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首页 > 学术期刊 > 果树打药雾化研究论文

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对于用弥雾机给果树打药这个问题回答各说不一,包括我们烟台这边的果农也对使用弥雾机褒贬不一,针对这个问题,我走访了几位果农,他们普遍反映,用弥雾机给果树打药效果比用别的喷雾式打药效果要好很多,其中,我的一位朋友叫王伟新,他的弥雾机叫"一桶油打六箱波尔多液",一听这名字,就说明他的弥雾机应该是质量最好、用途最广、效果最突出的,他家苹果多数被商家早早预订。根据这些情况,下面我从两个方面对弥雾机打药做一阐述。

一、用弥雾机给果树打药的五个优点。

第一个优点是落药点均匀。弥雾机喷雾后形成的药物颗粒仅有0.5微米,在空气中可以完全弥漫起来,保证果树的叶片正反两面都能落药,能够实现打药均匀、彻底,不留死角。

第二个优点是杀菌杀虫彻底。由于弥雾机打药实现了无空隙、立体式、全面化,病菌和害虫无藏身之处,杀菌杀虫彻底,对病虫害的防治效果显而易见。实践证明,使用弥雾机打药比普通喷雾器打药的苹果标光要高上一个档次。

第三个优点是省工省力。一亩地苹果树用普通喷雾器打药需要两到三个小时,而用弥雾机用不了半个小时,缩短作业时间,提高工作效率。

第四个优点是可以避开高温作业。果树打药的时间正值气温升高,使用弥雾机需要在凌晨三四点钟作业,可以避开高温,保证安全。

第五个优点是用药量减少。由于弥雾机呈雾状弥漫,农药的利用率提高,农药用量仅需普通喷雾器的三分之一,这样的苹果药残少,符合食品安全要求。

二、使用弥雾机感觉效果不好的三个原因。

一是生产弥雾机的厂家质量不过关。有些不良商家生产加工技术落后,或者偷工减料,生产的弥雾机不合标准,并且以次充好,高价销售,欺果农。

二是销售弥雾机的商家服务不到位。这部分商家不懂弥雾机的构造原理,仅仅以卖货挣钱为主,没有做好售后服务,果农不会正确使用,造成打药效果不好。

三是经营农药的店铺配药不合理。由于不懂弥雾机打药用量,一些经营农药的店铺在销售农药时,按照普通喷雾器的用量配药,造成用药过多,对苹果造成损害。

以上所述:用弥雾机打药,只要购买到正宗的产品、把握好农药的剂量、掌握好打药的时间、做好个人的安全防护,其效果应该远远高于其他喷雾器。

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1.Liu CY, Wang LJ, Wang JF, Wu BH, Liu W, Fan PG, Liang ZC, Li SH. 2013. Resveratrols in Vitis berry skins and leaves: Their extraction and analysis by HPLC. Food Chemestry.136: 643–6492.Ming R, van Buren R, Liu YL, Yang M, Han YP, Li LT, Zhang Q, Kim MJ, Schatz MC, Campbell M, Li JP, Bowers JE, Tang HB,Lyons E, Ferguson AN, Narzisi G,Nelson DR, Blaby-Haas CE, Gschwend AR, Jiao YN, Der JP, Zeng FC, Han J, Min XJ, Hudson KA, Singh R, Grennan AK, Karpowicz SJ, Watling JR, Ito K, Robinson SR, Hudson ME, Yu QY, Mockler TC, Carroll A, Zheng Y, Sunkar R, Jia RZ, Chen N, Arro J, Wai CM, Wafula E, Spence A, Han YN, Xu LM ,Zhang J, Peery R, Haus MJ, Xiong WW, Walsh JA, Wu J, Wang ML, Zhu YJ, Paull RE, Britt AB, Du CG, Downie SR, Schuler MA, Michael TP, Long SP,Ort DR, Schopf JW, Gang DR, Jiang N, Yandell M, de Pamphilis CW, Merchant SS, Paterson AH,Buchanan BB, Li SH and Shen-Miller J. 2013. Genome of the long-living sacred lotus (Nelumbo nucifera Gaertn.) Genome Biology, 14: R41.3.Chen S, Xiang Y, Deng J, Liu YL, Li SH. 2013. Simultaneous analysis of anthocyanin and non-anthocyanin flavonoid in various tissues of different lotus (Nelumbo) cultivars by HPLC-DAD-ESI-MS. PLoS ONE, 2013, 8(4): e62291.4.Chen S, Zheng Y, Fang JB, Liu YL,Li SH. 2013. Flavonoids in lotus (Nelumbo) leaves evaluated by HPLC–MSn at the germplasm level. Food Research Intertional, 54: 796–803.5.Niu N, Wu BH, Yang PF, Li SH. 2013. Comparative analysis of the dynamic proteomic profiles in berry skin between red and white grapes (Vitis vinifera L.) during fruit coloration. Scientia Horticultrea, 164: 238–248.6.Niu N, Cao YG, Duan W,Wu BH, Li SH. 2013. Proteomic analysis of grape berry skin responding to sunlight exclusion. Journal of Plant Physiology, 170: 748-757.7.Wang N, Zheng Y, Fang LC, Xin HP, Li SH. 2013. Comprehensive analysis of NAC domain transcription factor gene family in Vitis vinifera. Plant Cell Reporter, 32:61-75.8.Wang N, Xiang Y, Fang LC, Wang YJ, Xin HP, Li SH. 2013. Patterns of gene duplication