@article {721,
	title = {Wheat cultivation in association with Acacia nilotica (L.) Willd ex. Del. field bund plantation {\textemdash} a case study},
	journal = {Agroforestry Systems},
	volume = {17},
	year = {1992},
	month = {January 1992},
	pages = {43-51},
	abstract = {The paper presents the results of a case study conducted to find out the influence of single row bund plantation of Acacia nilotica var. juquemontii on the growth and yield of associated wheat crop under irrigated conditions in Haryana, India. The indications are that the tree line does affect all crop parameters like height growth, shoot numbers, ear length, grain number and grain yield in the vicinity of trees upto 4 m distance from the tree line and establishes that as the distance from the tree line increases the growth and yield of wheat crop also improves. The effect on wheat crop was found more pronounced in the plots laid out towards the middle of the tree line as compared to plots towards the outer border.},
	keywords = {Acacia nilotica var. jaquemontii, agroforestry, bund plantation, crop yield, wheat},
	doi = {10.1007/BF00122926},
	url = {https://doi.org/10.1007/BF00122926},
	author = {K. K. Sharma}
}
@article {580,
	title = {IITA: Sustainable systems},
	journal = {African Farming},
	year = {1987},
	month = {Sept/Oct 1987},
	pages = {50-51},
	abstract = {Bede Nwoye Okigbo, Deputy Director General of International Institute of Tropical Agriculture (IITA) for the last ten years, is one of those rare human beings who has a rich professional life perfectly integrated with his own personality. Several societies and academies have enrolled his talents. His field of specialization is crop ecology and production, but it is hard to find any area of agriculture or botany where Okigbo{\textquoteright}s profound insight or experience in not equally valid. In this interview, Dr. Okigbo explains how research being carried out at IITA is helping Africa to feed itself.},
	keywords = {agricultural extension, agroforestry, alley cropping, barley, cassava, cereal food imports, cereals, cowpeas, farming systems research , food aid, green revolution, indigenous crops, maize, millet, plantains, rice, seed yam, seeds, soils, sorghum, strategic planning study, sustainable agriculture, wheat, yams},
	author = {Anonymous}
}
@article {649,
	title = {Seventeenth century organic agriculture in China: II. Energy flows through an agroecosystem in Jiaxing region},
	journal = {Human Ecology},
	volume = {14},
	year = {1986},
	month = {1986},
	pages = {15-28},
	abstract = {An examination of traditional agriculture of the Jiaxing region of eastern China in the seventeenth century. Use of statistical evidence on energy inputs and outputs to show the sustainable incorporation of silk, mulberry, livestock, fishing, and cereal crop production with little or no fossil fuel use.},
	keywords = {agroecology, China, energy flow, fodder, labor, organic farming, rice, silkworm, wheat},
	doi = {10.1007/BF00889208},
	url = {http://www.jstor.org/stable/4602798},
	author = {Wen Dazhong and David Pimentel}
}
