Agriculture for beginners . f decaying vegetablematter to the soil, and by growingcrops that can be tilled soil is a great storehouse formoisture. After the clouds haveemptied their waters into this store-house, the water of the soil comes tothe surface, where it is evaporatedinto the air. The water comes to thesurface in just the same way that oilrises in a lamp-wick. This rising ofthe water is called is necessar)- to understand what is meant by this bigword. If into a pan of water you dip a glass tube, the waterinside the tube rises above the level of the water
Agriculture for beginners . f decaying vegetablematter to the soil, and by growingcrops that can be tilled soil is a great storehouse formoisture. After the clouds haveemptied their waters into this store-house, the water of the soil comes tothe surface, where it is evaporatedinto the air. The water comes to thesurface in just the same way that oilrises in a lamp-wick. This rising ofthe water is called is necessar)- to understand what is meant by this bigword. If into a pan of water you dip a glass tube, the waterinside the tube rises above the level of the water in the smaller the tube the higher will the water rise. Thegreater rise inside is perhaps due to the fact that the glassattracts the particles of water more than the particles of waterattract one another. Now apply this principle to the soil. The soil particles have small spaces between them, and thespaces act just as the tube does. When the water at the sur-face is carried away by drying winds and warmth, the water. -^m^- Fig. 5. Ax EnlargedView of a Section ofMoist Soil, showingAir Spaces and SoilParticles
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectagriculture, bookyear
