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Soil tests manuale

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Soil Test™ - HI98331 è uno strumento tascabile robusto e afficabile che offre misure di EC veloci e precise. È dotato di sonda in acciaio inox per la penetrazione, di un unico pulsante di funzionamento e di calibrazione automatica. È è un'ottima scelta per misurazioni di EC direttamente nel suolo. A tenuta stagna fileslib. Place it in the pH 4 buffer solution (for acid soils), respectively in the pH 9.2 buffer solution (for alkaline soils). Set the meter reading with the slope control. (The slope should be greater than 92% - if not the electrode might require cleaning.) 2 7. Alter calibration immerse electrode into upper part of sample suspension. Soil Testing Labs. The North American Proficiency Testing (NAPT) Program furnishes agricultural and environmental laboratories with quality control and quality assurance tools through quarterly blind and double-blind statistical evaluation of soil, plant, and water samples. These tools assist laboratories in generating accurate and precise
Soil samples must be representative of the land area in question. The recommendation is to take a minimum of one composite sample per 12-15 ha for lime and fertilizer evaluations. A representative soil sample is composed of 15-20 subsamples from a uniform field with no major variation in slope, drainage, or past fertilizer history.
Nel caso di test manuale, il problema è relativo, in quanto il tester può eseguire sequenzialmente le prove e valutarne l'efficacia, eventualmente provvedendo ad una ristrutturazione o ad ulteriori analisi nel caso si accorgesse di anomalie; nel caso di test automatizzato le cose si complicano, in quanto occorre non solo capire il funzionamento del software di test utilizzato, la sua

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