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Effect of tillage type on soil water content and chickpea yields

Vance, W., Bell, R.W., Johansen, C., Haque, M.E., Musa, A.M., Shahidullah, A.K.M. and Mia, M.N.N. (2014) Effect of tillage type on soil water content and chickpea yields. In: Proceedings of the conference on conservation agriculture for smallholders in Asia and Africa, 7 - 11 December, Mymensingh, Bangladesh pp. 143-144.

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Abstract

The development of 2-wheel tractors (2WT) with planters attached has given rise to one-pass seeding, and the possibility of minimum tillage and conservation agriculture suitable for smallholder agriculture. The main advantages of minimum tillage techniques include: soil water conservation, targeted placement of seed and fertiliser, lower rates of fertiliser and seed, less labour and fuel required, and less time required to sow a crop (Haque et al. 2010).
Germination, emergence and early seedling growth of cool and dry (rabi) season crops (such as chickpea and lentil) grown on residual soil moisture can be limited in the silty clay soils of the High Barind Tract, Bangladesh due to rapid drying and hard-setting of the surface soil. One-pass seeding can minimise the time taken from rice harvest to sowing of the next crop and increases the probability that the surface soil retains sufficient moisture for crop establishment (Kumar et al. 2007). Minimum tillage is also a practice often used to conserve water in the soil profile and it has been reported that in conditions of less tillage there was greater soil water storage in the profile or greater soil water storage at depth in the profile later in the growing season (Barzegar et al. 2003). The objective of this work was to determine the effect of tillage type on: (i) seed-bed conditions and early chickpea establishment; and (ii) available water content and crop water use.

Publication Type: Conference Paper
Murdoch Affiliation: School of Veterinary and Life Sciences
URI: http://researchrepository.murdoch.edu.au/id/eprint/26169
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