Название: Fertilizers: Properties Applications and Effects Автор: Langdon R. Elsworth, Walter O. Paley Издательство: Nova Science Publishers Год: 2008 Формат: pdf Страниц: 285 Размер: 10,5 МБ Язык: English
Fertilisers are compounds given to plants to promote growth; they are usually applied either through the soil, for uptake by plant roots, or by foliar feeding, for uptake through leaves. Fertilisers can be organic (composed of organic matter), or inorganic (made of simple, inorganic chemicals or minerals). They can be naturally occurring compounds such as peat or mineral deposits, or manufactured through natural processes (such as composting) or chemical processes (such as the Haber process). Fertilisers typically provide, in varying proportions, the three major plant nutrients (nitrogen, phosphorus, and potassium), the secondary plant nutrients (calcium, sulphur, magnesium), and sometimes trace elements (or micronutrients) with a role in plant nutrition: boron, chlorine, manganese, iron, zinc, copper, and molybdenum. This new book presents recent and important research from around the globe.
The encyclopedia of Medical plants Название: The Encyclopedia of Medicinal Plants Автор: Andrew Chevallier Издательство: DK Год: 1996 Формат: pdf Страниц: 298 Размер: 85,3 МБ Язык:...
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Fertilizers: Properties Applications and Effects 
