scholarly journals Potato production by using different potassium rates and vermi-wash spray applications

2019 ◽  
Vol 113 (2) ◽  
pp. 299
Author(s):  
Mohamed A. ABDRABBO ◽  
Z. Y. MAHARIK ◽  
A. A. FARAG ◽  
M. ABUL-SOUD ◽  
M. A. FAHIM
Keyword(s):  
Vegetative Growth ◽  
Tuber Yield ◽  
Agricultural Research ◽  
Total Yield ◽  
Growth Yield ◽  
Potato Production ◽  
Water Control ◽  
Nutrient Contents ◽  
Potassium Application ◽  
Spray Applications

<h2>The use of vermi-wash as organic source and potassium nutrients were investigated under this study. A field experiment was carried out during two successive summer seasons of 2017 and 2018 under open field conditions in Dokki experimental location, Agricultural Research Center, Giza Governorate, Egypt. The study aimed to evaluate the effect of applying different potassium rates 140, 280 and 420 kg K<sub>2</sub>O per hectare combined with spray vermi-wash for two, four, six times as well as spray water (control) on vegetative growth, yield of potato (<em>Solanum tuberosum</em> ‘Spunta’). The applications of potassium rates and vermi-wash sprays affected significantly the potato vegetative growth, total and marketable tuber yield as well as nutrient contents (N, P and K %) of potato leaves. Increasing potassium rate from 140 to 280 kg K<sub>2</sub>O per hectare enhanced total yield. Increasing potassium application to 420 kg K<sub>2</sub>O per hectare led to decrease the vegetative growth and productivity compared to 280 kg K<sub>2</sub>O per hectare.  Regarding the vermi-wash spray applications, data revealed that two times spray of vermi-wash enhanced vegetative growth and productivity, while increasing spraying of vermi-wash to more than two times led to decrease of potato vegetative growth and productivity.</h2>

scholarly journals Transplanting Hybrid Potato Seedlings at Increased Densities Enhances Tuber Yield and Shifts Tuber-Size Distributions

2021 ◽  
Author(s):  
Luuk C. M. van Dijk ◽  
Michiel E. de Vries ◽  
Willemien J. M. Lommen ◽  
Paul C. Struik
Keyword(s):  
Tuber Yield ◽  
Seed Tuber ◽  
Total Yield ◽  
Cropping System ◽  
Potato Production ◽  
Size Class ◽  
Planting Density ◽  
And Shifts ◽  
Very High ◽  
Ridge System

AbstractTo contribute to the development of a novel cropping system for potato grown from greenhouse-derived seedlings from hybrid true potato seeds, planting density trials were carried out under normal Dutch agronomic conditions. For two consecutive years, 5-week-old seedlings of two experimental genotypes were transplanted into farmers’ potato production fields at two contrasting locations: a flat-bed system on sandy soil and a traditional ridge system on clay soil. Planting densities were 6.25, 12.5, 25, 50, 100 and 200 plants/m2 in the flat-bed system, and 3.125, 4.688, 6.25, 12.5, 25 and 50 plants/m2 in the ridge system. In general, increasing planting density of hybrid seedlings per area decreased tuber fresh weight per plant and reduced the number of tubers per plant. On a per hectare basis, an increased planting density resulted in increased total tuber yield and number of tubers up to very high densities, but finally both parameters levelled off. Highest total tuber yields harvested were 107 and 45 Mg/ha for the flat-bed and ridge system, respectively. On flat-beds, the optimal planting density for total yield was 50 plants/m2. On ridges, planting density interacted with year and genotype, resulting in an optimum planting density of 25 plants/m2 to reach the maximum total yield. Obtained yields in the commercial size classes Baby Baker (20 < size class ≤ 35 mm) and Seed Tubers (28 < size class ≤ 50 mm) were in general very high on the flat-beds, with a maximum Seed Tuber yield of 64 Mg/ha at 50 plants/m2. The current study showed that transplanted hybrid seedlings are feasible alternatives for seed-tuber-grown systems for certain potato outlets.

scholarly journals EFFECT OF FOLIAR APPLICATION OF VERMIWASH ON GROWTH AND QUALITY OF BRINJAL

