scholarly journals Effect of Harvest Time and Nitrogen Doses on Cassava Root Yield and Quality

2017 ◽  
Vol 41 (0) ◽  
Author(s):  
Natália Trajano de Oliveira ◽  
Sandra Catia Pereira Uchôa ◽  
José Maria Arcanjo Alves ◽  
José de Anchieta Alves de Albuquerque ◽  
Guilherme Silva Rodrigues
Keyword(s):  
Harvest Time ◽  
Root Yield ◽  
Yield And Quality ◽  
Cassava Root

scholarly journals Early Sowing Combined with Adequate Potassium and Sulfur Fertilization: Promoting Beta vulgaris (L.) Yield, Yield Quality, and K- and S-Use Efficiency in a Dry Saline Environment

Agronomy ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 806
Author(s):  
Ali A. A. Mekdad ◽  
Mostafa M. Rady ◽  
Esmat F. Ali ◽  
Fahmy A. S. Hassan
Keyword(s):  
Plant Physiology ◽  
Sugar Beet ◽  
Growth Yield ◽  
Sugar Yield ◽  
Growth And Yield ◽  
Path Coefficient ◽  
Root Yield ◽  
Yield And Quality ◽  
Study Results ◽  
Positive Direct

Field trials for two seasons (2018/2019 and 2019/2020) were conducted to investigate the influence of the addition of three levels of potassium (K) (K1 = 60, K2 = 120, and K3 = 180 kg K2O ha−1) and/or sulfur (S) (S1 = 175, S2 = 350, and S3 = 525 kg CaSO4 ha−1) to the soil, as well as the sowing date (the 1st of September, D1; or the 1st of October, D2) on the potential improvement of physiology, growth, and yield, as well as the quality characteristics of sugar beet yield under soil salinity conditions. With three replicates specified for each treatment, each trial was planned according to a split-split plot in a randomized complete block design. The results revealed that early sowing (D1) led to significant improvements in all traits of plant physiology and growth, in addition to root, top, and biological yields and their quality, gross and pure sugar, and K- and S-use efficiencies based on root yield (R-KUE and R-SUE). The K3 level (180 kg K2O ha−1) positively affected the traits of plant physiology, growth, yield and quality, and R-SUE, and reduced the attributes of impurities, impurity index, and R-KUE. Additionally, the S3 level (525 kg CaSO4 ha−1) affirmatively affected plant physiology, growth, yield and quality traits, and R-KUE, and decreased impurity traits, impurity index, and R-SUE. The interaction of D1 × K3 × S3 maximized the yield of roots (104–105 ton ha−1) and pure sugar (21–22 ton ha−1). Path coefficient analysis showed that root yield and pure sugar content had positive direct effects with 0.62 and 0.65, and 0.38 and 0.38 in both studied seasons, respectively, on pure sugar yield. Significant (p ≤ 0.01) positive correlations were found between pure sugar yield and root yield (r = 0.966 ** and 0.958 **). The study results recommend the use of the integrative D1 × K3 × S3 treatment for sugar beet to obtain maximum yields and qualities under salt stress (e.g., 8.96 dS m−1) in dry environments.

scholarly journals Fodder Beet (Beta Vulgaris Var Crassa) Yield and Quality Attributrs As Affected By Nitrogen Fertilization and Foliar Boron Application

2020 ◽  
pp. 1-6
Author(s):  
Entessar Al-Jbawi ◽  
◽  
Faddi Abbas ◽  
Keyword(s):  
Nitrogen Fertilization ◽  
Yield Components ◽  
Dry Matter ◽  
Foliar Application ◽  
Dry Matter Yield ◽  
Root Yield ◽  
Fodder Beet ◽  
Fertilization Rates ◽  
Yield And Quality ◽  
Scientific Agriculture

