"The soil in perspective; The supply and availabitity of plant nutrients in mineral soils; Some important physical properties of mineral soils; Inorganic soil colloids. Their nature and practical significance; The organics of the soil; The organic matter of mineral soils; Forms of soil water, energy relations and classification; Movements of soil water and plant relationships; Soil moisture control and related phases. Runoff, erosion, and percolation; Soil moisture control; Drainage, weeds, evaporation, and temperature; The origin, nature, and classification of soil materials; Soil formation, classification and survey; The soil reaction, soil acidity and alkalinity; The nature and utilization of organic soils; Lime and its soil-plant relationships; The nitrogeneconomy of soils; Fertilizers and fertilizer effects; Farm manure and green manure; The fertility management of mineral soils."
"The lsoil in perspective. The supply and availability of plant nutrients in mineral soils. Some important physical properties of mineral soils. Inorganic soil colloids. Their nature and practical significance. The organisms of the soil. the organic matter of mineral soils. Forms opf soil water. energy relations and classification. Movements of soil water and plant relationships. Soil moisture control and related lphases. Runoff, erosion, and percolation. Soil moisture control drainage, weed, evaporation, and temperature. The originh, nature, and classification of soil materials. Soil formation, classification and survey. The soil reaction, soil acidity and alkalinity. The nature and utilization of organic soils. Lime and its soil-plant relationships. The nitrogen economy of soils. Fertilizer effects. Farm manure and green manure. The fertility management of mineral soils."
"The soil in perspective, the supply and availability of plant nutrients in mineral soils, some important physical properties of mineral soils, inorganic soil colloids, the organism of the soil, the organic matter of mineral soils, forms of soil water,energy relations and classification, movements of soil water and plant relationships, soil moisture control and related phases, soil moisture control, the origin,nature,and classication of soil materials, soil formation,classification and survey, the soil reaction, soil acidity and alkalinity, the nature and utilization of organic soils, lime and its soil-plant relationships, the nitrogen economy of soil, fertilizers and fertilizer effects, farm manure and green manure, the fertility management of mineral soil."
"The soil in perspective, the suplly and availability of plant nutrients in mineral soils, some important physical properties of mineral soils, inorganic soil colloids, the organism of the soil, the organic matter of mineral soils, forms of soil water,energy relations and classification, movements of soil water and plant relationships, soil moisture control and related phases, soil moisture control, the origin,nature,and classication of soil materials, soil formation,classification and survey, the soil reaction, soil acidity and alkalinity, the nature and utilization of organic soils, lime and its soil-plant relationships, the nitrogen economy of soil, fertilizers and fertilizer effects, farm manure and green manure, the fertility management of mineral soil."
"The soil in perspective. The suppy and availability of plant nutrients in mineral soils. Some important Physical properties of mineral soils. Soil colloids. Their nature and practical significance. The organisms of the soil. The organic matter of mineral soils. Forms of soil water, their movement, and their plant relationships. Vapor losses of soil moisture and their regulation. Liquid losses of soil water and their control. Soil air and soil temperature. The origin, Nature, and classification of parent materials. Soil formation, classification and survey. Organic soils-nature, properties, and utilization. The soil reaction; soil acidity and alkalinity. Lime and its soil-plant relationships. The nitroghen economy of soils. The supply and availability of phosphorus and potassium. Fertilizers and fertilizer management. Farm manure and green manure. The fertility management of mineral soils."
"A fundamental concept of the soil. The supply and availability of plant nutrients in mineral soils. The physical properties of mineral soil. Colloidal clay and ionic exchange. Organisms of the soil. The organic matter of mineral soil. Forms of soil-water and their plant relationships. Soil-moisture losses and their control. The origin and classification of soil materials. Soil formation, classification, and survey. Nature and utilization of organic. The soil reaction-soil acidiy and alkalinity. Liming the soil. The nitrogen economy of soils. fertilizers and fertilizers practice. Farm-nature and green-manure. The methods of fertility maintenance for mineral soils."
"El suelo, generalidades; Substancias nutritivas de los suelos minerales. Su asimilabilidad para las plantas; Principales propriedades fisicas de los suelos minerales; Caracteres e importancia del coloide inorganico del suelo; Los organismos del suelo; La materia organica de los suelos minerales; El agua del suelo. Relaciones energeticas. Clasificacion; Movimientos del agua del suelo. Sus relaciones con las plantas; Contralor de la humedad del suelo. I.: excurrimiento, erosion y percolacion. II. Drenaje, evaporacion y temperatura. Origen, caracteres y clasificacion de los materiales del suelo; Formacion del suelo. Clasificacion y reconocimientos de suelos; La reaccion del suelo. Acidez y alcalinidad; Naturaleza y utilizacion de los suelos organicos; La cal. Sus relaciones con el suelo y la planta; El nitrogeno del suelo; Los fertilizantes. Fertilizacion; El estiercol y los abonos verdes; Manejo de la fertilidad de los suelos minerales."
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