caa a22 4500 386326584 CHVBK 20180307111654.0 cr unu---uuuuu 161130e198907 xx s 000 0 eng 10.1017/S0014479700014885 doi S0014479700014885 pii (NATIONALLICENCE)cambridge-10.1017/S0014479700014885 MacColl D. University of Malawi, Bunda College, PO Box 219, Lilongwe, Malawi Studies on Maize (Zea mays) at Bunda, Malawi. II. Yield in Short Rotations with Legumes [Elektronische Daten] [D. MacColl] Maize was grown for six years on two soil series in annual rotation with groundnuts, soyabean, lab-lab and sunflowers, and for up to four years after two year crops of pigeonpea. Nitrogen left by the annual legumes was estimated to vary from 0.0 to 52.2 kg ha−1 depending on year, soil and species. Summed over three successive maize crops, nitrogen left by two year crops of pigeonpea varied from 23.5 to 109.6 kg ha−1. Vigorous vegetative growth and low seed yield in the legume were associated with increased residual nitrogen. Groundnuts left more nitrogen on the more fertile soil. High rainfall at the beginning of the maize cropping season was associated on one soil series with the complete disappearance of residual nitrogen from the immediately preceding legume crop. Copyright © Cambridge University Press 1989 Experimental Agriculture Cambridge University Press 25/3(1989-07), 367-374 0014-4797 25:3<367 1989 25 EAG https://doi.org/10.1017/S0014479700014885 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0014479700014885 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- MacColl D. University of Malawi, Bunda College, PO Box 219, Lilongwe, Malawi NATIONALLICENCE 773 0- Experimental Agriculture Cambridge University Press 25/3(1989-07), 367-374 0014-4797 25:3<367 1989 25 EAG CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence SWISSBIB 386326487 BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge