晉中旱地不同間作模式下作物產(chǎn)量與水分效應(yīng)研究.pdf

1、中國(guó)農(nóng)業(yè)科學(xué)院碩士學(xué)位論文晉中旱地不同間作模式下作物產(chǎn)量與水分效應(yīng)研究姓名：申正化申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：生態(tài)學(xué)指導(dǎo)教師：梅旭榮20080601AbstractThisresearchinvestigatedthesoilwaterthecropgrowthandwateruseefficiencyofcropusingthefieldtestundertheintercroppingpaRemsincludingtom—soybean

2、intercropping、corncabbageintercropping、corn‘milletintercroppingattheShouyangdryfarmingstationofShanxifromApriltoOctoberin2007Theexperimentalresultsshowedthat：1ThesoilwatervariesfromdifferentintercroppingpatternsThewaterc

3、onsumptionislowfortheirshallowrootsofsoybeanandcabbage，whichUSethesoilwaterunderthe0—100cmsoillayerHowevertheeffecttotIlesoilwaterreachesthedepthof3metersfortheirlongrootsofthecomandthemilletTherefore，Maizesoybeanintercr

4、oppingcouldmakefullUSeofthesoilwaterandlight、heat、airresources，andimprovewaterUSeefficiencybecauseoftheirhighlowstructureMaize—milletintercroppinghave80tI屺disadvantagebecausetheycancompetethesoilwaterdrasticallyfortheirh

5、ighwaterconsumptioninmaizeandmillet2Thereissimilarforthewaterconsuminglawbetweenthecropsinalltreatmentswhichshowedthecharacteristicsofthelowerwaterconsumptioninearliergrowingage、thehigherwaterconsumptioninmiddlegrowingag

6、eandthelowerwaterconsumptioninlatergrowingageThewaterUSeefficiencyofmaizeinintercroppingtreatmentsishigherthanthatinsolecroppingThewateruseefficiencyofmaizeinintercroppingtreatments(240cm：240cm)increasedby428％thanthatinm

7、onocultureThewaterUSeefficiencyofmaizeandmilletinintercroppingislowerthanthatinsolecropping3Theyieldincreasedsignificantlyundertheintercroppingpatterninthisresearch(1)Incornsoybeanintercroppingpattern，theyieldof(3：3)trea

8、tmentisthehighestandtheyieldofcomreached12671kg／hmz。whichincreasedby386％thanthatinsolecroppingTheyieldofsoybeanreached2493kg／hm2decreasedby67％thanthatinsolecropping(2)Incom—cabbageintercroppingpattern，theyieldof(240cm：24

9、0cm)treatmentisthehighestTheyieldofcornreached13391kg／hm。，increasedby465％thanthatinsolecroppingTheyieldofcabbagereached61006kg／hmz，decreasedby259％thanthatinsolecropping(3)Inthecorll—milletintercroppingpattern，theyieldof(

10、2：3)treatmentisthehighestTheyieldofcornreached12421kg&mz，increasedby35％thanthatinsolecroppingTheyieldofmilletreached43662kg／hmzdecreasedby243％thanthatinsolecropping4Withthecalculationofthepriceofthecorn(14RMB)，soybean(5R

11、MB)，wildcabbage(08RMB)，millet(32RMB)in2007，itisthehighesteconomicbenefitsinthecorncabbageintercroppingpatternAmongthemthesolecroppingofcabbagehasthehighestincomewhichis57285RMB／hmzThesolecroppingofsoybeanwithsingleplanti

12、nghasthelowestincomewhichis9659RMB／hmz5Comparedwiththeintercroppingeffectcoefficientofeveryintercroppingtreatment，wecanseethatthecornsoybeanintercroppingpatternwiththetreatmentof(3：3)hasthesignificantincreaseeffectonyiel