Download e-book for iPad: Garden lighting by John Raine

By John Raine

ISBN-10: 0600612856

ISBN-13: 9780600612858

Книга на английском языке!

Содержит более a hundred иллюстрированных решений освещения сада (деревьев, дорожек, беседок, водоемов и т.д.) , а также практические советы по планированию, использованию оборудования и материалов, и безопасности при проведении работ.

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Книга на английском языке!

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Intensive production to whit more growing per year. No erosion of the soil. Helpful for growing in cities. Resources conservation. Crop rotation is not necessary. No fertilizers for growing. Avoid great quantities of waste. 2; this table also presents a comparison between growing using both soil and hydroponics where yield figures are strikingly in favor of hydroponics. Protected agriculture is booming, using different levels of technology and focusing primarily on the production of vegetables.

For growing vegetables in greenhouses, on average it takes 5 to 10 workers per hectare work throughout the year on a permanent basis. For the production of cut flowers and ornamental plants 10 to 15 people per hectare are needed, also permanently. An agronomist can serve about five hectares. It provides the plants with greater protection, especially against the weather, pests, and diseases. It allows the use of techniques like hydroponics, irrigation technologies, balanced nutrition and climate control.

Even these simple devices allowed major advances in efficiency and product quality and made grower’s lives simpler. However, many of these control devices and methods cannot deliver the level of automation and efficiency needed in today’s dynamic, competitive environment. The thermostat is inexpensive and simple to install but it has poor accuracy, low energy efficiency and each actuator in the heating and cooling system require its own thermostat. The common problems experienced with using several independent thermostats and timers to control a greenhouse led to the development of early electronic analogue controls, also known as “step’’ controls.

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Garden lighting by John Raine


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