2020 ◽  
Vol 3 (1) ◽  
pp. 31-34
Author(s):  
M. Yasmin ◽  
M.S. Rahman ◽  
M.A. Rahman ◽  
F.S. Shikha ◽  
M.K. Alam
Keyword(s):  
Agricultural Research ◽  
Foliar Application ◽  
Foliar Spray ◽  
Growth Yield ◽  
Nutrient Content ◽  
Growth And Yield ◽  
Control Treatment ◽  
Research Station ◽  
Water Control

The experiment was conducted at Regional Agricultural Research Station (RARS), Jamalpur, Bangladesh during the period of 2019-2020 and 2020-2021 to investigate the effect of vermiwash on growth, yield and quality of brinjal and to find out suitable foliar dose of vermiwash for optimizing the yield of brinjal. There were five treatments comprising T1= Chemical fertilizer (CF) + foliar spray of distilled water (control), T2 = CF + foliar spray of 10% vermiwash, T3 = CF + foliar spray of 20% vermiwash, T4 = CF + foliar spray of 30% vermiwash and T5= CF + foliar spray of 40% vermiwash. Results revealed that, vermiwash treated brinjal plants showed better growth and yield parameters than the control plants. The highest average brinjal fruit yield (29.99 t ha-1) was found in T3 treatment i.e., foliar spray of 20% concentration of vermiwash and the lowest (26.35 t ha-1) came from control. On the other hand, nutritional quality (moisture content, TSS, β carotene and nutrient content) were seen to be higher in vermiwash treated treatment compared to control treatment. The study suggests that, 20% concentration of vermiwash could be used as effective foliar spray for eco-friendly and higher yield of brinjal.

scholarly journals Bed Mulch Treatment Affects Strawberry Fruit Bronzing and Yield Performance

HortScience ◽  
2005 ◽  
Vol 40 (1) ◽  
pp. 72-75 ◽  
Author(s):  
Kirk D. Larson ◽  
Steven T. Koike ◽  
Frank G. Zalom
Keyword(s):  
Plant Growth ◽  
Vegetative Growth ◽  
Total Yield ◽  
Fruit Size ◽  
Growth Yield ◽  
High Irradiance ◽  
Lower Percentage ◽  
Strawberry Fruit ◽  
Yield Performance ◽  
Ambient Temperatures

Strawberry plants (`Commander') were grown with different polyethylene bed mulches in the 1999-2000 and 2000-2001 production seasons to determine the effect of mulch on plant growth, yield performance and incidence of Type III strawberry fruit bronzing (T3B), a fruit disorder of unknown origin. In 1999-2000, T3B incidence ranged from 1.8% to 3.7% of total yield, and use of clear, full-bed (CFB) mulch resulted in significantly less T3B incidence than either clear center-strip mulch (CS), or yellow-on-black full-bed mulch. Plant canopy vegetative growth and shoot to root dry mass ratios were greatest for CFB compared to other mulch treatments, but there was no effect of mulch treatment on yield or fruit size. Winter temperatures in 2000-2001 were colder than in 1999-2000, with reduced vegetative growth and increased T3B incidence in spring for all mulch treatments. Use of CFB mulch resulted in greater vegetative growth, greater yield, increased fruit size and reduced T3B incidence compared to CS or green full-bed mulch, but there was no difference among mulch treatments for number of T3B fruit per plot for any single fruit harvest interval. In 2000-2001, the onset of severe T3B symptoms on 7 May was preceded by a brief period of ambient temperatures >31 °C. For all treatments, peak T3B incidence occurred from late May to mid-June, a period characterized by high ambient temperatures and high irradiance conditions. Results indicate that temperature and radiation are significant factors in the development of T3B, and that increased plant vegetative growth in winter results in greater yields and a lower percentage of T3B-affected fruit, particularly in years with cold winters. Managing strawberry plantations to optimize plant growth and development in winter appears to be an effective strategy for reducing the severity of this disorder.

scholarly journals Response of Potato Varieties to Potassium Levels in Hamelmalo Area, Eritrea

2015 ◽  
Vol 5 (1) ◽  
pp. 11
Author(s):  
Daniel Zeru Zelelew ◽  
Biniam Mesfin Ghebreslassie
Keyword(s):  
Soil Fertility ◽  
Block Design ◽  
Total Yield ◽  
Potato Production ◽  
Quality Parameters ◽  
Soluble Solids ◽  
Tuber Quality ◽  
Tuber Weight ◽  
Potato Varieties ◽  
Potassium Application

