ND Corn K Calculator

NDSU Soil Science

Mayelana nalolu hlelo lokusebenza

Potassium ukutholakala izitshalo ithi ukuba yinkimbinkimbi kakhudlwana kunokuba abantu abaningi beqaphela. Nakuba lo yinkimbinkimbi N kwezitshalo umsoco ngokuyinhloko eziphila-based, K umsoco kuhilela lukhulu yokuthakwa kwamakhemikhali emzimbeni kanye esincane biology. Lolu wokubala umvuthwandaba kweminyaka emithathu besebenza ngu esihle yami iziqu abafundi Manbir Rakkar, noJohane Breker, kanye Honggang Bu (futhi unjiniyela wale App), Lakesh Sharma (Research / Ukufundisa / Isandiso at Univ. Maine, Aroostook ), Eric Schultz futhi Drs. Tom DeSutter futhi Amit Chatterjee at NDSU Isayensi Yenhlabathi.
Kwacaca izimoto kule minyaka emibili nesomile izifundo K isilinganiso (2015 no 2016) ukuthi odlule ezibucayi ukuhlolwa kwenhlabathi ezingeni K (150 ppm) kwakungeyona inkinga ku abangaphezu kwesigamu amasayithi sasebenza e Richland, Cass, Sargent, futhi i-Barnes izifunda. Ukumba ujule K ukutholakala isayensi, indima ubumba chemistry khona potassium feldspar ku amaminerali inhlabathi amafraktjhini zaba imithombo okungenzeka abanye ongaphakeme ukuhlolwa amasayithi engenakho ukukhushulwa isivuno nge K, nangaphezulu ukuhlolwa amasayithi ukuhlinzeka ezinkulu isivuno inzuzo ngenxa K. Ngenxa yalokho lezi Izibuyekezo izincwadi nokuya esahlela ingqungquthela K ngesikhathi American Society of emihlanganweni Namahlathi e ngo-2015, iphethe isihluthulelo inothi isikhulumi sabonisa ukuthi umcwaningi K Don Sparks kusukela Univ. ka Delaware, ngahambisa amasampuli UMTHETHO Laboratories, Ltd e-Ontario, eCanada ukuqedela ubumba speciation nokuzimisela potassium feldspar. Ngo-2017, ngenxa isampula kusuka yami PhD iziqu umfundi Chris Augustin (futhi Isandiso Soil Health Uchwepheshe ngesikhathi North Central R & E Centre) ukuthi wabuya esephethe okunye okuqukethwe ubumba illite ukwedlula noma yini engake wayeke kubonakala SE North Dakota ngazimela isimo eziningana Kunabantu abaye -wide ukuze abuthele amasampula ebusweni inhlabathi georeferenced kusuka amaqembu ayinhloko amabili kuya kwamathathu inhlabathi kuwo wonke umbuso e North Dakota. Lezi Kwathunyelwa UMTHETHO labs ahlolwe. Amanani umphumela amaphesenti Smectite futhi amaphesenti Illite abangu esikuyi njengoba smectite / isilinganiso illite noma okungaphezulu kophawu noma esingaphansi 3.5, okuyinto engiluthulile ukubaluleka isilinganiso kangcono wachaza corn isivuno izimpendulo esifundweni sethu.
I izincomo lokusebenza futhi uqale nge 60 lb / acre K2O, okuyinto 100 lb / acre 0-0-60 ezomile granule umquba. Izicelo ngezansi kwalesi silinganiso kwakungafanele ngempumelelo kunoma iyiphi ukubuya kwezomnotho ukuze K, ngaleyo ndlela ngesilinganiso aphansi akakaze Kunconywa. Lokhu kungase kube ngenxa granule ukusatshalaliswa phakathi izitshalo corn ngabanye. Kungenzeka ukuthi uketshezi K izixazululo kungase kuphumelele kangcono ngamanani aphansi, kodwa asizange usihlole. Khumbula ukuthi kwalabo abatholako K ngu corn ngesizini siyafana N, ngaleso ezithela lanamuhla mkhulu kuka-200 lb isitshalo ukudla elingamahektare ngayinye, ngakho amanani aphansi ngempela wayengeke alindele ukuba effect okuningi. Siphinde sathola ukuthi amazinga okukhulu kuka-200 lb / acre 0-0-60 (120 lb / elingamahektare K2O) kwehle isivuno kusukela isivuno isiqongo atholakala ngesilinganiso 200 lb / elingamahektare, ngakho izinga K kule wokubala 120 lb / elingamahektare K2O, noma 200 lb / elingamahektare 0-0-60. Nakuba Angazi batusa uhlelo ukugcwala K ngenxa imvelo yethu iffy, uma umlimi ekhetha ukwakha amazinga inhlabathi, efaka umquba izitshalo nezinye ukujikeleza njengoba ehlonipha 200 lb / elingamahektare 0-0-60 umkhawulo kungaba ukhetho best.
Khumbula ukuthi nenhlabathi sandy ongaphakeme e udaba eziphilayo (isibonelo Arvilla loam sandy, izinto ezivela ezintweni eziphilayo okuqukethwe 2%) ayikwazi eyakhelwe amazinga test umhlabathi ngenhla 100 ppm, kanjalo labo nenhlabathi, izinhlelo ukugcwala kwamanzi kukhona alunamsebenzi. Ukugcwala K emazingeni yethu entsha abagxeka 150 ppm noma 200 ppm ukuthi kuyoke kwenzeke loam textured nenhlabathi nge 3% udaba eziphilayo futhi ngenhla, nenhlabathi nobumba enkulu noma udaba eziphilayo (walungiselela Clays kukhona illites futhi smectites-kukhona kaolinite esiningi abanye nenhlabathi SW North Dakota, ngakho-CEC yangempela test- hhayi CEC by kwalokho, ezazizosiza umlimi ukunquma uma isivivinyo inhlabathi ebezingakhiwa. a CEC real mkhulu kunezinhliziyo 10 milliequivalents ngayinye amagremu 100 inhlabathi wayeyonikeza isisekelo ngempumelelo K ukugcwala kwamanzi.

Yini entsha

First version of corn potassium calculator for use only in the state of North Dakota, USA.