Zvinhu Zvinokanganisa Kukura Kwezvirimwa
Zvirimwa zvinhu zvakakosha muzvinhu zvipenyu, zvichishanda semugadziri mukuru wechiedza chezuva kuita simba kuburikidza nekuita photosynthesis. Kukura kwavo nekukura kwavo zvinopesvedzerwa nezvinhu zvakawanda, kubva kuzvinhu zvemukati zvemajini kusvika kumamiriro ekunze enharaunda. Kunzwisisa zvinhu izvi kwakakosha kune vanoongorora zvirimwa, vanoongorora zvirimwa, uye vanoongorora zvakatipoteredza vachivavarira kuvandudza hutano nekubudirira kwezvirimwa. Chinyorwa chino chinoongorora zvinhu zvikuru zvinokanganisa kukura kwezvirimwa, zvakakamurwa muzvikamu zvezvakatipoteredza, biochemical, uye majini.
1.Environmental Factors
a. Chiedza
Chiedza ndicho chinhu chinonyanya kukosha pakuchengetedza nharaunda, zvichiita kuti photosynthesis ishande, nzira iyo zvirimwa zvinoshandura simba rechiedza kuita simba remakemikari. Miti yakasiyana ine zvinodiwa zvakasiyana-siyana zvechiedza. Semuenzaniso, zvirimwa zvinotsungirira mumvuri, zvakaita semafern, zvinokura zvakanaka mumamiriro ekunze asina chiedza, nepo zvirimwa zvinoda zuva, zvakaita semaringazuva, zvinoda chiedza chakawanda. Hunhu hwechiedza (wavelength), simba, uye photoperiod (nguva yekuratidzwa nechiedza) zvese zvinoita basa guru mukukura kwezvirimwa uye kutumbuka kwemaruva.
b. Mvura
Mvura inokosha pakurarama kwezvirimwa, inoshanda semushonga wezvinovaka muviri uye nzira yekuchinja kwemakemikari mumuviri. Inokoshawo pakumanikidzwa kwemhepo, izvo zvinochengetedza chimiro chayo uye kugadzikana. Kushaikwa kwemvura (kusanaya kwemvura) uye kuwanda kwemvura (kuwanda kwemvura) zvinogona kukanganisa kukura kwezvirimwa zvakanyanya. Kusanaya kwemvura kunotungamira mukushaya mvura mumuviri uye kukura kwenguva pfupi, nepo mamiriro emvura achigona kukonzera kushomeka kweokisijeni mumidzi, zvichikonzera kuora kwemidzi uye kudzikira kwekudya kunovaka muviri.
c. Tembiricha
Kupisa kunokanganisa mwero wekuchinja kwemuviri uye mashandiro ema enzymes mukati mezvirimwa. Zvirimwa zvakawanda zvine mwero wekupisa wakakodzera kuti zvikure. Kupisa kwakanyanya kunogona kumisa kukura; kwakanyanya uye ma enzymes anogona kukanganisa kukura, kuderera zvakanyanya uye mashandiro ekuchinja muviri anogona kunonoka. Zvimwe zvirimwa, senge zvirimwa zvemwaka wekutonhora (semuenzaniso sipinachi), zvinoda kupisa kwakaderera, nepo zvimwe (semuenzaniso, matomatisi) zvichikura zvakanaka mumamiriro ekunze anodziya.
d. Kuumbwa kwevhu
Ivhu rinoshanda senzvimbo yekuchengetedza mvura nezvinovaka muviri. Maumbirwo aro, kusanganisira magadzirirwo (huwandu hwejecha, silt, nevhu), chimiro, pH, uye huwandu hwezvinhu zvakasikwa, zvinokanganisa zvikuru kukura kwezvirimwa. Semuenzaniso, ivhu rejecha rine zvidimbu zvakakura uye rinobvumira mvura kuti ibude nekukurumidza asi rinogona kusachengetedza zvinovaka muviri zvakanaka. Kusiyana neizvi, ivhu revhu rinochengetedza mvura asi rinogona kukonzera kusapinda kwemhepo mumidzi. Zvakanaka, ivhu rakatsetseka rakaenzana rinotsigira kukura kwezvirimwa zvakanaka.
e. Zvinovaka Muviri
Zvirimwa zvinoda macronutrients akasiyana-siyana kuti zvikure. Macronutrients, akadai senitrogen (N), phosphorus (P), uye potassium (K), anodiwa muhuwandu hwakawanda. Nitrogen inokosha pakukura kwemashizha, phosphorus pakukura kwemidzi nemaruva, uye potassium pahutano hwezvirimwa uye kudzivirira zvirwere. Mamicronutrients akadai sesimbi (Fe), mhangura (Cu), uye zinc (Zn), kunyangwe zvichidikanwa muhuwandu hushoma, zvakakosha zvakaenzana pamabasa chaiwo emuviri.