and their contribution to expansion of gene families in grapevine. Plant Molecular Biology Reporter, 31:852–8619.Wang LJ, Xu M, Liu CY, Wang JF, Xi HF, Wu B., Loescher W, Duan W, Fan PG, Li SH. 2013. Resveratrols in grape berry skins and leaves in Vitis germplasm. PLoS ONE 8(4): e6164210.Wang LJ, Ma L, Xi HF, Duan W, Wang JF,Li SH. 2013. Individual and combined effects of CaCl2 and UV−C on the biosynthesis of resveratrols in grape leaves and berry skins. Journal of Agriculture and Food Chemistry, 2013,61:7135–714111.Wu BH, Zhao JB, Chen J, Xi HF, Jiang Q, Li SH. 2013. Maternal inheritance of sugars and acids in peach (P. persica (L.) Batsch) fruit. Euphytica, 189: 351-36412.Wu BH, Niu N, Li JH, Li SH. 2013. Leaf:fruit ratio affects the proteomic profile of grape berry skins. Journal of the American Society for Horticultural Science, 138:416–427.13.Li JH, Guan L, Fan PG, Li SH and Wu BH. 2013. Effect of sunlight exclusion at different phenological stages on anthocyanin accumulation in red grape clusters. American Journal of Enology and Viticulture, 64:349-356.14.Li JT, Wang N, Xin HP, Li SH. 2013. Overexpression of VaCBF4, a transcription factor from Vitis amurensis, improves cold tolerance accompanying increased resistance to drought and salinity in arabidopsis. Plant Molecular Biology Reporter, 31:1518–1528.15.Wu BH, Yang CX, Liang ZC, Liu W, Wang YY, Liu CY, Li SH. 2013. Inheritance of berry volatile compounds in two half-sib grape (Vitis vinifera) populations. Euphytica 189: 351-36416.Xin HP, Wu BH, Zhang HH, Wang CY, Li JT, Yang B, Li SH. 2013. Characterization of volatile compounds in flowers from four groups of sweet osmanthus (Osmanthus fragrans) cultivars. Canadian Journal of Plant Science, 93: 923-931.17.Xin HP, Zhu W, Wang L, Xiang Y, Fang LC, Li JT, Sun XM, Wang N, Londo J, Li SH. 2013. Genome wide transcriptional profile analysis of Vitis amurensis and V. vinifera in response to cold stress. PLoS ONE, 8(3): e58740. doi:10.1371/journal.pone.0058740.18.Xin HP, Zhang J, Zhu W, Wang N, Fan PG, Han YP, Ming R, Li SH. 2013. The effects of artificial selection on sugar metabolism and transporter genes in grape. Tree Genetics & Genomes. 9:1343–1349.19.Yan BF, Duan W,Liu GT, Xu HG,Wang LJ, Li SH. 2013. Response of bean (Vicia faba L.) plants to low sink demand by measuring the gas exchange rates and chlorophyll a fluorescence kinetics. PLoS ONE. 8(12): e80770.20.Yuan JH, Xu M, Duan W, Fan PG, Li SH. 2013. Effects of whole-root and half-root water stress on gas exchange and chlorophyll fluorescence parameters in apple trees. Journal of the American Society for Horticultural Science, 138:395–402.21.Zheng Y, Li JH, Xin HP, Wang N, Guan L, Wu BH, Li SH. 2013. Anthocyanin profile and gene expression in berry skin of two red V. vinifera grape cultivars that are sunlight-dependent versus -independent. Australian Journal of Grape and Wine Research, 19: 238-248.22.Guan L, Li JH, Fan PG, Chen S, Fang JB, Li SH, Wu BH. 2012. Anthocyanin accumulation in various organs of a teinturier cultivar (Vitis vinifera L.) during the growing season. American Journal of Enology and Viticulture, 63:177-18423.Liang ZC, Sang M, Wu BH, Ma AH, Zhao SJ, Zhong GY, Li SH. 2012. Inheritance of anthocyanin content in the ripe berries of a tetraploid 3 diploid grape cross population. Euphytica. 186:343–35624.Wu BH, Quilot B, Génard M, Li SH, Yang J, Wang YQ. 2012. Application of a SUGAR model to analyse sugar accumulation in peach cultivars that differ in glucose–fructose ratio. Journal of Agricultural Science,150:53–6325.Chen S, Fang LC, Xi HF, Guan L, Fang JB, Liu YL, Wu BH, Li SH. 2012. Simultaneous qualitative assessment and quantitative analysis of flavonoids in various tissues of lotus (Nelumbo nucifera) using high performance liquid chromatography coupled with triple quad mass spectrometry. Analytica Chimica Acta, 724:127– 13526.Chen S, Wu BH, Fang JB, Liu YL, Zhang HH, Fang LC, Guan L, Li SH. 2012. Analysis of flavonoids from lotus (Nelumbo nucifera) leaves using high performance liquid chromatography/photodiode array detector tandem electrospray ionization mass spectrometry and an extraction method optimized by orthogonal design. Journal of Chromatography A, 1227:145– 15327.Chai QQ, Wu BH, Liu WS, Wang LJ, Yang CX, Wang YJ, Fang JB, Liu YC, Li SH. 2012. Volatiles of plums evaluated by HS-SPME with GC-MS at the germplasm level. Food Chemistry, 130: 432-440.28.Wang N, Fang LC, Xin HP, Wang LJ, Li SH. 2012. Construction of a high-density genetic map for grape using next generation restriction-site associated DNA sequencing. BMC Plant Biology, 12:174-18329.Wu BH, Liu HF, Guan L, Fan PG, Li SH. 2011. Carbohydrate metabolism in grape cultivars that differ in sucrose accumulation. Vitis, 50: 51-5730.Chai QQ, Wu BH, Liu WS, Wang LJ, Yang CX, Wang YJ, Fang JB, Liu YC, Li SH.2011. Volatiles of plums evaluated by HS-SPME with GC–MS at the germplasm level. Food Chemistry, 130,(2):432-44031.Liang ZC, Sang M, Ma AH, Zhao SJ, Zhong GY, Li SH.2011. Inheritance of sugar and acid contents in the ripe berries of a tetraploid diploid grape cross population. Euphytica,182:251-25932.Luo HB, Ma L, Xi HF, Duan W, Li SH, Loescher W, Wang JF, Wang LJ. 2011. Photosynthetic responses to heat treatments at different temperature and following recovery in grapewine (Vitis amurensis L.) leaves. Plos one, 6(8): e2303333.Yan ST, Li XD, Li WD, Fan PG, Duan W, Li SH. 2011. Photosynthesis and chlorophyll fluorescence response to low sink demand of tubers and roots in Dahlia pinnata source leaves. Biologia Plantarum, 55 (1): 83-8934.Yang CX, Wang YJ, Wu BH, Fang JB, Li SH.2011. Volatile compounds evolution of three table grapes with different flavour during and after maturation. Food Chemistry,128: 823-83035.Liang ZC, Sang M, Fan PG, Wu BH, Wang LJ, Yang SH, Li SH. 2011.CIELAB coordinates in response to berry skin anthocyanins and their composition in vitis. Journal of Food Science, 76, (3):490-49736.Wang YJ, Yang CX, Liu CY, Xu M, Li SH, Yang L, and Wang YN.2010. Effects of bagging on volatiles and polyphenols in 'Wanmi' peaches during endocarp hardening and final fruit rapid growth stages. Journal of Food Science, 75(9): 