A field experiment was conducted during two seasons 2018/2019 and 2019/2020 at Homs Agriculture Research Center, General Commission for Scientific Agriculture Researches (GCSAR), Syria, to study the effect of nitrogen fertilization rates and foliar application of boron on root yield and quality and dry matter yield of fodder beet. Results showed that the effect of nitrogen fertilization was significant (p≤0.001) for all studied traits except brix%. The effects were significant positive on root, shoot and biological yields, sucrose percentage, root, shoot and total dry matter yields. On the other hand the effect of boron spraying was presented for each season separately, because the differences of boron treatments were significant for all parameters except brix% at each season, and HI at the two seasons, while the differences of years were significant for all parameters except for HI. the highest yield and yield components were achieved by adding 300 kg N/ha with the addition of boron under Homs governorate conditions.

scholarly journals Desempenho agronômico de mandioca de mesa manejada com irrigação e uso de cobertura plástica do solo

2020 ◽  
Vol 16 (6) ◽  
pp. 47-55
Author(s):  
Jorge Cesar dos Anjos Antonini ◽  
Eduardo Alano Vieira ◽  
Josefino de Freitas Fialho ◽  
Fernando Antônio Macena ◽  
Krishna Naudin ◽  
...  
Keyword(s):  
Soil Cover ◽  
Agronomic Performance ◽  
Root Yield ◽  
Cassava Root ◽  
Crop Development ◽  
Effective Depth ◽  
Shoot Weight ◽  
Individual Use ◽  
The Individual ◽  
Sweet Cassava

Although cassava is recognized for its high tolerance to drought, irrigation is showing satisfactory results. However, few studies have been carried out to determine the effects of soil cover, irrigation and the combination of both on crop development. Theobjective of this study was to determine the influence of irrigation and plastic soil cover on the agronomic performance of sweet cassava. The planting was done in beds, in thedouble row system with the stem cutingsimplanted vertically, with 0.60m between rows and 0.80 m between plants. The following treatments were applied: naked non-irrigated bedding, bedding covered with non-irrigated black polyethylene plastic, naked bedding with irrigation and bedding covered with irrigated black polyethylene plastic. Irrigation wasperformedby conventional sprinkling, based on the daily soil water balance at the effective depth of the cassava root system in the different stages of crop development. The characters evaluated were: shoot weight, root yield, starch percentage in the roots and time for cooking. The expression of the characters shoot weight, root yield and starch percentage in the roots wassignificantly influenced by irrigation managementandsoil cover. The individual use of irrigation and plastic soilcover technologies led to increases in root yieldof 55% and 13%, respectively, and when used together, root yieldincreased by 89%.

scholarly journals Influence of fertilization and nitrate-nitrogen position in soil profile on the sugar beet root yield and quality

2008 ◽  
Vol 53 (2) ◽  
pp. 83-90
Author(s):  
Goran Jacimovic ◽  
Branko Marinkovic ◽  
Jovan Crnobarac ◽  
Darinka Bogdanovic ◽  
Lazar Kovacev ◽  
...  
Keyword(s):  
Sugar Beet ◽  
Nitrate Nitrogen ◽  
Quality Parameters ◽  
Sugar Yield ◽  
Root Yield ◽  
Negative Effects ◽  
Beet Root ◽  
Yield And Quality ◽  
Sugar Beet Root ◽  
Root Quality

Researches, which have lasted for two years, were carried out on long-term trial field at Rimski Sancevi, Novi Sad, Serbia. In this trial, the eight fertilization variants of N, P2O5 and K2O increased amounts were studied. Sugar beet root and tops yields were determined, as well as the elements of technological sugar beet root quality. Based on these results, percentage of sugar utilization and refined sugar yield was defined. In the spring, before applying of N fertilizer, amount of nitrate nitrogen in the soil and its influence on yield and quality was determined. The highest root yield in 2002 was produced at the variant N100 P150 K150, and in 2003 at the variant N150 P150 K150. However, in both years, referring to the variant N100 P100 K100, the differences were not statistically significant. Increasing of nitrogen amounts had negative effects on refined sugar yield. Amounts of NO3-N in the soil in spring, before sugar beet sowing, in 2002 had significant influence on root yield and refined sugar yield. In the year 2003, which was highly dry, high correlation ratio were gained between amounts of NO3-N in the soil and root quality parameters, but it wasn't significant between nitrogen amounts and root and refined sugar yield.