Poor soil fertility and lack of high yielding certified varieties are of the major potato production tribulations in Eritrea. Top soils are continually removed due to water run-off and thus soil fertility and productivity has declined as a result. An experiment was designed to assess the response of potato varieties to different levels of potassium application at Hamelmalo Agricultural College, Eritrea. Three varieties (Ajiba, Zafira and Picasso) and five potassium levels (0, 75, 150, 225 and 300 kg K<sub>2</sub>O/ha) along with all possible interactions were used. Experimental design following factorial Randomized Complete Block Design (RCBD) in three replications was employed. Data was collected on yield and tuber quality parameters. The result of the study indicated that there were significant variations in the performances of varieties in terms of yield and quality parameters in which Ajiba was found to be more responsive and high yielding. Tuber number, tuber diameter, tuber weight per plant, total yield, total soluble solids, specific gravity and tuber moisture content showed significant differences due to the application of potassium. As a result, the highest tuber weight (1.14 kg/plant) and yield (49.38 tones/ha) were recorded from Ajiba treated with 300 kg K<sub>2</sub>O/ha. The result further revealed that there is a promising profit return by investing more on potassium application upto 300 kg K<sub>2</sub>O/ha. It is, thus, recommended that potassium fertilizers should be introduced to optimize productivity in Hamelmalo area, Eritrea.

Impact of Trichoderma application as bio-stimulator on disease suppression, growth and yield of potato

2021 ◽  
Vol 27 (01) ◽  
pp. 2252-2257
Author(s):  
M. Rakibuzzaman ◽  
M. H. Akand ◽  
M. Siddika ◽  
A. F. M. J. Uddin
Keyword(s):  
Tuber Yield ◽  
Growth Yield ◽  
Potato Production ◽  
Matter Content ◽  
Disease Suppression ◽  
Growth And Yield ◽  
Dry Matter Content ◽  
Synthetic Chemicals ◽  
Growth Attributes ◽  
The Impact

Excess use of chemical fertilizers and synthetic chemicals to increase the growth and yield as well as controlling disease often reduced soil fertility, adversely affect human health and environment. That’s why an experiment was accomplished in the Horticulture farm of Sher-e-Bangla Agricultural University, Dhaka during the period from November 2016 to March 2017 to study the impact of Trichoderma application as bio-stimulator on potato production. The study comprised of three Trichoderma treatments, (i) T0= No Trichoderma application, (ii) T1= 106spores/ml and (iii) T2= 108spores/ml. Trichoderma 1ml/L (1000 ppm) solution was applied two times in each plot at 15 and 45 days after planting (DAP). Data on growth yield and disease suppression parameters showed significant variation. The results elluciated that application of Trichoderma increased the growth attributes positively and produced 23.82% and 11.33% higher yield in T2 and T1 compared to no application of Trichoderma, respectively. Trichoderma (108spores/ml) improved tuber yield by optimizing the dry matter content. Furthermore, application of Trichoderma decreased the disease infestation and the best result (1.60%) recorded in T2. Therefore, 108spores/ml of Trichoderma application can be considered the potential bio-stimulator for prospective potato production with higher growth, yield and suppress of disease.

scholarly journals Performance of potato cultivars in an organic farming system using organic fertilizers, vermicompost and azolla

2021 ◽  
pp. 1081-1088
Author(s):  
Amal K. Abou El- Goud ◽  
Fahad R. Al- Masoodi ◽  
Karam A. Elzopy ◽  
Mona M. Yousry
Keyword(s):  
Vegetative Growth ◽  
Field Experiments ◽  
Growth Parameters ◽  
Organic Fertilizer ◽  
Growth Yield ◽  
Dry Weight ◽  
Potato Production ◽  
Potato Cultivars ◽  
Organic Fertilizers ◽  
Agricultural Practice

The challenges of food shortages and environmental pollution require the development of safe and effective alternatives to chemical fertilizers. Two field experiments were conducted during the summer season of 2019/2020 in two locations on a private farm to evaluate the performance of three potato cultivars (Sponta, Cara, and Elbieda) under different fertilizer treatments. The experiment was laid out in a split-plot design replicated thrice. The main plots had three potato cultivars, while the sub plots were comprised of seven fertilizer treatments. The results showed that the highest vegetative growth characters, viz. plant height, leaf chlorophyll index, and plant dry weight were produced by Sponta, followed by Cara, while the lowest growth attributes were recorded in Elbeida. Compared to the NPK inorganic fertilizer, organic fertilizers significantly improved the vegetative growth characteristics of potato in all treatments. Among the organic treatments, the highest growth parameters were recorded with the application of mixed organic fertilizer, vermicompost, and Azollapinnata (T1). The highest yield, viz. tuber yield, number of tubers per plant, and tuber weight, and yield quality characteristics, viz. total carbohydrates, starch, and TSS, were also recorded in T1. Our results demonstrate that the Sponta cultivar grown with the application of mixed organic fertilizer, vermicompost, and Azollapinnata (T1) produced the highest growth, yield, and quality of potato tubers. Thus, we recommend this treatment combination as a sustainable agricultural practice for potato production in similar areas

scholarly journals Performance evaluation of potato clones for the central Terai Region of Nepal

2021 ◽  
Vol 4 (2) ◽  
pp. 155-166
Author(s):  
Tek Prasad Gotame ◽  
Sujata Poudel ◽  
Bihani Thapa ◽  
Janaki Datta Neupane
Keyword(s):  
Tuber Yield ◽  
Agricultural Research ◽  
Potato Production ◽  
Research Field ◽  
Research Station ◽  
Check Variety ◽  
Seed System ◽  
Series Of Experiments ◽  
Evaluation Trial ◽  
Food And Nutritional Security

A series of experiments were carried out to evaluate the performance of exotic potato clones including PRP lines at research field of Regional Agricultural Research Station (RARS), Parwanipur, Bara, Nepal during the winter seasons of 2017 and 2018. Thirty-nine potato clones were evaluated in initial evaluation trial and eleven clones were evaluated in coordinated varietal trial with check varieties Khumal Ujjwal and Kufri Jyoti. From the initial varietal trial in 2017, the highest tuber yield (21.54 mt/ha) was found in CIP389660.9 followed by CIP391046.14 (21.38 mt/ha). In 2018, the highest tuber yield (29.72 mt/ha) was produced in CIP392759.1 followed by CIP393085.5 (26.92 mt/ha) and CIP391046.14 (26.64 mt/ha). In 2018, the tuber yield was the highest (26.12 mt/ha) in PRP 266265.15 followed by CIP 393371.159 (24.79 mt/ha). In coordinated varietal trial carried out in 2017/18, the highest tuber yield was noted in CIP394600.52 (42.65 mt/ha) followed by CIP395443.103 (30.83 mt/ha) and CIP395445.16 (24.43 mt/ha) respectively. Whereas in 2018/19, the highest yield was produced by PRP266265.15 (26.12 mt/ha) followed by CIP393371.159 (24.79 mt/ha) and CIP 396012.266 (22.66 mt/ha) respectively. In RARS, Parwanipur conditions, CIP 394600.52, CIP 395443.103, CIP 395445.16 and CIP 304394.56 along with PRP 266265.15 were found to be superior to standard check variety. These potential genotypes need to be further verified in farmers field in additional districts of central Terai region before notifying in the national seed system. Adoption of these clones as variety may increase the potato production and improve the food, and nutritional security in the central Terai region of Nepal.

scholarly journals Effects of bio-organic, conventional and nanofertilizers on growth, yield and quality of potato in cold steppe / Bioorganinių, tradicinių ir nanotrąšų poveikis bulvių augimui, derliui ir kokybei šaltojoje stepėje

2016 ◽  
Vol 22 (2) ◽  
pp. 133-144 ◽  
Author(s):  
Mohsen Janmohammadi ◽  
Nasim Pornour ◽  
Abdollah Javanmard ◽  
Naser Sabaghnia
Keyword(s):  
Nutrient Management ◽  
Tuber Yield ◽  
Solanum Tuberosum L ◽  
Growth Yield ◽  
Potato Production ◽  
Fertilizer Application ◽  
Tuber Weight ◽  
North West ◽  
The North ◽  
Qualitative Characteristics