455-46037.Wu BH, Li SH, Nosarzewski1 M., Archbold DD. Sorbitol Dehydrogenase gene expression and enzyme activity in apple: tissue specificity during bud development and response to rootstock vigor and growth manipulation. Journal of the American Society for Horticultural Science, 2010, 135: 379-38738.Fan PG, Li LS, Duan W, Li WD, Li SH.2010. Photosynthesis of young apple trees in response to low sink demand under different air temperatures. Tree Physiology, 30, 313–32540.Liu W, Liu CY, Yang CX, Wang LJ, Li SH. 2010. Effect of grape genotype and tissue type on callus growth and production of resveratrols and their piceids after UV-C irradiation. Food Chemistry, 122 : 475–48141.Wang LJ, Fan L, Wayne L, Duan W, Liu GJ, Cheng JS, Luo HB, Li SH. 2010. Salicylic acid alleviates decreases in photosynthesis under heat stress and accelerates recovery in grapevine leaves. BMC Plant Biology, 10:3442.Yang CX, Wang YJ, Liang ZC, Fan PG, Wu BH, Yang L, Wang YN, Li SH. 2009.Volatiles of grape berries evaluated at the germplasm level by headspace-SPME with GC–MS. Food Chemistry, 114 :1106–111443.Wang YJ, Yang CX, Li SH, Yang L, Wang YN, Zhao JB, Jiang Q. 2009. Volatile characteristics of 50 peaches and nectarines evaluated by HP–SPME with GC–MS. Food Chemistry, 116: 356–36444.Chen JF, Li Y, Wang ZF, Li JL, Jiang W, Li SH. 2009. High-sensitivity detection of fruit tree viruses using bacterial magnetic particles. Journal of Integrative Plant Biology, 51: 409–41345.Liang ZC, Yang CX, Yang J, Wu BH, Wang LJ, Cheng JS, Li SH. 2009. Inheritance of anthocyanins in berries of Vitis vinifera grapes. Euphytica,167:113–12546.Dai ZW, Vivin P, Robert T, Milin S, Li SH, Génard M. 2009. Model-based analysis of sugar accumulation in response to source–sink ratio and water supply in grape (Vitis vinifera) berries. Functional Plant Biology, 36: 527–54047.Li XD, Wu BH, Wang LJ, Zheng XB, Yan ST, Li SH. 2009. Changes in trans-resveratrol and other phenolic compounds in grape skin and seeds under low temperature storage after post-harvest UV-irradiation. Journal of Horticultural Science & Biotechnology, 84: 113–11848.Yoon JH, Yang D C., Liu DC, Song WS, Zhang AM, LI SH. 2009. Phylogenetic relationships among cultivars of Prunus persica based on internal transcribed spacer (ITS) sequences of nuclear ribosomal DNA. The Journal of Horticultural Science & Biotechnology, 84:167-17449.Yuan JH, Dai ZW, Zhao HY, Li SH.2009. Distribution of newly fixed C-photoassimilate under deficit irrigation and half-root stress in peach trees. Plant Science , 177:691–69750.Wang LJ, Loescher W, Duan W, Li WD, Yang SH, Li SH.2009. Heat acclimation induced acquired heat tolerance and cross adaptation in different grape cultivars: relationships to photosynthetic energy partitioning. Functional Plant Biology, 36:516–52651.Dai ZW, Génard M, Li SH and Vivin P. 2009. Analyzing the functional association among seed traits, berry growth and chemical composition in cabernet-sauvignon berry (Vitis cinifera L.) using a mathematical growth function. Journal International des Sciences de la Vigne et du