Physiological Lub luag hauj lwm ntawm Secondary Macronutrients nyob rau hauv Fruit Development
Thaum NPK inputs tsav tag nrho biomass, Medium element dej-soluble fertilizer inputs yog lub hauv paus txiav txim siab ntawm cov qauv kev ncaj ncees thiab post-sau zoo. Calcium yog qhov tseem ceeb tshaj plaws ntawm cov no, ua "cov kua nplaum" hauv nruab nrab lamella ntawm cov phab ntsa ntawm tes. Kev tsis txaus ntawm calcium thauj, feem ntau tshwm sim los ntawm kev hloov pauv tsis tu ncua, ua rau lub cev tsis zoo xws li Blossom End Rot (BER). Yog li ntawd, daim ntawv thov ntawm cov dej soluble calcium chiv tsis yog -negotiable nyob rau hauv solanaceous qoob loo. tshwj xeeb, dej soluble calcium rau txiv lws suav yuav tsum nyob rau hauv ib daim ntawv nitrate los xyuas kom meej xylem thauj sai mus rau cov txiv hmab txiv ntoo lub dab ntxuav tes, es tsis accumulating nyob rau hauv nplooj.
Magnesium thiab Sulfur ua si sib npaug lub luag haujlwm tseem ceeb hauv metabolic. Magnesium yog lub hauv paus atom ntawm chlorophyll molecule; Yog tsis muaj nws, photosynthesis nres tsis hais hnub ci muaj. High- cov kev pab cuam tawm los ua ke nrog dej soluble magnesium chiv kom muaj peev xwm ntawm nplooj nplooj photosynthetic thaum lub sij hawm hnyav hnyav. Nyob rau tib lub sijhawm, Sulfur xav tau rau kev sib txuas ntawm cov amino acids tseem ceeb xws li cysteine thiab methionine. Kev siv ammonium sulphate dej soluble chiv muab ib qho txiaj ntsig zoo dua: nws muab cov khoom siv tau yooj yim muaj sulfate-sulfur thiab ammonium-nitrogen, thaum tib lub sijhawm acidifying lub rhizosphere, uas tuaj yeem txhim kho qhov nce ntawm lwm cov kab hauv nruab nrab - mus rau -alka av. Sib npaug cov dej soluble micronutrients rau cov nroj tsuag nrog cov kev pab cuam macromineral yog qhov tseem ceeb rau kev ua kom muaj peev xwm ua tau zoo tshaj plaws.
