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1、health. Whataresomeoftheproblemscausedbychemicalfertilizers?First,theydamagethelandbykillingthehelpfulbacteriaandpestsaswellastheharmfulones.Chemicalsalsostayinthegroundandundergroundwaterforalonogtime.Thisaffectscropsand,therefore,animalsandhumans,sincechemicalsgetinsidethec
2、ropsandcannotjustbewashedoff.Thesechemicalsinthefoodsupplybuildupinpeople’sbodiesovertime.Manyofthesechemicalscanleadtocancerorotherillnesses.Inaddition,fruit,vegetablesandotherfoodgrownwithchemicalfertilizersusuallygrowtoofasttobefullofmuchnutrition.Theymaylookbeautiful,buti
3、nsidethereisusuallymorewaterthanvitaminsandminerals. Withthesediscoveries,somefarmersandmanycustomersarebeginningtoturntoorganicfarming.Organicfarmingissimplyfarmingwithoutusinganychemicals.Theyfocusonkeepingtheirsoilrichandfreeofdisease.Ahealthysoilreducesdiseaseandhelpscrop
4、sgrowstrongandhealthy.Organicfarmers,therefore,oftenpreferusingnaturalwastefromanimalsasfertilizer.Theyfeelthatthismakesthesoilintheirfieldsricherinmineralsandsomorefertile.Thisalsokeepstheair,soil,waterandcropsfreefromchemicals. Organicfarmersalsousemanyothermethodstokeepthe
5、soilfertile.Theyoftenchangethekndofcropineachfieldeveryfewyears,forexample,growingcornorwheatandthenthenextyearpeasorsoybeans.Cropssuchaspeasorsoybeansputimportantmineralsbackintothesoil,makingitreadyforcropssuchaswheatorcornthatneedrichandfertilesoil.Organicfarmersalsoplantc
6、ropstousedifferentlevelsofsoil,forexample,plantingpeanutsthatusetheground’ssurfacefollowedbyvegetablesthatputdowndeeproots.Someorganicfarmerspreferplantinggrassbetweencropstopreventwindorwaterfromcarryingawaythesoil,andthenleavingitinthegroundtobecomeanaturalfertilizerforthen
7、extyear’scrop.Thesemanydifferentorganicfarmingmethodshavethesamegoal:togrowgoodfoodandavoiddamagingtheenvironmentorpeople’shealth. Anearlyfarmerpioneer SomepeoplethoughtJiaSixiewasaluckyman.Hehadworkedfortheemperorandwhenhegotold,hewasabletogohishometowntorelax.JiaSixie,howe
8、ver,hadotherplans.Hehadalwaysbeeninterestedinagricultureandintendedt
