《中文核心期刊要目总览》2004

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1、《中文核心期刊要目总览》(2004年版)　第一篇哲学、社会学、政治、法律、军事A/K综合性人文、社会科学B　哲学B9宗教C社会科学总论(统计学、社会学、人口学、管理学、人才学)C95民族学D政治学(D1，3，5国际政治、D2，4，6中国政治）D9法律E军事第二篇经济F综合性经济科学F0/2经济学F23会计F3农业经济F4/6（含F27）工业经济F7贸易经济F81财政F82/83/84货币/金融、银行/保险　第三篇文化、教育G0/2文化事业/信息与知识传播G25，35图书馆学，情报学G27档案学G3科学、科学研究G4教育G8体育H语言学

2、I文学J艺术K历史　whilethelawnisstillinagreatstageoflifeactivities,comparedwiththeprevioustwoperiods,lawnwaterrequirementsincreaseatthisstage,ifnottimelyirrigation,notonlyaffectthegrowthofgrass,alsocausesyellow.Atthisstage,accordingto4-5ofirrigation.Inshort,grasstypes,waterrequ

3、irementsaredifferent,youmustAccordingtotheclimateconditionsandplantspeciestodetermineirrigationofthelawn.Aboutaday,whenirrigationisbetterdependsonirrigation.Intheory,thesameperiodaslongastheamountofirrigationwaterislessthantheinfiltrationcapacityofthesoil,irrigationallt

4、hetimeinaday.Thendependsontheirrigationway.Ifintermittentintermittentsprayorsprayirrigation(highdegreeofatomization),irrigationisbestwiththeSun.Notonlycanaddmoisture,butalsosignificantlyimprovethemicroclimateandphotosynthesisandtranspirationandgasexchange,facilitatedthe

5、coordinationofwater,air,fertilizerandsoilthermalandvegetativeorgansofrootandrootexpansion,andcouldleadtheentiretransitstorageoftheplantmaterial,breathing,lawnsandlush.Ifusingwater,irrigation,andsoon,shouldbewatchingseason,earlyspring,lateautumnaroundtheheelaswellandther

6、esttaketwilightasmuch.(2)irrigationirrigationquantityshouldbebasedonthesoil,growing,grassandotherfactorstodetermine.Generallawngrowingseasondroughtperiod,takesaboutaweektopay20-40mm;vigorouslygrowinglawnintheheatandseveredroughtsituations,needtopay50-60mmperweekormore.I

7、nGeneral,regardlessofthemethod,shouldbeirrigatedmorethanonce,eachtimelesswater,maximumsurfacerunoffthatjustoccurred.2,fertilizingtomaintainlawndarkgreenleaves,grows,portionsmustbefertilized.Lawnplantsforleafgrowthandblossom-freerequirements,sonitrogenismoreimportant,res

8、ponsetonitrogenfertilizeristhemostobvious.Shouldbebasicapplication第四篇自然科学N/Q，T/X综合性科学技术N自然科学总论O1数学O3力学O4物理O6化学