Culture: Soil-less
Küçük Resim Yok
Tarih
2017
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Crc Press-Taylor & Francis Group
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Soilless systems allow farmers to grow plants without soil. This can eliminate or reduce many problems associated with traditional cultivation on soil in situ, such as soil-borne diseases and pests, the related use of agrochemicals, and decline of soil structure and fertility due to continual cultivation of the same or related crop species. Although often associated with vegetables, soilless systems allow cultivation of many other plants, including flowers and ornamentals. In soilless cultivation, plant roots may grow either in porous media (substrates), which are frequently irrigated with a nutrient solution, or directly in the nutrient solution without any solid material. Soilless systems can be either open-loop or closed-loop cultivation systems. The latter, which involves reusing any drainage solution, can substantially reduce potential pollution of water resources by nitrates and phosphates, while contributing to an appreciable reduction in water and fertilizer consumption. Other general advantages of the soilless systems are as follows: 1) plant nutrition can be better controlled than in crops cultivated in the soil, 2) soil tillage and preparation are avoided, thereby increasing the potential length of the cultivation time, and 3) yields are increased. The major disadvantages of soilless culture are the high costs that are required for the initial installation, as well as the increased technical skills that are needed.
Açıklama
Anahtar Kelimeler
Kaynak
Encyclopedia of Soil Science, Vols I-Iii, 3Rd Edition
WoS Q Değeri
N/A