Vin, 43: 35-4452.Duan W, Fan PG, Wang LJ, Li WD, Yan ST,Li SH. 2008. Photosynthetic response to low sink demand after fruit removal in relation to photoinhibition and photoprotection in peach trees. Tree Physiology, 28: 123–132.53.Liang ZC, Wu BH, Fan PG, Yang CX, Duan W, Zheng XB, Liu CY, Li SH. 2008. Anthocyanin composition and content in grape berry skin in Vitis germplasm. Food Chemistry, 111: 837-84454.Wu BH, Huang HQ, Fan PG, Li SH. 2008. Photosynthetic responses to sink–source manipulation in five peach cultivars varying in maturity date. Journal of the American Society for Horticultural Science, 133(2): 278–283.55.Zhao JY, Dai ZW, Li SH, Kong Y. 2008. Artificially-induced leaf nitrate accumulation affects photosynthesis in micropropagated apple plants with different water supply. Journal of Horticultural Science & Biotechnology, 83 (4) : 435–44056.Wang LJ and Li SH. 2008. Role of salicylic acid in postharvest physiology. Fresh Produce, 1-557.Liu WS, Liu DC, Feng CJ, Yang JM, Yoon J, Zhang AM, Li SH . 2007. Genetic diversity and phylogenetic relationships among plum germplasm resources in China assessed with Inter-simple sequence repeat (ISSR) markers. Journal of the American Society for Horticultural Science, 132 :619-628;58.Liu HF, Wu BH, Fan PG, Xu HY and Li SH . 2007. Inheritance of sugars and acids in berries of grape (Vitis vinifera L.). Euphytica, 153: 99-10759.Dai ZW, Wang LJ, Zhao JY, Fan PG, Li SH . 2007. Effect and after-effect of water stress on the distribution of newly fixed C-photoassimilate in micropropagated apple plants. Environmental and Experimental Botany ,60:484-49460.Li WD, Duan W, Fan PG, Yan ST, Li SH. 2007. Photosynthesis in response to sink-source activity in relation to the end products and metabolic enzymes in peach trees. Tree Physiology, 27: 1307-131861.Yang SH, Wang LJ, Li SH .2007. Ultraviolet-B irradiation–induced freezing tolerance in relation to antioxidant system in winter wheat (Triticum aestivum L.) leaves. Environmental and Experimental Botany, 60:300-30762.Yang JM, Meng QR, Liang YQ, Wang WF, Sun FZ, Zhao TC, Peng WX, Li SH. 2007. Effect of ice nucleation active bacteria on the physiology and ultrastructure of kernelled apricot floral organs. Journal of Horticultural Science & Biotechnology, 82: 563-57063.Yang SH, Wang LJ, Li SH, Duan W, Loescher W, Liang ZC.2007. The effects of UV-B radiation on photosynthesis in relation to Photosystem II photochemistry, thermal dissipation and antioxidant defenses in winter wheat (Triticum aestivum L.) seedlings at different growth temperatures. Functional Plant Biology, 34:907-91764.Wu BH, Génard M, Lobit P, Longuenesse JJ, Lescourret F, Habib R andLi SH. 2007. Analysis of citrate accumulation during peach fruit development via a model approach. Journal of Experimental Botany,58: 2583-259465.Li XD, Wu BH, Wang LJ, Li SH. 2006. Trans-resveratrol concentrations in seed and berry skin in Vitis evaluated at the germplasm level. Journal of Agricultural and Food Chemistry , 54: 8804-8811.66.Liu HF, Wu BH, Fan PG., Li SH, Li LS.2006. Sugar and acid concentrations