Productivity of Soil Fertilised with Fermented Calliandra, Gliricidia and Leucaena Browses and Maize Forage  

作　　者：Habib Kato Felix Budara Bareeba Elly Nyambobo Sabiiti 

机构地区：[1]Department of Agriculture, Kyambogo University, P.O. Box 1, Kyambogo, Uganda [2]Department of Animal Science, Makerere University, P.O. Box 7062, Kampala, Uganda [3]Department of Crop Science, Makerere University, P.O. Box 7062, Kampala, Uganda

出　　处：《Journal of Agricultural Science and Technology(B)》2013年第3期199-203,共5页农业科学与技术（B）

摘　　要：Fermented Callliandra, Gliricidia and Leucaena browses and maize material （milk stage） were applied to the soil to determine their effect on soil productivity. Hopi Red Dye Amaranthus （Amaranthus cruentus） was used as the test crop. Its DM yield was determined. The browse materials had higher total N and narrower C：N ratio than the maize material. Calliandra material had higher levels of insoluble fiber （ADF）, fiber bound N （ADFN） and lignin. Application of the browse and maize materials raised C, N, and C：N ratio of the soil in which they were applied compared to the control soil. The treated soils maintained higher levels of C and N and a narrower C：N ratio up to the third crop. Amaranthus DM yield was highest （P 〈 0.05） with browse treatments. Treatment with maize material did not have DM yield advantage over the control soil. Treatments with browse materials could have given higher yields because the materials had more N and fermentation could not only have increased the proportion of soluble N, but also degradability of the materials, thus making the N and other nutrients in the fermented materials available for plant growth. DM yield was highest （P 〈_ 0.05） with the first and third crops but lowest （P 〈 0.05） with the second crop. Plant growth in the second crop could have coincided with high demand for the N by the soil micro-organisms decomposing the added materials. During the third crop, decomposition of the readily degradable components of the added materials could have been complete and the N became available for plant growth. DM yield dropped （P 〈 0.05） with the fourth crop as the available N could have been depleted from the soil for plant growth.

关 键 词：FERMENTED CALLIANDRA GLIRICIDIA LEUCAENA AMARANTHUS soil productivity. 

分 类 号：S15[农业科学—土壤学] S792.99[农业科学—农业基础科学]