Jelaskan Tumbuhan yang tidak disukai dari Tanaman penutup tanah

Tanaman penutup tanah diperlukan oleh beberapa perkebunan terutama pada perkebunan Kelapa Sawit. Pada awal pembukaan lahan makan dilakukan penanaman pokok kelapa sawit dan saat ini lah peran dari tanaman penutup tanah  sangat diperlukan untuk melindungi tanaman baru dari serangan tumbuhan liar yang tidak diinginkan.

Banyak tumbuhan yang termasuk dalam tumbuhan pengganggu atau tidak disukai yang dapat berfungsi sebagai penutup tanah atau pelindung tanah terhadap ancaman erosi. Tumbuh-tumbuhan itu tidak disukai karena sifat-sifatnya yang merugikan tanaman pokok dan sulit diberantas atau dibersihkan dari lahan usaha pertanian: Imperata cylindrica, Panicum repens (lampuyangan), Leersia hexandra (kalamento), Saccharum spontaneum (gelagah), Anastrophus compressus dan Paspalum compressum (tumput pahit).

Hartwig, N. L., and H. U. Ammon. 2002. 50th Anniversary - Invited article - Cover crops and living mulches. Weed Science 50:688-699.

Blackshaw, R. E., J. R. Moyer, R. C. Doram, and A. L. Boswell. 2001. Yellow sweetclover, green manure, and its residues effectively suppress weeds during fallow. Weed Science 49:406-413.

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Bugg, R. L., and C. Waddington. 1994. Using Cover Crops to Manage Arthropod Pests of Orchards - a Review. Agriculture Ecosystems & Environment 50:11-28.

Cederbaum, S. B., J. P. Carroll, and R. J. Cooper. 2004. Effects of alternative cotton agriculture on avian and arthropod populations. Conservation Biology 18:1272-1282.

CENR. 2000. Integrated Assessment of Hypoxia in the Northern Gulf of Mexico. National Science and Technology Council Committee on Environment and Natural Resources, Washington, DC.

Clark, Andy (ed.). 2007. Managing Cover Crops Profitably, 3rd ed. Sustainable Agriculture Network, Beltsville, MD.

Creamer, N. G., M. A. Bennett, B. R. Stinner, J. Cardina, and E. E. Regnier. 1996. Mechanisms of weed suppression in cover crop-based production systems. HortScience 31:410-413.

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Ditsch, D. C., and M. M. Alley. 1991. Nonleguminous Cover Crop Management for Residual N Recovery and Subsequent Crop Yields. Journal of Fertilizer Issues 8:6-13.

Everts, K. L. 2002. Reduced fungicide applications and host resistance for managing three diseases in pumpkin grown on a no-till cover crop. Plant dis 86:1134-1141.

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Kuo, S., U. M. Sainju, and E. J. Jellum. 1997. Winter cover crop effects on soil organic carbon and carbohydrate in soil. Soil Science Society of America Journal 61:145-152.

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New Farm, The. Plans for no-till cover crop roller free for the downloading.

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"Cover Crops," Cyclopedia of American Agriculture, v. 2, ed. by L. H. Bailey (1911). A short encyclopedia article, early primary source on varieties and uses of cover crops.