in 98 grape cultivars analyzed by principal component analysis. Journal of the Science of Food and Agriculture, 86: 1526-1536.67.Liu WS, Liu DC, Feng CJ, Zhang AM, Li SH. 2006. Genetic diversity and phylogenetic relationships in plum germplasm resources revealed by RAPD markers. Journal of Horticultural Science & Biotechnology, 81:242-250.68.Wang LJ, Chen SJ, Kong WF, Li SH, Archbold D D. 2006. Salicylic acid pretreatment alleviates chilling injury and affects the antioxidant system and heat shock proteins of peach fruits during cold storage. Postharvest Biology and Technology, 41:244-251.69.Wang LJ, Li SH. 2006. Salicylic acid-induced heat or cold tolerance in relation to Ca2+ homeostasis and antioxidant systems in young grape plants. Plant Science. 170:685-694.70.Wang LJ, Li SH .2006. Thermotolerance and related antioxidant enzyme activities induced by heat acclimation and salicylic acid in grape (Vitis vinifera L.) leaves. Plant Growth Regulation, 48:137-144.71.Yoon J, Liu D, Song W, Liu W, Zhang AM, Li SH.2006. Genetic diversity and eco-geographical phylogenetic relationships among peach cultivars based on simple sequence repeat (SSR) markers,Journal of the American Society for Horticultural Science,131: 513-521.72.Zhao JY, Wang LJ, Fan PG, Dai ZW, Li SH.2006. Effect of half and whole root drying on photosynthesis, nitrate concentration, and nitrate reductase activity in roots and leaves of micropropagated apple plants. Journal of the American Society for Horticultural Science, 131:709-715朱亚静,李绍华,王红清,姜全(2005)果实的有无对桃叶片净光合效率及相关生理反应的影响 园艺学报,32:11-14李卫东, 李绍华, 吴本宏等 (2005). 果实不同发育阶段去果对桃源叶光合作用的影响.中国农业科学, 38(3): 565-570王利军,李绍华,李家永,杨树华,刘允芬,石玉林(2004)温度逆境交叉适应对葡萄叶片膜脂过氧化和细胞钙分布的影响.植物生态学报,28:326-332柴成林,李绍华,徐迎春,宋沅燮(2004)水分胁迫期间及胁迫解除后幼年桃树光合产物的分配.园艺学报,31:574-578王秀茹、薛进军、台社珍、张福锁、李绍华(2004)嫁接、环剥对铁在果树体内分配的影响.果树学报,21:603-605程福厚,李绍华,孟昭清(2003)调亏灌溉条件下鸭梨营养生长、产量和果实品质的研究.果树学报,20(1):22-26李绍华(2003)世界果树生产状况及提高我国果品市场竞争力对策.中国农业大学学报,8(1):7-13吴本宏,李绍华, Quilot B., Génard M., Kervella J.(2003)桃果皮毛、果肉颜色对果实糖酸含量的影响及相关性研究.中国农业科学,36(12):1540-1544方金豹,田莉莉,陈锦永,张威远,李绍华(2002)猕猴桃库源关系的变化对果实特性的影响.园艺学报,29(2):113-118刘国杰,宋国庆,李绍华,孟昭清,余克顺,祝军(2002)红富士苹果果实大小分布的早期预测研究. 果树学报,19:357-360李绍华,宋国庆,刘国杰,孟昭清,余克顺,祝军(2002)采收时红富士苹果果实大小早期预测的研究.中国农业科学,35:915-920李绍华,李明,刘国杰,孟昭清(2002)直立中央领导干树形条件下幼年苹果树体生长特性的研究.中国农业科学,35:826-830方金豹,黄宏文,李绍华(2002)CPPU对猕猴桃果实发育过程中糖/酸含量变化的影响.果树学报,19:235-239杨建民,孟庆瑞,彭伟秀,李绍华,孙福在,赵廷昌(2002)冰核细菌对杏花器官抗寒性的影响.园艺学报,29:20-24彭伟秀,杨建民,张芹,孟庆瑞,李绍华,孙福在,赵廷昌(2001)冰核细菌对仁用杏花粉超微结构的影响.园艺学报,28:453-456柴成林,李绍华, 徐迎春(2001)水分胁迫期间及胁迫解除后桃树源叶中碳水化合物代谢.植物生理学通讯,37:495-498徐迎春,李绍华,柴成林,刘国杰,陈尚武(2001)水分胁迫期间及胁迫解除后苹果树源叶碳同化物代谢规律的研究。果树学报,18:1-6薛进军,赵凤平,李绍华,张福锁(2000)果树断根铁素营养的研究.中国农业科学,33(5):60-64方金豹,李绍华(2000)CPPU对猕猴桃光合产物库源关系的影响.园艺学报,27(6)444-446方金豹,陈锦永,张威远,李绍华(2000)授粉和CPPU对猕猴桃内源激素水平及果实发育的影响.果树科学,17:192-196宋国庆, 肖兴国,陈尚武,李绍华, 甘孟侯(2000)鸡马立克氏病毒(MDV)B抗原基因在烟草中的初步表达.农业生物技术学报,8:143-146张潞生,李传友,贾建行,李绍华,王斌,肖兴国 (1999)猕猴桃雌雄性别的AFLP模板的制备. 果树科学,16:171-175李绍华,余克顺,孟昭清,罗国光(1999)植物器官体积变化连续测微法指导果树自动化灌溉合理指标的研究. 果树科学,16:165-170成钰厚,刘国杰,孟昭清,李绍华(1999)苹果成熟期间果皮花青素含量与果实品质的关系. 果树科学,16:98-103余克顺,李绍华,孟昭清,罗国光(1999)水分胁迫条件下几种果树茎干直径微变化规律的研究. 果树科学,16:86-91

