Effects of Hay Mulch on Soil Properties and Potato Tuber Yield under Irrigation and Nonirrigation in New Brunswick, Canada

The objective of this study was to evaluate variations in potato tuber yield with the selected land and soil characteristics including (i) topography (elevation and slope); (ii) geometry (horizontal coplanar geometry (HCP)and perpendicular coplanar geometry (PRP)); (iii) hydrology (volumetric moisture content; θv), and (iv) chemistry (phosphate, potash, organic carbon; organic carbon and pH). Analyses of the data collected across four potato fields, two each in Prince Edward Island and New Brunswick (NB), showed that the tuber yield negatively correlated with the field slope and positively correlated with most of the soil characteristics studied. Field elevation affected yield only under certain conditions such as higher range of elevation (≥ 7 m) (Field 2 in NB). Among soil characteristics, only HCP and PRP correlated with field elevation. The slope and elevation explained 22% to 36% variability of yield. Investigations of yield and topography by zonal analysis showed that yield was lower in zones of higher slope or elevation and lower θv, as the mean θv decreased in zones with a higher slope.

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Spatial Variability of Potato Tuber Yield and Plant Nitrogen Uptake Related to Soil Properties

Agronomy Journal ◽

10.2134/agronj13.0468 ◽

2014 ◽

Vol 106 (3) ◽

pp. 851-859 ◽

Cited By ~ 10

Author(s):

Suzanne E. Allaire ◽

Athyna N. Cambouris ◽

Jonathan A. Lafond ◽

Sébastien F. Lange ◽

Bernard Pelletier ◽

...

Keyword(s):

Spatial Variability ◽

Soil Properties ◽

Potato Tuber ◽

Nitrogen Uptake ◽

Tuber Yield ◽

Plant Nitrogen ◽

Plant Nitrogen Uptake

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Production of seed potatoes in Cyprus: the effects of roguing and planting date on the spread of potato leaf roll virus, tuber yield, and infestation by potato tuber moth

Potato Research ◽

10.1007/bf02357845 ◽

1989 ◽

Vol 32 (3) ◽

pp. 331-339 ◽

Cited By ~ 3

Author(s):

N. Ioannou

Keyword(s):

Potato Tuber ◽

Tuber Yield ◽

Leaf Roll ◽

Planting Date ◽

Potato Leaf Roll Virus ◽

Potato Tuber Moth ◽

Potato Leaf ◽

Seed Potatoes

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The effects of the growth-regulating compounds methyl decanoate and 2, 3, 5-triiodobenzoic acid on potato tuber size

The Journal of Agricultural Science ◽

10.1017/s0021859600054708 ◽

1976 ◽

Vol 86 (2) ◽

pp. 251-255

Author(s):

D. C. E. Wurr

Keyword(s):

Potato Tuber ◽

Size Distribution ◽

Tuber Yield ◽

Potato Crop ◽

Total Yield ◽

Tuber Size ◽

Tuber Initiation ◽

Triiodobenzoic Acid ◽

Tuber Size Distribution ◽

Methyl Decanoate

SummaryApplication of methyl decanoate to a potato crop about the time of tuber initiation reduced the total yield and the yield of tubers in the grade 2·5–5·5 cm though neither of these reductions were significant. However, application of 2,3,5-triiodobenzoic acid increased the yield of tubers 2·5–5·5 cm by up to 20% while having no significant effect on total tuber yield. This change in the tuber size distribution was due to a more even partition of photosynthate between tubers and not to an increase in the total number of tubers.

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