scholarly journals Effect of soil potassium on yield and quality of diverse sugar beet genotypes

2011 ◽  
Vol 48 (No. 9) ◽  
pp. 418-423
Author(s):  
M. Antunović ◽  
D. Rastija ◽  
M. Pospišil
Keyword(s):  
Sugar Beet ◽  
Negative Correlation ◽  
Potassium Concentration ◽  
Sugar Content ◽  
Root Yield ◽  
Beet Root ◽  
Growing Seasons ◽  
Yield And Quality ◽  
Sugar Beet Root

Aiming at determination differences in leaf and root potassium concentration of diverse sugar beet genotypes as well as its effect on sugar beet root quality and yield. Investigations comprising 15 sugar beet genotypes (five multigerm lines, five hybrids and five monogerm lines) were carried out on two soil types (Calcic luvisol: L-1 and L-3 and Calcic gleysol: L-2 and L-4) during two growing seasons. Root yield of the investigated genotypes on Calcic luvisol (50 t/ha) was higher, than on Calcic gleysol (34 t/ha). In general, multigerm lines were known for the highest leaf potassium concentration (2.75%), lowest root one (3.78 mmol/100 g root), highest sugar content (13.8%) and best root extractable sugar (1.5%). Monogerm lines had the lowest leaf potassium concentration (2.51%), highest root one (4.24 mmol/100 g root), lowest sugar content (12.9%), and the poorest extractable sugar (10.7%). Root yield of the investigated hybrids (48 t/ha) was higher by 16% compared to multigerm lines yield (42 t/ha) and as much as 35% higher compared to monogerm lines (36 t/ha). Sugar beet root potassium was in significantly negative correlation with sugar content at three localities (L-1: r = –0.485**, L-2: r = –0.096, L-3: r = –0.687**, L-4: r = –0.337**) whereas at all four localities it was in negative correlation with extractable sugar (L-1: r = –0.634**, L-2: r = –0.407**, L-3: r = –0.930**, L-4: r = –0.749**). Potassium concentration in sugar beet leaf was in significant positive correlation with sugar content at three localities (L-1: r = 0.382**, L-2: r = 0.231, L-3: r = 0.717**, L-4: r = 0.516**).

An evaluation of the yield and quality of oat - legume and ryegrass - legume mixtures and legume monocultures harvested at three stages of growth for silage

2007 ◽  
Vol 47 (1) ◽  
pp. 25 ◽  
Author(s):  
A. G. Kaiser ◽  
B. S. Dear ◽  
S. G. Morris
Keyword(s):  
Subterranean Clover ◽  
Buffering Capacity ◽  
Water Soluble ◽  
Soluble Carbohydrate ◽  
In Vitro Digestibility ◽  
Harvest Time ◽  
N Content ◽  
Yield And Quality ◽  
Water Soluble Carbohydrate