2. Zvinhu Zvinokonzera Makemikoro
a. Mahormone
Mahormone emiti, kana kuti mahormone emiti, anodzora kukura uye kukura kwemuviri. Mahormone akakosha anosanganisira:
– Auxins: Inokurudzira kureba kwemasero, kutanga kwemidzi, uye kukura kwemichero.
– Gibberellins: Inokurudzira kureba kwehunde, kumera kwembeu, uye kutumbuka kwemaruva.
– Cytokinins: Inokurudzira kupatsanurwa kwemasero uye kuumbwa kwepfuti.
– Ethylene: Inokanganisa kuibva kwemichero uye kusaibva kwemashizha.
– Abscisic Acid (ABA): Inodzora kushushikana uye kusamira zvakanaka kwembeu.
b. Mazinga e pH
pH yevhu kana nzvimbo yekurima inogona kukanganisa zvakanyanya kuwanikwa kwezvinovaka muviri uye kunyudzwa kwezvinovaka muviri. Zvirimwa zvakawanda zvinosarudza pH ine acid zvishoma pane isina neutral (inenge 6.0 kusvika 7.0). Kutsauka kubva pane iyi mhando yakakodzera kunogona kukonzera kushomeka kwezvinovaka muviri kana chepfu. Semuenzaniso, muvhu rine acid yakawanda (pH yakaderera), zvinhu zvakaita sealuminium nemanganese zvinogona kunyungudika uye kuva nechepfu, nepo muvhu rine alkaline (pH yakakwira), zvinovaka muviri zvakakosha zvakaita sesimbi nephosphorus zvinogona kusawanikwa zvakanyanya.
c. Hukama Hwekubatana
Zvirimwa zvinowanzobatana muhukama hwekubatsirana hunogona kuwedzera kukura kwazvo. Semuenzaniso, howa dzemycorrhizal dzinoumba hukama nemidzi yemiti, zvichiita kuti zvinovaka muviri uye mvura zviwedzere. Mabhakitiriya anogadzirisa nitrojeni, anowanikwa mumapundu emidzi yembeu, anoshandura nitrogen yemumhepo kuita chimiro chinoshandiswa, zvichiwedzera kupfuma kwevhu uye zvinosimudzira hutano hwezvirimwa.
3. Genetic Factors
a. Mhando dzezvirimwa uye mhando dzakasiyana-siyana
Mhando dzakasiyana dzemiti nemarudzi adzo dzine majini akasiyana-siyana, izvo zvinosarudza kukura kwadzo, saizi, chimiro, uye kukwanisa kwadzo kuchinjika nemamiriro ekunze. Miti yakasanganiswa neyakagadziriswa majini inowanzo berekwa kuti iwedzere hunhu hwainodiwa senge kutsungirira zvirwere, kutsungirira kusanaya kwemvura, kana kuwedzera goho.
b. Maitiro Ekukura
Majini ndiwo anotungamira kukura kwezvirimwa uye kutenderera kwehupenyu hwazvo, kungave kuri kwemwaka, kwemakore maviri, kana kwekugara kwenguva refu. Zvibereko zvegore negore zvinopedzisa kutenderera kwazvo mukati megore rimwe, zvemakore maviri kwemakore maviri, uye zvemakore gumi nemaviri zvinorarama kwemakore akati wandei. Mafambiro aya anokanganisa hurongwa hwekudyara nemaitiro.
c. Kuramba Kushushikana
Kuburikidza nekuchinja majini, mimwe miriwo yave nekudzivirira kushushikana kwakadai, senge zvipembenene, zvirwere, uye mamiriro ekunze akaipisisa. Zvirongwa zvekuberekesa zvinowanzo tarisa pakuvandudza hunhu uhwu kuti hugadzire mhando dzemiti dzinogara kwenguva refu.
mhedziso
Kukura nekukura kwezvirimwa kunokanganiswa nekubatana kwakaoma kwezvinhu zvezvakatipoteredza, zvemakemikari, uye zvemajini. Nekunzwisisa nekugadzirisa zvinhu izvi, tinogona kugadzirisa hutano hwezvirimwa nekubudirira kwazvo, izvo zvakakosha pakurima, kurima, uye kuchengetedza zvakatipoteredza. Sezvo tsvakiridzo musainzi yezvirimwa ichifambira mberi, nzwisiso itsva uye matekinoroji zvicharamba zvichibuda, zvichiwedzera kuwedzera kugona kwedu kutsigira nekuchengetedza kukura kwezvirimwa munzvimbo dzakasiyana-siyana.