AbstractThe potato (Solanum tuberosum L.) is an important crop in moderate to cold regions, producing high yields of nutritionally valuable food in the form of tubers. In the cold steppe of the North West of Iran, nutrient management is a crucial component for successful potato production. This study was conducted to determine the effect of different fertilizers on growth, phenological development, tuber yield and tuber qualitative characteristics in two potato cultivars (‘Agria’ and ‘Spirit’). Specific objectives were to assess the effects of nanofertilizers on potato. Fertilizer treatments included: T1- control (no fertilizer application), T2- N-P-K chemical bulk fertilizer, T3- MOG enzymatic bio-fertilizer, T4- nano-chelated calcium, T5- nano-chelated zinc+boron and T6- nano-chelated complete fertilizer. The results indicated that application of nano-chelated Zn+B, complete nanofertilizer and chemical bulk N-P-K significantly increased plant height, the number of stems, main stem diameter and the number of leaves, and also accelerated the row closure (canopy closure). Application of nanofertilizer noticeably decreased the number of days to the initiation of tuberization. The evaluation of tuber yield components revealed that the highest numbers of tuber per plant, mean tuber weight, tuber weight per plant and harvest index were obtained by application of complete nanofertilizer. Comparisons of the cultivars indicated that ‘Agria’ was more responsive than ‘Spirit’ to nutrient managements and showed a more acceptable performance. Nutrient managements significantly affected the qualitative characteristics of tuber; so that the highest dry matter, starch and protein content was recorded for plant grown by complete nanofertilizer. The results of the present experiment agreed with the conclusion that balanced plant nutrition through the efficient nanofertilizers can improve potato productivity. Maintaining soil fertility through an adequate, suitable and balanced nutrient supply is one of the key components for increasing potato production under irrigated condition in cold steppe.

scholarly journals Use of Mycorrhiza to Reduce Mineral Fertilizers in Soilless Melon (Cucumis melo L.) Cultivation

2019 ◽  
Vol 47 (4) ◽  
pp. 1331-1336
Author(s):  
Sultan DERE ◽  
Ayse COBAN ◽  
Yelderem AKHOUNDNEJAD ◽  
Suleyman OZSOY ◽  
Hayriye Yildiz DASGAN
Keyword(s):  
Plant Growth ◽  
Mycorrhizal Fungi ◽  
Total Yield ◽  
Growth Yield ◽  
Arbuscular Mycorrhizal ◽  
Early Spring ◽  
Nutrient Concentrations ◽  
Mineral Fertilizers ◽  
Digital Object Identifier ◽  
Nutrient Contents

Intensive use of mineral fertilizers in soilless growing systems can have adverse effects on the environment and human health and could be economically expensive. Aim of this study was whether it can be reduced mineral nutrients in soilless grown melon by using mycorrhizae inoculation. The experiment has been carried out in the early spring growing period in a greenhouse in the Mediterranean climate. The eight treatments have been applied:  (1) 100% Full nutrition (control), (2) 100% Full nutrition+mycorrhiza, (3) 80% nutrition, (4) 80% nutrition+mycorrhiza (5) 60% nutrition (6) 60% nutrition+mycorrhiza (7) 40% nutrition, (8) 40% nutrition+mycorrhiza. Effects of mycorrhiza on melon plant growth, yield, fruit quality, and leaf nutrient concentrations were investigated. Arbuscular mycorrhizal fungi colonization is accompanied by plant growth increases in reduced nutrient levels. The mycorrhiza inoculation had a significant enhancing effect on total yield in soilless grown melon plants. The highest increasing effect on melon yield was observed in the “80% nutrient+mycorrhiza”, and AM- inoculated plants produced 49.5% higher melon yield (12.4 kg m-2) than that of control plants without mycorrhizae (8.3 k gm-2). AM-inoculation was also able to establish an improvement in Brix and EC of melon fruit. In the nutrient contents of leaves, there were slight increases in AM-inoculated plants, except P. The P content was significantly increased in AM-inoculated 80% nutrient plants as comparison to that of its control.   ********* In press - Online First. Article has been peer reviewed, accepted for publication and published online without pagination. It will receive pagination when the issue will be ready for publishing as a complete number (Volume 47, Issue 4, 2019). The article is searchable and citable by Digital Object Identifier (DOI). DOI link will become active after the article will be included in the complete issue. *********

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