Pamusoro pekukanganisa kwakanyanya kana uchigadzira feterazers, nyanzvi dzekutanga kubva kuHurumende University of Mississippi, USA, Larry Oldham uye Eric Larson anoudzwa.
Fettilizer kupisa
Kana fertilizers yapinda pamwe chete nembeu kana padyo navo kana ichidyara, zvinokwanisika kupisa.
Mafetera mazhinji ari munyu anonyungudutswa mumvura inoenderana mumvura ine ivhu. Fungidzirai tafura yemunyu, iyo inopenya mumvura kune yakakodzera uye isina kunaka NA + nemazambiringa. Uku kupaza kunogadzira kudzvanywa kudonha, saka mvura inofamba kubva pakudyara midzi mumuvhu rakapoteredzwa (i.e. osmosis). Zvirimwa zvinogona kupera, kudzorera uye kufa nekushaikwa kwemvura. Izvi zvinonzi fettilizer kupisa uye zvinogona kutungamira mukurasikirwa kwakakosha kwekumera.
Aya mamiriro ezvinhu mukupararira kwechinyakare kwefeterezer haawanzo kuitika, sezvavanogoverwa kunzvimbo yakakura.
Saizvozvo, kutanga fetiraizer ine mashanu makompitwe emasendimita ari pamusoro uye mashanu cm pazasi inzira yakagadzirirwa kudzivirira kusangana nembeu. Zvinyoro-nyoro fetiraiza neyakaderera saline indekisi inofanira kushandiswa, senge amonium polyphosphate (10-34-0) kana orthophosphate. Vatengesi vezvitengesi uye vanopa mazano vanofanirwa kujaira mazano akakodzera eiyi application.
Amonia UpfuPaunenge uchishandisa imwe nitrogen fettiza, pane imwe njodzi yekukuvara, iyo inogona kutarisirwa kubva kune yega yemunyu kana Amoni akagoverwa kana achipinda muvhu.
Amonia ine chepfu uye inogona kupinda mumatanho akasununguka mumasero emirimwa.
Urea, Cas, ammonium thiosulfate uye diammoniumumphats
Iko kunakidzwa kweAmoni kunogona kukurumidza nekuda kweiyo yepamusoro ph kukosha kana muhuwandu hwevhu, kana semhedzisiro yekuita padyo nemafetiraiza akagadzirwa.
Mamiriro ekunze uye ivhu rakakoshaMamiriro ezvinhu ivhu akakosha kuona kuti nei kukuvara kungamuka mune mamwe makore, kwete kune vamwe.
Kukudzwa kwekukohwa kunonyanya kukwanisa kana mhodzi dzakura pane eshushi ivhu rine zvinhu zvakaderera zvezvinhu zvemagetsi zvakakanganiswa zvakananga nemafetiraiza.
Mamiriro ekunze akaoma anowedzera mukana wekukuvara. Munyama emvura, saltilizer munyu wakanyudzwa nekusiyana kubva pamitsetse, asi kusiyana hakuitike mune yakaoma ivhu. Yakatemerwa fettilizer inowedzera njodzi yekupisa.
Ivhu rine low low cation exchange kugona uye yakaderera organic zvinhu zvemukati zvisingakwanisi kuita zvishoma nezvevhu neivhu rakakwira rekuchinjana (zvakanaka).
Iyo idzo tembiricha zvakare iri chikamu chechinetso, sezvo midzi yacho ichikura zvishoma nezvishoma mune ivhu rinotonhora, uye ivo vakareba kufumurwa kune yakakwira kufambiswa.
(Kunobva: Westww.potertHopy.com. Vanyori: Larry Oldham uye Eric Larson, Mississippi State University).