International Journal For Multidisciplinary Research

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Efficiency and Relative Benefit of Organic Mulches in Weed Control in Chinese Cabbage Production, a Case of Morogoro, Tanzania

Author(s) Emerita Salutaris Sada, jumanne Musalama Rajabu, Leonard Lenda Paschal
Country Tanzania
Abstract This study presents different organic mulches’ effectiveness in enhancing Chinese cabbage productivity through improved weed control in Eastern Tanzania. The experiment was conducted in the field and laid out in a Randomized Complete Block Design (RCBD). The seeds were sown on trays in the nursery and the seedlings were transplanted after three weeks. The five treatments each replicated three times treatments T1 (paddy straw mulch), T2 (Sawdust mulch), T3 (Rice husk), T4 (negative control or unweeded), and T5 (positive or weed free). Mulches were applied immediately after transplanting at a depth of 10cm. Growth, yield and weed density data were collected after four weeks of transplanting to assess the effectiveness of different mulches for weed control. The results indicated that all mulch treatments significantly reduced weed density whereby sawdust showed the most effective mulch in control of the sedge weed at 81% followed by rice husk at 79% and paddy straw at 78%. For broad-leaf weeds, rice husk was most effective as it reduced weed density by 100% followed by paddy straw by 88% and sawdust by 87%. And for grass-type weeds, the most effective mulch was rice husk 100% followed by paddy straw 88% and sawdust 87%. This improved weed control translated to better growth and higher yields of Chinese cabbage. Rice husk mulch treatments showed the high biomass with 39%. The benefit analysis revealed that while all mulches are beneficial, T1, T2 and T3 both optimize the yield of Chinese cabbage and control weeds but T3 seemed to be good in weed control and increase the yield of Chinese cabbage production.
Keywords Chinese cabbage, Organic mulches, sawdust, rice husks, paddy straw, biomass, Tanzania
Published In Volume 7, Issue 3, May-June 2025
Published On 2025-06-30
DOI https://doi.org/10.36948/ijfmr.2025.v07i03.48712
Short DOI https://doi.org/g9r7mx
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