Zobrazeno 1 - 4
of 4
pro vyhledávání: '"B. N. Okigbo"'
Autor:
B. N. Okigbo, D. J. Greenland
Publikováno v:
Multiple Cropping
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::014bfca20325c60910de8c8dce4a8521
https://doi.org/10.2134/asaspecpub27.c5
https://doi.org/10.2134/asaspecpub27.c5
Autor:
George G. Gyrisco, B. N. Okigbo
Publikováno v:
Journal of Economic Entomology. 55:753-760
Wheat fertilizer experiments were conducted in six important agricultural soils of western New York during the period 1956-58. Observations were made on Hessian fly ( Phytophaga destructor (Say) incidence and magnitude of infestation. Significant dif
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b4b1a73b9199d2135c102b4ee598d3aa
https://doi.org/10.1093/jee/55.5.753
https://doi.org/10.1093/jee/55.5.753
Autor:
B. N. Okigbo, R. Lal
Publikováno v:
Basic Technics in Ecological Farming / Techniques de Base en Agriculture Biologique / Grundsätzliche Verfahren der ökologischen Landwirtschaft / Le Maintien de la Fertilité des Sols / The Maintenance of Soil Fertility / Die Erhaltung der Bodenfruchtbarkeit ISBN: 9783764313746
The potential of crop residue mulches, intercropping and agri-silviculture to increase production and restore soil fertility in the humid tropics is examined. African data is used to illustrate the discussion and an urgent plea is made for research t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::28839f760d7607bb18205018ecb13c84
https://doi.org/10.1007/978-3-0348-6310-0_8
https://doi.org/10.1007/978-3-0348-6310-0_8
Autor:
B N, Okigbo
Publikováno v:
Food and nutrition. 12(1)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::3fdad35e65009f620f18c59f28f88e72
https://pubmed.ncbi.nlm.nih.gov/3792581
https://pubmed.ncbi.nlm.nih.gov/3792581