117 评论

jennyzhao701

这种效果是特别好的,而且这种机器能够起到特别好的效果,而且也能够防止病虫害。

309 评论

JIE杰高升

(一)论文名称论文名称就是课题的名字第一,名称要准确、规范。准确就是论文的名称要把论文研究的问题是什么,研究的对象是什么交待清楚,论文的名称一定要和研究的内容相一致,不能太大,也不能太小,要准确地把你研究的对象、问题概括出来。第二,名称要简洁,不能太长。不管是论文或者课题,名称都不能太长,能不要的字就尽量不要,一般不要超过20个字。(二)论文研究的目的、意义研究的目的、意义也就是为什么要研究、研究它有什么价值。这一般可以先从现实需要方面去论述,指出现实当中存在这个问题,需要去研究,去解决,本论文的研究有什么实际作用,然后,再写论文的理论和学术价值。这些都要写得具体一点,有针对性一点,不能漫无边际地空喊口号。主要内容包括:⑴研究的有关背景(课题的提出):即根据什么、受什么启发而搞这项研究。⑵通过分析本地(校)的教育教学实际,指出为什么要研究该课题,研究的价值,要解决的问题。(三)本论文国内外研究的历史和现状(文献综述)规范些应该有,如果是小课题可以省略。一般包括:掌握其研究的广度、深度、已取得的成果;寻找有待进一步研究的问题,从而确定本课题研究的平台(起点)、研究的特色或突破点。(四)论文研究的指导思想指导思想就是在宏观上应坚持什么方向,符合什么要求等,这个方向或要求可以是哲学、政治理论,也可以是政府的教育发展规划,也可以是有关研究问题的指导性意见等。(五)论文写作的目标论文写作的目标也就是课题最后要达到的具体目的,要解决哪些具体问题,也就是本论文研究要达到的预定目标:即本论文写作的目标定位,确定目标时要紧扣课题,用词要准确、精练、明了。常见存在问题是:不写研究目标;目标扣题不紧;目标用词不准确;目标定得过高, 对预定的目标没有进行研究或无法进行研究。(六)论文的基本内容研究内容要更具体、明确。并且一个目标可能要通过几方面的研究内容来实现,他们不一定是一一对应的关系。大家在确定研究内容的时候,往往考虑的不是很具体,写出来的研究内容特别笼统、模糊,把写作的目的、意义当作研究内容。基本内容一般包括:⑴对论文名称的界说。应尽可能明确三点:研究的对象、研究的问题、研究的方法。⑵本论文写作有关的理论、名词、术语、概念的界说。(七)论文写作的方法具体的写作方法可从下面选定: 观察法、调查法、实验法、经验总结法、 个案法、比较研究法、文献资料法等。(八)论文写作的步骤论文写作的步骤,也就是论文写作在时间和顺序上的安排。论文写作的步骤要充分考虑研究内容的相互关系和难易程度,一般情况下,都是从基础问题开始,分阶段进行,每个阶段从什么时间开始,至什么时间结束都要有规定。课题研究的主要步骤和时间安排包括:整个研究拟分为哪几个阶段;各阶段的起止时间。

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