Low input tillage/cropping systems for limited resource areas

So, H. B., Kirchhof, G., Bakker, R. and Smith, G. D. (2001). Low input tillage/cropping systems for limited resource areas. In: Soil And Tillage Research. 15th Conference of the International Soil Tillage Research Organization, Texas, United States of America, (109-123). 02-07 July 2000 JUL 02-07, 2000. doi:10.1016/S0167-1987(01)00182-9

Author So, H. B.
Kirchhof, G.
Bakker, R.
Smith, G. D.
Title of paper Low input tillage/cropping systems for limited resource areas
Conference name 15th Conference of the International Soil Tillage Research Organization
Conference location Texas, United States of America
Conference dates 02-07 July 2000 JUL 02-07, 2000
Proceedings title Soil And Tillage Research   Check publisher's open access policy
Journal name Soil   Check publisher's open access policy
Place of Publication Amsterdam, Netherlands
Publisher Elsevier
Publication Year 2001
Sub-type Fully published paper
DOI 10.1016/S0167-1987(01)00182-9
ISSN 0167-1987
Volume 61
Issue 1-2
Start page 109
End page 123
Total pages 15
Language eng
Abstract/Summary Agriculture in limited resource areas is characterized by small farms which an generally too small to adequately support the needs of an average farm family. The farming operation can be described as a low input cropping system with the main energy source being manual labor, draught animals and in some areas hand tractors. These farming systems are the most important contributor to the national economy of many developing countries. The role of tillage is similar in dryland agricultural systems in both the high input (HICS) and low input cropping systems (LICS), however, wet cultivation or puddling is unique to lowland rice-based systems in low input cropping systems. Evidence suggest that tillage may result in marginal increases in crop yield in the short term, however, in the longer term it may be neutral or give rise to yield decreases associated with soil structural degradation. On marginal soils, tillage may be required to prepare suitable seedbeds or to release adequate Nitrogen through mineralization, but in the longer term, however, tillage reduces soil organic matter content, increases soil erodibility and the emission of greenhouse gases. Tillage in low input cropping systems involves a very large proportion of the population and any changes: in current practices such as increased mechanization will have a large social impact such as increased unemployment and increasing feminization of poverty, as mechanization may actually reduce jobs for women. Rapid mechanization is likely to result in failures, but slower change, accompanied by measures to provide alternative rural employment, might be beneficial. Agriculture in limited resource areas must produce the food and fiber needs of their community, and its future depends on the development of sustainable tillage/cropping systems that are suitable for the soil and climatic conditions. These should be based on sound biophysical principles and meet the needs of and he acceptable to the farming communities. Some of the principle requirements for a sustainable system includes the maintenance of soil health, an increase in the rain water use efficiency of the system, increased use of fertilizer and the prevention of erosion. The maintenance of crop residues on the surface is paramount for meeting these requirements, and the competing use of crop residues must be met from other sources. These requirements can be met within a zonal tillage system combined with suitable agroforestry, which will reduce the need for crop residues. It is, however, essential that farmers participate in the development of any new technologies to ensure adoption of the new system. (C) 2001 Elsevier Science B.V. All rights reserved.
Subjects C1
300101 Soil Physics
770702 Land and water management
620100 Field Crops
0503 Soil Sciences
0699 Other Biological Sciences
0799 Other Agricultural and Veterinary Sciences
Keyword Agriculture, Soil Science
Low Input Cropping System
Limited Resource Area
Cropping Systems
Zonal Tillage
Hedgerow Cropping
Semiarid Tropics
Continuous Cultivation
Q-Index Code C1

Document type: Conference Paper
Collection: School of Agriculture and Food Sciences
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Citation counts: TR Web of Science Citation Count  Cited 9 times in Thomson Reuters Web of Science Article | Citations
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Created: Tue, 14 Aug 2007, 19:40:45 EST