caa a22 4500 465776523 CHVBK 20180323111943.0 cr unu---uuuuu 170327e19901101xx s 000 0 eng 10.1007/BF00123474 doi (NATIONALLICENCE)springer-10.1007/BF00123474 Soil fertility changes and response of maize and beans to green manures of leucaena, sesbania and pigeonpea [Elektronische Daten] [J. Onim, M. Mathuva, K. Otieno, H. Fitzhugh] Three multipurpose tree species (MPTS)-leucaena (Leucaena leucocephala), sesbania (Sesbania sesban var. nubica) and pigeonpea (Cajanus cajan) were pruned at a height of 60 cm above the ground every two months, and resulting plant biomass was incorporated into the soil as green manure. For comparison, maize (Zea mays) stover was also incorporated into some plots, while some other plots were left fallow. Varying quantities of plant biomass which were incorporated into the soil over a period of 12 months caused large changes in major soil plant nutrients, and it substantially improved soil fertility. To test for improved soil fertility, test crops of maize and beans (Phaseolus vulgaris) were grown on the plots after six biomass incorporations of 4806, 13603, 16659 and 7793 kg. ha−1yr−1 for pigeonpea, sesbania leucaena and maize, respectively. Responses of the test crops indicated that sesbania and leucaena green manures improved maize stover, cobs and grain yields; and bean haulms and grain yields by 77.6% when compared to fallow plots. Residual effects of green manures still resulted in significant (P < 0.05) yield differences in the test cropin the third testing season. Economic significance of green manures in increasing food crop yields to small scale farmers is discussed. Kluwer Academic Publishers, 1990 Agroforestry nationallicence green manure nationallicence leucaena nationallicence sesbania nationallicence pigeonpea nationallicence soil fertility nationallicence maize nationallicence beans nationallicence Onim J. Winrock International Institute for Agricultural Development, Maseno, Kenya aut Mathuva M. Kenya Agricultural Research Institute (KARI), Maseno, Kenya aut Otieno K. Kenya Agricultural Research Institute (KARI), Maseno, Kenya aut Fitzhugh H. Winrock International Institute for Agricultural Development, Maseno, Kenya aut Agroforestry Systems Kluwer Academic Publishers 12/2(1990-11-01), 197-215 0167-4366 12:2<197 1990 12 10457 https://doi.org/10.1007/BF00123474 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00123474 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Onim J. Winrock International Institute for Agricultural Development, Maseno, Kenya aut NATIONALLICENCE 700 1- Mathuva M. Kenya Agricultural Research Institute (KARI), Maseno, Kenya aut NATIONALLICENCE 700 1- Otieno K. Kenya Agricultural Research Institute (KARI), Maseno, Kenya aut NATIONALLICENCE 700 1- Fitzhugh H. Winrock International Institute for Agricultural Development, Maseno, Kenya aut NATIONALLICENCE 773 0- Agroforestry Systems Kluwer Academic Publishers 12/2(1990-11-01), 197-215 0167-4366 12:2<197 1990 12 10457 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer