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Articles by C. Chiduza
Total Records ( 3 ) for C. Chiduza
  I.I. Mudita , C. Chiduza , S. Richardson-Kageler and F.S. Murungu
  This study compared in-row intercropping practiced by some small-holders in Chinyika in Zimbabwe with various options of strip intercropping with the aim of increasing crop diversification and stability of cereal based cropping systems. Other intercropping patterns studied include 1 maize: 1 soya bean; 2 maize: 5 soya bean; 4 maize: 4 soya bean and 5 maize: 2 soya bean rows. Both maize and soya bean were adversely affected by intercropping as shown by partial equivalent ratios (PLER). The adverse effect of competition was greater under low rainfall conditions, but irrigation and high rainfall tended to improve productivity of intercrop systems. Overall, results indicated that intercropping maize with soya bean was more efficient than sole cropping with regard to Land Equivalent Ratio (LER) and income. Strip intercropping was more productive than in-row intercropping but is used by farmers because of perceived advantages of mechanical weeding. The results suggest that from a biological point of view, greater efficiency would be achieved by adopting a strip intercropping arrangement of 5 maize: 2 soya bean rows as a cropping pattern. This arrangement was more productive than sole cropping in a season with 426 mm of rainfall when all other intercropping treatments evaluated achieved LER <1.00.
  I.I. Mudita , C. Chiduza , S.J. Richardson-Kageler and F.S. Murungu
  The objective of this study was to intensify soybean and maize production in smallholder production systems, where land is a limiting resource. Performance during growth and final yield in intercrop was evaluated for cultivars with different growth habits. Field experiments were undertaken at two sites, in two seasons (2002/03 and 2003/04) to evaluate the response of two soybeans (Storm-a determinate and Solitaire-an indeterminate cultivar) to intercropping with three maize cultivars (a semi-erectophile SC513, a planophile PAN413 and AC31; a dwarf cultivar). Treatments were laid in a Randomised Complete Block Design (RCBD) with three replications. Intercropping significantly increased Leaf Area Index (LAI), resulted in greater yields and income per unit land area than sole crops. In 2002/03, maize and soya bean cultivars did not significantly affect Land Equivalent Ratio (LER). However, the maize cultivar by soya bean cultivar interaction significantly (p<0.01) affected LER. Maize cultivar SC513 resulted in the highest LER with Storm but the lowest with Solitaire. It was concluded that SC513, a semi-erectophile intercropped with a determinate soya bean Storm cultivar might optimise yields without significant maize yield reduction.
  T. Madanzi , C. Chiduza , S.J. Richardson Kageler and T. Muziri
  A study was conducted at Chinyika Resettlement Area (Chinyudze, Gowakowa, Pfumoiguru and Chinyudze) and at Thornpark Estates (University of Zimbabwe Farm) to evaluate the effects of different plant populations (100 000, 150 000, 200 000, 250 000 plants ha-1) on the yield and yield components of three different specific nodulating soybean varieties during the 2002/2003 (Storm, Safari and Solitaire) and four varieties during the 2003/2004 rainy season (Storm, Safari, Solitaire and Magoye). In 2002/2003 the trial was laid as a 3x4 factorial treatment structure under Randomised Complete Block Design (RCBD) while during the 2003/2004 the trial was laid as a 4x4 factorial treatment structure replicated thrice. Results showed that there was a significant interaction (p<0.05) on yield due to plant population and variety main effects at Pfumoiguru. The highest yield was obtained between 200 000 and 250000 plants ha-1 while the indeterminate grain type of varieties, Safari and Solitaire obtained the highest yield across all sites. Farmers in marginal areas like Chinyika Resettlement Area may plant soybean at between 200000 and 250000 plants ha-1 while indeterminates like Solitaire and Safari may also be considered. In high potential areas like Thornpark Estates, farmers can grow soybean at 250000 plants ha-1 or at the recommended plant population of 300000 plants ha-1 across all varieties except for Magoye which achieved higher yield at 100000 plants ha-1.
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