Influence of fertilizer management and soil fertility on tuber specific gravity: a review

2007 ◽  
Vol 84 (4) ◽  
pp. 283-290 ◽  
Author(s):  
Carrie A. M. Laboski ◽  
Keith A. Kelling
Keyword(s):  
Specific Gravity ◽  
Soil Fertility ◽  
Fertilizer Management ◽  
Tuber Specific Gravity

scholarly journals Tuber yield and economic result of ‘Atlantic’ potato in response to NPK fertilizer formulas

2019 ◽  
Vol 37 (4) ◽  
pp. 379-383
Author(s):  
Renato Yagi ◽  
Rogério P Soratto ◽  
Nilceu RX de Nazareno ◽  
Henrique L da Silva ◽  
Alexandre de C Dzierwa
Keyword(s):  
Specific Gravity ◽  
Soil Fertility ◽  
Tuber Yield ◽  
Potato Crop ◽  
Block Design ◽  
Operational Efficiency ◽  
Marketable Tuber ◽  
Randomized Complete Block Design ◽  
Npk Fertilizer ◽  
Fertilizer Rates

ABSTRACT The usual application of high 4-14-8 NPK fertilizer rates in the potato planting furrows, independently of the soil fertility or nutritional cultivar requirements, has become a paradigm in Brazil. However, the 4-14-8 NPK formula does not always meet the crop needs, and can unbalance the availability of nutrients in the soil. The objective of this study was to evaluate the tuber yield and economic results of ‘Atlantic’ potato as affected by rates of 4-14-8 and 6-30-6 NPK formulas applied in the planting furrows. The rates of both NPK formulas were calculated to reach P2O5 rates of 210, 420, and 630 kg ha-1. At each P2O5 rate, the 6-30-6 formula resulted in less 30% N and 65% K2O in the planting furrow compared to 4-14-8 formula. A randomized complete block design in a factorial scheme (2×3)+1, including an unfertilized furrow control, with three replications was used. Only the use of 6-30-6 formula increased the total tuber yield of ‘Atlantic’ potato. The marketable tuber yield reached higher levels (29.8 t ha-1) with higher P2O5 rate (440 kg ha-1) using the 6-30-6 than 4-14-8 formula. The fertilizer rates and formulas NPK did not affect specific gravity of marketable tubers. Therefore, the use of a fertilizer more concentrated in P2O5 that favors smaller contributions of N and K (as the 6-30-6 formula studied in this work) provides lower costs, and greater operational efficiency and profits in relation to the 4-14-8 formula traditionally used for the potato crop.

scholarly journals PENGELOLAAN PUPUK TERPADU DALAM UPAYA MENINGKATKAN HASIL JAGUNG MANIS DAN KESUBURAN LAHAN PADA SISTEM TANAM JAJAR LEGOWO 2:1

EUGENIA ◽  
2016 ◽  
Vol 22 (1) ◽  
Author(s):  
Yefta Pamandungan ◽  
David S. Runtunuwu ◽  
Rinny Mamarimbing ◽  
Jemmy Najoan
Keyword(s):  
Soil Fertility ◽  
Sweet Corn ◽  
Chemical Properties ◽  
Organic Fertilizers ◽  
Organic N ◽  
Fertilizer Management ◽  
Inorganic Fertilizers ◽  
Before And After ◽  
Planting System ◽  
Research Show

ABSTRACT This research aims to study the increase of the yields of sweet corn and soil fertility by applying integrated fertilizers management system in Jajar Legowo 2:1 planting system. The results of this research show that providing the 25% inorganic fertilizers plus 75% organic fertilizers as treatment has given better result for the yields of sweet corn than providing 100% inorganic fertilizers or 100% organic fertilizers as treatment. Chemical properties of the soil before and after the treatment of fertilizers, it is found out that the contents of C-Organic, N of soil, and K2O of the researched soil are categorized as low to very low. However, it is found out that the available content of P2O5 has increased by 4.29 ppm through the 25% inorganic fertilizers plus 75% organic fertilizers as treatment and has increased by 1.73 ppm through the 100% organic fertilizers as treatment. Keywords: integrated fertilizer management, sweet corn, jajar legowo

THE EFFECT OF SEEDPIECE POPULATION AND HARVEST DATE ON YIELD AND ECONOMIC VALUE OF CARLTON POTATOES IN MANITOBA

1989 ◽  
Vol 69 (3) ◽  
pp. 1019-1025
Author(s):  
B. L. REX ◽  
W. A. RUSSELL ◽  
H. R. WOLFE
Keyword(s):  
Solanum Tuberosum ◽  
Specific Gravity ◽  
Positive Relationship ◽  
Solanum Tuberosum L ◽  
Economic Value ◽  
Hollow Heart ◽  
Growing Seasons ◽  
Rainfed Conditions ◽  
Tuber Specific Gravity ◽  
Final Harvest

The effect of seedpiece population on Carlton potatoes for the early tablestock market was evaluated under rainfed conditions in southern Manitoba over the 1982, 1983 and 1985 growing seasons. Populations of 21.7, 26.3, 33.3, and 45.5 thousand seedpieces per hectare were harvested 75, 85 and 95 d after planting each year. Total and marketable tuber yields increased with population. Tuber specific gravity increased with population in 1982 and in the first two harvests in 1983, but no trends were observed in 1985 and in the final harvest in 1983. The incidence of hollow heart in marketable tubers was very low in all 3 yr, and was not related to seedpiece population or date of harvest. Net crop value (NCV) usually increased with successive harvests within each year, and generally showed a positive relationship with seedpiece population.Key words: Potato, Solanum tuberosum L., Carlton, seedpiece population, hollow heart, specific gravity

scholarly journals Selection for Tuber Characters Can Maintain High Specific Gravity in a Diploid Potato Breeding Population

HortScience ◽  
1990 ◽  
Vol 25 (2) ◽  
pp. 227-228 ◽  
Author(s):  
K.G. Haynes ◽  
F.L. Haynes
Keyword(s):  
Specific Gravity ◽  
Recurrent Selection ◽  
Breeding Population ◽  
High Specific Gravity ◽  
Solarium Tuberosum ◽  
Hybrid Population ◽  
Base Population ◽  
Diploid Potato Breeding ◽  
Growing Conditions ◽  
Tuber Specific Gravity

A base population of high specific gravity clones was established from a diploid hybrid population of Solarium tuberosum Group Phureja and Solarium tuberosum Group Stenotomum previously adapted to the long-day growing conditions in North Carolina. This base population was subjected to two 2-year cycles of recurrent selection. During each cycle, selections in the field were made on the basis of tuber smoothness, shape, and size. Tubers from unselected clones were bulked by plots. Tuber specific gravity was determined for the selected and unselected (bulk) clones. Tuber specific gravity was significantly greater in the selected than in the unselected clones in each cycle of selection.

scholarly journals UCC-C4243 Dessication of Potato Vines

2001 ◽  
Vol 11 (1) ◽  
pp. 86-89 ◽  
Author(s):  
Alexander D. Pavlista
Keyword(s):  
Solanum Tuberosum ◽  
Specific Gravity ◽  
Potato Cultivar ◽  
Subjective Evaluations ◽  
Gravity Effects ◽  
The Usa ◽  
Cultivar Atlantic ◽  
Vine Desiccation ◽  
Yield Trials ◽  
Tuber Specific Gravity

Chemical vine desiccation of potato (Solanum tuberosum L.) is widely used in the USA. Diquat is the major vine desiccant but has some drawbacks such as incomplete stem desiccation allowing regrowth. A new herbicide, UCC-C4243, was evaluated as a replacement for diquat. The potato cultivar `Atlantic' was treated with UCC-C4243 (a.i.) at 0.25 to 2.5 oz/acre (17.5 to 175 g·ha-1), and leaf and stem desiccation efficiency was compared to diquat (a.i.) at 4 oz/acre (280 g·ha-1). Split applications of UCC-C4243 were compared to double applications of diquat. Subjective evaluations were made on regrowth and tuber skinning, and objective measurements on specific gravity and yield. Trials were conducted from 1991 to 1995 at Scottsbluff, NE. UCC-C4243 at 1.5 oz/acre (105 g·ha-1) and higher significantly increased leaf and stem desiccation compared to diquat. There was no difference between single and split applications of UCC-C4243. UCC-C4243 suppressed regrowth at 1 oz/acre (70 g·ha-1) and prevented it at 2.5 oz/acre at 3 weeks after treatment while diquat did not. Skin set of tubers was promoted equally by all desiccants. Specific gravity was not lowered by UCC-C4243 but was by diquat. Yields were not affected by either UCC-C4243 at 1.5 oz/acre or diquat at 4 oz/acre. UCC-C4243 was more effective than diquat as a vine desiccant without the regrowth and tuber specific gravity effects associated with diquat.

