Effects of methods of seedbed preparation and mulching on the growth and yield of white yam (Dioscorea rotundata) on an ultisol in south-east Nigeria

Maduakor, H. O.; Lal, Rattan; Opara-Nadi, O.A.

doi:10.1016/0378-4290(84)90018-2

Cited by 25 publications

(17 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For D. esculenta, Enyi (1972a and recorded weight of roots recovered within the ridge in the area of the sample but did not attempt to trace the extent of roots of individual plants. Maduakor et al (1984) estimated root length density and root weight density of D. rotundata from root cores but did not report the depth profile obtained.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

CROP DEVELOPMENT AND ROOT DISTRIBUTION IN LESSER YAM (DIOSCOREA ESCULENTA): IMPLICATIONS FOR FERTILIZATION

et al. 2008

View full text Add to dashboard Cite

A growth analysis study involving monthly excavation of Dioscorea esculenta plants revealed that the root system developed fully in the period before tuber initiation, and extended radially for a distance between 2.3 and 4.3 m. Primary roots initially remained in the top 10 cm of the soil profile, but descended to approximately 30 cm near their full extension. Tuber number increased from initiation around 21 weeks after planting (WAP) until maximum vine growth was reached around 33 WAP, but tuber dry weight continued to increase throughout the senescence period of the vine, to 45 WAP. Tubers lost dry matter but not fresh weight during dormancy in the soil, to 55 WAP. The results indicate that a distance of at least 4.5 m is required to separate experimental fertilizer treatments, and that post-establishment burial of fertilizers around the mound or ridge risks damage to roots near their base, while inter-row application is accessible to roots and may be preferable. I N T RO D U C T I O NThe yield of yams (Dioscorea spp.) is influenced by a range of agronomic, physiological and environmental factors, whose interactions are not well understood. High variability within yam plantings has hampered progress to characterize yield determinants in the crop and is largely a product of the mode of vegetative propagation (Okoli, 1980;Onwueme and Haverkort, 1991). Despite a long growing season (7-12 months depending on species and climate) the size of the initial planting piece (tuber sett) is highly influential on final yield (Enyi, 1972a;Ferguson, 1977;Nwoke et al., 1977). In addition to the sett size, large variability among plants results from differences in sprouting time and vigour, both influenced by the sett's dormancy status and which part of the mother tuber is used (whole tubers or top, middle or tail sections) (Okoli, 1980). Virus and nematode loads undoubtedly add to variability in most plantings. In addition, staking, mounding and mulching practices are known to influence yield, but the extent of influence has varied among reported studies and depends on genotype and environmental conditions (Enyi, 1972b;Maduakor et al.,

show abstract

Section: Discussionmentioning

confidence: 99%

“…Virus and nematode loads undoubtedly add to variability in most plantings. In addition, staking, mounding and mulching practices are known to influence yield, but the extent of influence has varied among reported studies and depends on genotype and environmental conditions (Enyi, 1972b;Maduakor et al, …”

mentioning

confidence: 99%

CROP DEVELOPMENT AND ROOT DISTRIBUTION IN LESSER YAM (DIOSCOREA ESCULENTA): IMPLICATIONS FOR FERTILIZATION

et al. 2008

View full text Add to dashboard Cite

show abstract

“…The few studies undertaken in Nigeria and other tropical countries gave inconclusive and contradicting results under the different tillage practices compared (Hulugalle et al 1985). On the sandy soils of Nigeria, Maduakor et al (1984) observed no significant difference in yam tuber yield when planted on ridges, mounds or on the flat. A study carried out on Ultisols of south-east Nigeria indicated that yam yields in no-tilled plots were greater than in ploughed plots (Opara-Nadi and Lal 1987).…”

Section: Introductionmentioning

confidence: 96%

Soil properties and yam yield under different tillage systems in a tropical Alfisol

Agbede

Adekiya

2013

Archives of Agronomy and Soil Science

View full text Add to dashboard Cite

“…Therefore, since yam is planted between the period extending from around the cessation of the rains in a given year to the time of onset in the succeeding year, it implies therefore that as soon as germination starts, soil moisture become critical, hence the need for efficient soil moisture conservation strategy in other to optimize soil physical condition affecting the crop yield. Various techniques used by traditional farmers in modifying the on-farm microclimate and efficiency of such techniques in West Africa have been studied and reported [7][8][9][10][11]. [12] reported that mulching is very important in yam cultivation.…”

Section: Introductionmentioning

confidence: 99%

“…[12] reported that mulching is very important in yam cultivation. The beneficial effects of mulching on soil moisture and temperature, and growth and yield have been reported by [7,13,9][10]. [14] reported that majority of the traditional yam farmers in West Africa use different mulching materials for yam cultivation.…”

Section: Introductionmentioning

confidence: 99%

Effect of Mulching on Soil Temperature and Moisture Regime on Emergence, Growth and Yield of White Yam in a Tropical Wet-and-Dry Climate

O¹,

J²,

C³

2012

IJAF

View full text Add to dashboard Cite

An on-farm yam experiment was conducted to study the effect of mulching on soil temperature and moisture regime on white yam (Dioscorea rotundata) growth and yield in Abeokuta, South-western Nigeria. Three mulching options (grass mulched, polythene mulched and unmulched) was selected and related to crop growth and yield. Grass mulch significantly (P < 0.05) lowered maximum soil temperature by 1-2℃ at 15cm depth during the thermal critical period (January -March). This led to higher rate of emergence which accounted for 28 and 46% to the polythene mulch and the unmulched plots respectively. Furthermore, grass mulch had tuber yield of about 4-6 tonnes ha-1 season-1 greater than the polythene mulch and the unmulched plots. Irrespective of mulching materials, it was found that mulching significantly (P< 0.05) increased tuber yield by about 6-8 tonnes ha-1 season-1 than the unmulched. The effect of grass mulch over nylon mulch on yam performance in the study was also discussed.

show abstract

Effects of methods of seedbed preparation and mulching on the growth and yield of white yam (Dioscorea rotundata) on an ultisol in south-east Nigeria

Cited by 25 publications

References 13 publications

CROP DEVELOPMENT AND ROOT DISTRIBUTION IN LESSER YAM (DIOSCOREA ESCULENTA): IMPLICATIONS FOR FERTILIZATION

CROP DEVELOPMENT AND ROOT DISTRIBUTION IN LESSER YAM (DIOSCOREA ESCULENTA): IMPLICATIONS FOR FERTILIZATION

Soil properties and yam yield under different tillage systems in a tropical Alfisol

Effect of Mulching on Soil Temperature and Moisture Regime on Emergence, Growth and Yield of White Yam in a Tropical Wet-and-Dry Climate

Contact Info

Product

Resources

About