SHADING EFFECTS OF ALLEY CROPPED LEUCAENA-LEUCOCEPHALA ON WEED BIOMASS AND MAIZE YIELD AT MTWAPA, COAST PROVINCE, KENYA

被引：19

作者：

JAMA, B

GETAHUN, A

NGUGI, DN

机构：

[1] School of Forest Resources and Conservation, Department of Forestry, University of Florida, Gainesville, 32611, FL

[2] International Council for Research in Agroforestry (ICRAF), Nairobi

来源：

AGROFORESTRY SYSTEMS | 1991年 / 13卷 / 01期

关键词：

LEUCAENA; ALLEY CROPPING; SHADE; FALLOW PERIOD; WEED BIOMASS; MAIZE YIELD; COASTAL KENYA;

D O I：

10.1007/BF00129615

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Reductions of up to 90% in weed biomass was observed under Leucaena leucocephala alley cropping with varying tree between (2, 4 and 8 m) and within-row spacing combinations when compared to crop-only control. An increase of 24 to 76% in maize yields of alley cropped plots compared to the crop-only control was also recorded. The 2 m alley widths closed canopy faster than the 4 and 8 m, and hence realized highest weed biomass reduction during the short-fallow period between two cropping seasons. At the end of the short fallow period, substantial fuelwood (up to 8 t ha-1) was realized.

引用

页码：1 / 11

页数：11

共 11 条

[1]

Jama, Getahun, Ngugi, Macklin, Leucaena alley cropping for the Kenya coast, Amelioration of soil by trees, pp. 115-165, (1986)

[2]

Bleasdale J.K.A., Systematic designs for spacing experiments, Expl Agric, 3, pp. 73-85, (1967)

[3]

Bldelman A., The performance of the leaf mulches of Leucaena leucocephal, Flemingia macrophylla and Gliricidia sepium in weed control, Agroforestry Systems, 6, pp. 137-145, (1988)

[4]

Hedge N., Leucaena foliage management in India, Leucaena research in Asian Pacific Region, (1982)

[5]

Huxley P.A., Systematic designs for field experimentation with multipurpose trees, Agroforestry Systems, 3, pp. 197-205, (1985)

[6]

Huxley P.A., Agroforestry experimentation: separating the wood from the trees?, Agroforestry Systems, 5, 3, pp. 251-275, (1987)

[7]

Kang B.T., Sipkens L., Wilson G.F., Nangju D., Leucaena leucocophala (Lam) de Wit pruning as nitrogen source for maize, Fertilizer Research, 2, pp. 279-287, (1981)

[8]

Kedir R., Getahun A., Jama B., The influence of rain fall distribution on the yield of maize under Leucaena leucocephala alley cropping at Mtwapa, Coast Province, Kenya, The application of meteorology to agroforestry systems planning and management, pp. 383-389, (1987)

[9]

Kuo Y.L., Chou C.H., Hu T.W., Allelopathic potential of Leucaena leucocephala, Leucaena Research Reports, 3, (1982)

[10]

Mead R., Stern R.D., Statistical considerations in experiments to investigate intercropping, Proceedings of the international workshop on intercropping, pp. 263-276, (1981)

← 1 2 →