叶重与含梗率的影响
由表3可见,施氮量与密度对烤后烟叶单叶重与含梗率有明显影响。烤后烟叶单叶重随施氮量增大而提高,因密度增大而降低,中部叶和上部叶变化趋势基本一致;烤后烟叶含梗率随密度增大而增大,其中B3处理显著高于B1和B2处理,中部叶和上部叶变现一致;施氮量处理间烤后烟叶含梗率表现A3>A1>A2,且A3处理显著高于A2处理。施氮量与密度耦合处理间烤后烟叶单叶重与含梗率差异明显:上部烟叶单叶重以A3B1处理最大,显著高于其他处理,A2B1处理居其次,A1B2、A1B3和A3B3处理显著低于其他处理;中部烟叶单叶重也以A3B1处理最大,A2B1处理居其次,A1B2、A1B3和A2B3处理显著低于其他处理;上部烟叶和中部烟叶含梗率均以A3B3处理最大,A2B1、A2B2处理较低。可见,高氮低密耦合处理(A3B1处理)有利于提高烤后烟叶单叶重,而适中的施氮量与中低密度耦合处理(A2B1、A2B2处理)有利于降低烤后烟叶含梗率。
表3施氮量与密度对烤后烟叶单叶重与含梗率的耦合效应
Table 3The coupling effects of N application rate and density onphysical traits and appearance quality of cured leaves
2.2.2施氮量和密度对烤后烟叶外观质量的影响
综合上、中部烟叶,低施氮量(A1)条件下,烤后烟叶外观质量表现为:成熟、桔黄、色度中等-强、油分有-稍有、叶片结构疏松-尚疏松、身份稍薄-中等;高施氮量(A3)条件下,烤后烟叶外观质量表现为:尚熟-成熟、柠檬黄-桔黄、色度中等-强、油分稍有、叶片结构尚疏松-疏松、身份有稍薄-稍厚;中施氮量(A2)条件下,烤后烟叶外观质量一般表现为:成熟、桔黄、色度强、油分有-稍有、叶片结构疏松、身份中等。综合分析可见,外观质量表现最好的是处理A2B2。可见,密度处理间烤后烟叶外观质量差异较小,而施氮量对烤后烟叶外观质量影响较大,一般以适中施氮量处理烤后烟叶外观质量最好。
表4施氮量与密度对烤后烟叶外观质量的耦合效应
Table 4The coupling effects of N application rate and density onappearance quality of cured leaves
2.3施氮量和密度对烤后烟叶化学成分含量的影响
2.3.1施氮量和密度对烤后中部烟叶化学成分的影响
由表5可知,施氮量对烤后中部烟叶总糖、还原糖含量无显著影响,以A2处理略高;施氮量对烟碱、总氮、钾、氯含量有显著影响,其中,烟碱与总氮含量以A3处理最高,钾、氯含量以A2处理最高;糖碱比、氮碱比以A2处理最高,钾氯比以A1处理最高,A2处理最低。移栽密度对总氮含量无显著影响,对其他各指标影响显著,其中,B2处理烟碱与总氮含量最高,总糖、还原糖、氯含量最低,其钾含量也较低,其糖碱比与钾氯比最低,氮碱比最高。施氮量和密度耦合处理间各化学成分含量均有显著差异,其中,总糖和还原糖含量以A2B3、A3B1处理较高,烟碱含量以A1B2、A3B2处理较高,总氮含量以A3B1、A3B2处理较高,钾、氯含量以A2B3处理最高;施氮量和密度耦合处理间化学成分协调性也有显著差异,其中,糖碱比以A2B3处理最高(8.5),氮碱比以A2B3、A3B1、A2B1处理较高,钾氯比以A2B3和A2B1处理最低(10左右)。一般认为,优质烟叶要求糖碱比接近10、氮烟比0.8-1、钾氯比4-10。可见,综合烟碱、钾含量以及化学成分协调性指标,就中部烟叶来看,以A2B3处理烟叶化学品质最好,A2B1处理居其次。
表5施氮量与密度对烤后中部烟叶化学成分含量的耦合效应
Table 5The coupling effects of N application rate and density onchemical components in cured middle leaves
2.3.2施氮量和密度对烤后上部烟叶化学成分的影响
由表6可知,施氮量对烤后上部烟叶各化学成分均有显著影响,其中,A2、A3处理总糖、还原糖含量显著高于A1处理,烟碱、总氮含量以A2处理最高,钾、氯含量以A1处理最高;糖碱比、钾氯比以A3处理最大,A2处理最小,氮碱比以A1处理最大,A3处理最小。除氯含量意外,移栽密度对烤后烟叶化学成分有显著影响,其中,总糖、还原糖含量以B2处理最高,B3处理最低;烟碱含量以B3处理最高,B2处理最低;总氮含量以B1处理最高,钾含量以B2处理最低;糖碱比以B2处理最高,氮碱比以B1处理最高,钾氯比以其糖碱比与钾氯比最低,氮碱比以B3处理最高。
施氮量和密度耦合处理间各化学成分含量均有显著差异,其中,总糖和还原糖含量以A3B2最高,A2B2居其次;烟碱含量以A2B3、A2B1处理较高,总氮含量以A2B1最高,钾含量以A1B3处理最高,A1B1、A3B2、A2B1和A2B2处理居其次,氯含量以A1B1处理最高。施氮量和密度耦合处理间化学成分协调性也有显著差异,其中,糖碱比以A3B2处理最高(6.91),A2B2居其次(6.47);氮碱比以A1B1、A2B2、A2B1处理较高(最接近1),钾氯比以A3B2和A3B3处理最适宜(均为10.0),A2B2和A2B1处理居其次(接近10)。可见,参照优质烟叶要求,综合烟碱、钾含量以及化学成分协调性指标,就上部烟叶来看,以A2B2处理烟叶化学品质最好,A3B2处理居其次。
表6施氮量与密度对烤后上部烟叶化学成分含量的耦合效应
Table 6The coupling effects of N application rate and density onchemical components in cured upper leaves
以上所述,仅为本发明较佳的具体实施方式,本发明的保护范围不限于此,任何熟悉本技术领域的技术人员在本发明披露的技术范围内,可显而易见地得到的技术方案的简单变化或等效替换均落入本发明的保护范围内。
Claims (3)
1.施氮量与密度对浏阳烤烟产质量的耦合效应试验方法,其特征在于,包括以下步骤:
步骤1、供试品种G80,试验土壤为水稻土,试验材料为烤烟品种G80,采用漂浮育苗,3月20号移栽,设施氮量和密度两因素试验,施氮量设3个水平:150kg/hm2、180kg/hm2、210kg/hm2;密度设3个处理:15 000株/hm2、16 500株/hm2、18 000株/hm2,各处理行距统一为1.2m,采用随机区组试验设计,9个处理,3次重复,小区面积25.2m2;
步骤2、施肥方法:氮肥肥源为专用基肥、专用追肥和尿素;磷肥肥源为专用基肥、钙镁磷肥;钾肥肥源为专用基肥、专用追肥、硫酸钾,40%的氮肥和全部磷肥作基肥,以穴施方式施入;剩余的钾肥和60%的氮肥作追肥,分三次施,在移栽后30d内施完,其他田间管理按优质烟叶开发生产技术规范实施;
步骤3、测定烤烟经济性状与烟叶化学成分。
2.根据权利要求1所述的施氮量与密度对浏阳烤烟产质量的耦合效应试验方法,其特征在于,步骤1中,施氮量180kg/hm2和密度16 500~18000株/hm2。
3.根据权利要求1所述的施氮量与密度对浏阳烤烟产质量的耦合效应试验方法,其特征在于,步骤3中所述经济性状:有效叶数、单叶重、单位叶面积重、亩产量、均价、亩产值和烟叶等级比例;
所述烟叶化学成分:从各处理初烤烟叶中选取上部叶B2F、中部叶C3F,用于化学成分分析,总糖、还原糖、淀粉、全钾、全氮、烟碱的含量,采用流动分析仪进行测定。
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