EFFECTS OF APPLIED NITROGEN ON YIELDS, TUBER SIZES, AND SPECIFIC GRAVITIES OF TWO POTATO CULTIVARS

1977 ◽  
Vol 57 (3) ◽  
pp. 803-810 ◽  
Author(s):  
D. C. MUNRO ◽  
R. P. WHITE ◽  
J. B. SANDERSON
Keyword(s):  
Solanum Tuberosum ◽  
Specific Gravity ◽  
Prince Edward Island ◽  
Solanum Tuberosum L ◽  
Potato Cultivars ◽  
N Application ◽  
Significant Yield ◽  
Yield Responses ◽  
Tuber Specific Gravity ◽  
Applied Nitrogen

Potatoes (Solanum tuberosum L. cv. Sebago and Netted Gem) were grown at several locations on Prince Edward Island over a 5-yr period with rates of applied N from zero to 336 kg/ha. Significant yield responses to applied N occurred at all locations each year with each cultivar. At most locations, 112–134 kg N/ha was adequate for maximum yields. The response of the two cultivars to applied N was similar. Applied N up to 134 kg/ha increased the percentage yields of A-size tubers. Tuber specific gravity was affected by N application at only 8 of the 15 locations. Generally, excessive rates of applied N reduced specific gravity but rates sufficient for maximum yields were not deterimental.

Alturas: A multi-purpose, Russet potato cultivar with high yield and tuber specific gravity

2003 ◽  
Vol 80 (5) ◽  
pp. 295-301 ◽  
Author(s):  
R. G. Novy ◽  
D. L. Corsini ◽  
S. L. Love ◽  
J. J. Pavek ◽  
A. R. Mosley ◽  
...  
Keyword(s):  
Specific Gravity ◽  
Potato Cultivar ◽  
High Yield ◽  
Tuber Specific Gravity

Cured Dairy Compost Influence on Weed Competition and on ‘Snowden' Potato Yield

2013 ◽  
Vol 27 (2) ◽  
pp. 378-388 ◽  
Author(s):  
Alexander J. Lindsey ◽  
Karen A. Renner ◽  
Wesley J. Everman
Keyword(s):  
Specific Gravity ◽  
Potato Yield ◽  
Yield Reduction ◽  
Weed Competition ◽  
Weed Species ◽  
Common Lambsquarters ◽  
Hairy Nightshade ◽  
Giant Foxtail ◽  
The Impact ◽  
Tuber Specific Gravity

Potatoes are an important global food crop typically produced in high-input systems in temperate zones. Growers that have access to compost may use it to improve soil health and increase tuber yields, but compost may also increase weed competition by increasing early-season water availability and weed growth. A field study at the Michigan State University Montcalm Research farm in 2010 and 2011 investigated the impact of compost on weed competition in potato. Potatoes were grown in field plots with 0, 4,000, or 8,000 kg carbon (C) ha−1of compost under weed-free conditions, and in competition with common lambsquarters, giant foxtail, and hairy nightshade. Compost did not increase biomass or seed production of any weed species. Giant foxtail and hairy nightshade at 5.3 plants per meter of row reduced potato yield by 20%; common lambsquarters reduced yield by 45%. The yield reduction by giant foxtail and hairy nightshade was due to a decrease in tuber bulking, whereas yield reductions from common lambsquarters were a result of lower tuber set and bulking. Potato yield increased 5 to 15% in compost compared to non-compost treatments; tuber specific gravity decreased by 0.3% in composted treatments. Across weed densities, elevated soil potassium levels in the 8,000 kg C ha−1composted treatment may have increased potato yield and decreased tuber specific gravity.

Interaction of Metribuzin and Phorate on ‘Atlantic’ and ‘Norchip’ Potato (Solanum tuberosum) Cultivars

1994 ◽  
Vol 8 (3) ◽  
pp. 461-464 ◽  
Author(s):  
Harlene Hatterman-Valenti ◽  
Vince F. Lawson ◽  
Micheal D. K. Owen
Keyword(s):  
Solanum Tuberosum ◽  
Specific Gravity ◽  
Tuber Yield ◽  
Size Tuber ◽  
Chipping Potatoes ◽  
Plant Injury ◽  
Tuber Specific Gravity

The effects of metribuzin herbicide and phorate insecticide were studied on summer harvest chipping-potatoes at Muscatine, IA, from 1989 to 1991. Phorate at 1.5 kg/ha increased total and ‘A’-size tuber yield and tuber specific gravity. Metribuzin applied at 0.56 kg/ha postemergence decreased total and ‘A’-size tuber yield. Metribuzin applied at 0.56 kg/ha preemergence and 0.28 kg/ha postemergence did not reduce Atlantic cultivar yield. Metribuzin did not affect ‘B’-size tuber yield or specific gravity. Phorate in combination with metribuzin did not increase plant injury or reduce tuber yield.

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