Bøger af Francesca Sanna

Soil water content has an important role for agriculture and agricultural science. Most physical and chemical properties of soil vary with moisture content. Measurement of soil moisture is needed in every type of soil study and application of adequate and timely irrigation, depending upon the soil-moisture-plant environment, is essential in crop production. The need to improve irrigation practices is well known. Measured irrigation volumes varied as a result of changing spacing, canopy interference, overwintering structures, and inefficiencies in irrigation systems. Inefficient and excessive irrigation leads to increased runoff of water and nutrients. Best management practices have to be adopted to use water resources more sustainably. Methods are beneficial for growers concerned with reducing water use and controlling runoff. However, these irrigation practices are not based on plant water needs nor the soil moisture measurements are based on fully documentate traceable data and often information about calibration, resolution, accuracy and uncertainty are not provided. The author would like to thanks Peng Miao researcher at NPL, UK and Andrea Merlone researcher at INRiM, Italy

Hr. Bjerg lever en stille og rolig tilværelse. Han har stået det samme sted i millioner af år. Og det er han ganske godt tilfreds med. Men en dag bliver Hr. Bjerg forstyrret. “Hallo, Bjerg. Flyt dig lige lidt!” er der en stemme, der råber. Hr. Bjerg bliver meget overrasket: Hvilket lille menneske vover at forstyrre ham? Nedenfor hans fod står pigen Lily. Og hun vil gerne se verden, men det store bjerg står i vejen. Hr. Bjerg prøver at skræmme pigen væk ved at vride regn ud af skyerne, lade blæsten suse og sneen falde, men Lily er ligeglad. Hun fortsætter med sit: Flyt dig lige! Til sidst ser Hr. Bjerg sig nødsaget til at lære Lily at klatre, og en dag bliver der pludselig stille. Lily er væk. Og for første gang synes hr. Bjerg, at tiden føles lang.Flyt dig, hr. Bjerg er en smukt illustreret billedbog om en handlekraftig pige med mod på verden.