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invasive weed identification and management
invasive weed identification and management

... into an environment outside of their native range. In their new environment, they have few or no natural enemies to limit their reproduction and spread (Anonymous 2002). Invasive weeds affect us all— farmers, homeowners, taxpayers, consumers, and tourists. Several invasive weeds also are considered ...
Recommended Landscape Plant List
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... native populations of this species arose spontaneously at Pleasant Valley Conservancy State Natural Area in southcentral Wisconsin after oak savanna restoration was initiated in 1997. Ecological observations of permanently marked stands made over a ten year period have shown that growth is highly va ...
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... Description of H. mantegazzianum H. mantegazzianum grows from a yellow branched root system 40-60 cm deep and ranges up to 15 cm in diameter at the crown when mature. The species persists in the form of a vegetative rosette for several years, and then (after the plant accumulates enough resources fo ...
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... systems (Verma and Suthar, 2014) generally have beneficial by-products that can be used as energy sources such as biogas or biodiesel (Fujita et al., 1999), or as feed for fish or cattle (Goopy and Murray, 2003). The other obvious advantage of using plants in outdoor settings to recapture phosphate ...
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Full text  - Dr.BGR publications
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fulltext - DiVA portal
fulltext - DiVA portal

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... Generally, companion planting is thought of as a small-scale gardening practice. However, in this discussion the term is applied in its broadest sense to include applications to commercial horticultural and agronomic crops. ATTRA has another publication, Intercropping Principles and Production Pract ...
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History of botany



The history of botany examines the human effort to understand life on Earth by tracing the historical development of the discipline of botany—that part of natural science dealing with organisms traditionally treated as plants.Rudimentary botanical science began with empirically-based plant lore passed from generation to generation in the oral traditions of paleolithic hunter-gatherers. The first written records of plants were made in the Neolithic Revolution about 10,000 years ago as writing was developed in the settled agricultural communities where plants and animals were first domesticated. The first writings that show human curiosity about plants themselves, rather than the uses that could be made of them, appears in the teachings of Aristotle's student Theophrastus at the Lyceum in ancient Athens in about 350 BC; this is considered the starting point for modern botany. In Europe, this early botanical science was soon overshadowed by a medieval preoccupation with the medicinal properties of plants that lasted more than 1000 years. During this time, the medicinal works of classical antiquity were reproduced in manuscripts and books called herbals. In China and the Arab world, the Greco-Roman work on medicinal plants was preserved and extended.In Europe the Renaissance of the 14th–17th centuries heralded a scientific revival during which botany gradually emerged from natural history as an independent science, distinct from medicine and agriculture. Herbals were replaced by floras: books that described the native plants of local regions. The invention of the microscope stimulated the study of plant anatomy, and the first carefully designed experiments in plant physiology were performed. With the expansion of trade and exploration beyond Europe, the many new plants being discovered were subjected to an increasingly rigorous process of naming, description, and classification.Progressively more sophisticated scientific technology has aided the development of contemporary botanical offshoots in the plant sciences, ranging from the applied fields of economic botany (notably agriculture, horticulture and forestry), to the detailed examination of the structure and function of plants and their interaction with the environment over many scales from the large-scale global significance of vegetation and plant communities (biogeography and ecology) through to the small scale of subjects like cell theory, molecular biology and plant biochemistry.
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