The effect of harvest time on the dry matter (DM) yield and quality of 10 annual temperate legumes [Trifolium subterraneum, var. brachcalycinum and var. subterraneum L. (subterranean clover), T. michelianum Savi (balansa clover), T. alexandrinum L. (berseem clover), Medicago murex Willd. (murex medic), M. truncatula Gaertn. (barrel medic), T. vesiculosum Savi (arrowleaf clover), Vicia sativa L. (common vetch), V. benghalensis L. (purple vetch), Pisum sativum L. (peas) grown in monoculture or in mixtures with oats (Avena sativa L.)] was examined in a Mediterranean environment in southern New South Wales. Three of the legumes (subterranean clover, berseem and peas) were also grown in mixtures with ryegrass (Lolium multiflorum Lam.). The forages were sown on 29 May and harvested at three times (2 October, 23 October and 6 November), corresponding to the boot, anthesis and dough stage of the cereal oat variety, Kalgan. Peas were the highest yielding of the legume monocultures at each of the three harvest times (6.9, 11.6, 12.3 t DM/ha), followed by purple vetch (6.2, 9.9, 8.7 t DM/ha). Of the small-seeded pasture legumes, berseem, murex and arrowleaf clover were the highest yielding at the second harvest (7.5–8.8 t DM/ha) when most reached their peak biomass. The inclusion of oats with the legumes increased total DM yield at the first, second and third harvests by 10–54, 7–99 and 3–102%, respectively. Oat monocultures were high yielding (up to 17.7 t DM/ha), but had low N contents (6.3–12.5 g N/kg DM). Oat–legume forage mixtures had nitrogen (N) contents of 7–15 g N/kg compared with 17–40 g N/kg in the legume monocultures. The N content and digestibility of most species and mixtures decreased as harvest time was delayed, whereas total DM peaked at the second harvest for all species except Cooba oats. The legume content of the mixtures was negatively correlated with total DM yield, DM content and water soluble carbohydrates, but positively correlated with N content, in vitro digestibility and buffering capacity. The digestibility of oats decreased more rapidly than the legumes with advancing maturity, and it would need to be harvested at the boot stage to produce a silage of sufficiently high metabolisable energy for the production feeding of cattle. A later harvest at anthesis when yield is higher would produce a silage of sufficient quality for production feeding from an oat–large seeded legume mixture with a legume content of 0.50. The oats and ryegrass had high water soluble carbohydrate and low to medium buffering capacity and would, therefore, be expected to produce well-preserved silages. The legume monocultures had low water soluble carbohydrate contents and high buffering capacity values and there would be a high risk of a poor silage fermentation in these forages without field wilting or the use of a silage additive.

Defoliation of Sugarbeet: Effect on Root Yield and Quality

2000 ◽  
Vol 37 (2) ◽  
pp. 1-10 ◽  
Author(s):  
G. F. Stallknecht ◽  
K. M. Gilbertson
Keyword(s):  
Root Yield ◽  
Yield And Quality

Relationships among growing degree-days, tenderness, other harvest attributes and market value of processing pea (Pisum sativum L.) cultivars grown in Quebec

2006 ◽  
Vol 86 (2) ◽  
pp. 525-537 ◽  
Author(s):  
Edith Fallon, Nicolas Tremblay ◽  
Yves Desjardins
Keyword(s):  
Moisture Content ◽  
Size Distribution ◽  
Seed Size ◽  
Growing Degree Days ◽  
Harvest Time ◽  
Degree Days ◽  
Fresh Matter ◽  
Yield And Quality ◽  
Grain Moisture ◽  
The Relationship

In Quebec, grower income from processing peas is a function of yield and tenderometer reading. If peas are harvested early, the yield is poor, but the overall quality is superior, as indicated by lower tenderometer readings. Later harvests result in g reater yields but reduced quality (higher tenderometer readings). A better understanding of the relationship between harvest time, yield and quality is needed. In this study, the relationships between yield, tenderometer readings, size distribution and grain moisture content were examined as a function of growing degree-days (GDD) and production year for pea cultivars of different seed size categories. Yield and harvest attributes (tenderometer readings, seed size distribution and moisture content) were highly season dependent and their rates of change over the course of the harvest period also varied with the cultivar and year. Quality declined rapidly once the crop reached optimal maturity, while yield increased in a less predictable manner. Consequently, it was difficult to identify a harvest time that would consistently maximize grower returns. The highest income was generally not obtained at the optimal tenderometer readings presently used by the industry. Key words: Maturity, harvest date, climate, fresh matter yield, tenderometer, pea size

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