Evaluation of Plant-bed Fertility in Vidalia Onions

In 1998–99, experiments were conducted to evaluate current fertility practices with plant-bed onions. In experiments in 1998 and 1999, a factorial experiment of preplant 5–10–15 and CaNO3 sidedressing indicated that CaNO3 had a significant effect on foliar nitrogen levels. CaNO3 also had an effect on stand count in 1998, but not in 1999. CaNO3 and 5–10–15 had an effect on plant height in both 1998 and 1999, with an interaction between 5–10–15 and CaNO3 in 1999. In 1999, transplants were also evaluated on an acceptability scale with 5–10–15 and CaNO3 rates resulting in significant differences in transplant acceptability. Postseedling applications of high phosphorus fertilizer were also evaluated. There were no consistent improvements in transplant growth with applications of high phosphorus fertilizers, such as 18–46–0 or 10–34–0, either on soils with very high residual phosphorus (242 lb/acre) or medium residual phosphorus (50 lb/acre). In addition, variety was not a factor in these responses.

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Evaluation of Transplant Fertility of Short-day Onions in Southeast Georgia

HortScience ◽

10.21273/hortsci.37.4.651 ◽

2002 ◽

Vol 37 (4) ◽

pp. 651-655

Author(s):

George E. Boyhan ◽

Reid L. Torrance ◽

David E. Curry ◽

Pamela M. Lewis ◽

Donna O. Linton ◽

...

Keyword(s):

Plant Height ◽

Linear Increase ◽

Residual Phosphorus ◽

High Phosphorus ◽

Phosphorus Fertilizers ◽

Linear Effects ◽

Plant Stand ◽

Tissue Nitrogen ◽

Phosphorus Levels ◽

Tissue Phosphorus

Preplant levels of 5N-4.4P-12.4K (-5S or -9S) and sidedress applications of CaNO3 were evaluated in onion (Allium cepa L.). In addition, high phosphorus fertilizers 18N-20.1P-0K (diammonium phosphate) and liquid 10N-14.8P-0K were evaluated on sites with and without high residual phosphorus levels as well as their interaction with onion cultivars. Sidedress applications of CaNO3 had a significant effect on plant height and an interaction with preplant 5N-4.4P-12.4K fertilizer. There was a linear increase in plant height with increasing applications of 5N-4.4P-12.4K from 0 to 1569 kg·ha-1 with the CaNO3 applications. Neither 5N-4.4P-12.4K nor CaNO3 applications affected stand count. 5N-4.4P-12.4K fertilizer had significant linear effects on tissue potassium and sulfur. Tissue nitrogen and calcium increased with CaNO3 applications while phosphorus, potassium, and sulfur decreased. CaNO3 also had a positive effect on suitability for transplanting. There was an interaction effect between 5N-4.4P-12.4K and CaNO3 for tissue phosphorus levels. There was a linear decrease in tissue phosphorus levels with increasing amounts of 5N-4.4P-12.4K fertilizer with the sidedress CaNO3 treatments. High phosphorus fertilizers applied directly after seeding had no effect on plant stand or plant height either on soils with or without high residual phosphorus in 1998. In 1999, 10N-14.8P-0K fertilizer had a significant effect on plant height while 18N-20.1P-0K did not. Based on this study, we conclude that additional applications of high phosphorus fertilizers applied post seeding are not required due to the relatively warm conditions found in southeast Georgia in September. There were differences between cultivars, but cultivar× high phosphorus fertilizer interactions were nonsignificant.

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QTL Analysis for Plant Height and Heading Date in Rice under Two Nitrogen Levels

ACTA AGRONOMICA SINICA ◽

10.3724/sp.j.1006.2011.01525 ◽

2011 ◽

Vol 37 (9) ◽

pp. 1525-1532 ◽

Cited By ~ 1

Author(s):

Yue FENG ◽

Rong-Rong ZHAI ◽

Li-Yong CAO ◽

Ze-Chuan LIN ◽

Xing-Hua WEI ◽

...

Keyword(s):

Plant Height ◽

Qtl Analysis ◽

Heading Date ◽

Nitrogen Levels

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QTLs for Plant Height and Heading Date in Rice Under Two Nitrogen Levels

Acta Agronomica Sinica ◽

10.1016/s1875-2780(11)60042-4 ◽

2011 ◽

Vol 37 (9) ◽

pp. 1525-1532 ◽

Cited By ~ 1

Author(s):

Yue FENG ◽

Rong-Rong ZHAI ◽

Li-Yong CAO ◽

Ze-Chuan LIN ◽

Xing-Hua WEI ◽

...

Keyword(s):

Plant Height ◽

Heading Date ◽

Nitrogen Levels

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The Effect of Guano Walet Fertilizer and Ratu Biogen Foliar Fertilizer on the Growth and Yield of Tomato (Lycopercicum esculentum Mill.) Monza Variety

AGRIFOR ◽

10.31293/af.v17i2.3611 ◽

2018 ◽

Vol 17 (2) ◽

pp. 231

Author(s):

Dian Kristina ◽

Abdul Rahmi

Keyword(s):

Plant Height ◽

Fertilizer Application ◽

Fruit Weight ◽

Factorial Experiment ◽

Growth And Yield ◽

Tomato Plants ◽

Foliar Fertilizer ◽

Randomized Design ◽

Completely Randomized Design ◽

The Village

This experiment aims to: (1) to study of the effect of guano walet fertilizer and Ratu Biogen foliar fertilizeras well as their interaction on the growth and yield of tomato plants; and (2) to find proper dosage of guano walet fertilizer and proper concentration of Ratu Biogen foliar fertilizer for better growth and yield of tomato plants.The research carried out from May 2014 to July 2014, in the Village Melak Ulu RT.20 Subdistrict Melak, West Kutai. It applied Completely Randomized Design with factorial experiment 4 x 4 and five replications. The first factor is the dosage of the guano walet fertilizer (G) consists of 4 levels, namely: no fertilizer application guano walet (g0), 10 Mg ha ̵ ¹, or 100 g of polybag ̵ ¹ (g1), 15 Mg ha ̵ ¹ or 150 g polibag ̵ ¹ (g2), 20 Mg ha ̵ ¹ or 200 g polybag ̵ ¹ (g3). The second factor is the concentration of Ratu Biogen (B) consists of 4 levels: without POC Ratu Biogen (b0), 1 ml 1 ̵ ¹ water (b1), 2 ml 1 ̵ ¹ water (b2), 3 ml 1 ̵ ¹ water (b3).Result of the research revealed that : (1) application of guano walet fertilizer affect very significantly on plant height at 14, 28, 42 days after planting, the number of fruits per plant, and weight of fruit per plant, but the effect is not significant on the days of plant flowered and days of plant harvest. The best production is attained by the 200 g polybag-1 fertilizer guano walet (g3), namely 282,50 plant-1, In reverse, the least production is attained by without fertilizer guano walet (g0), namely 227,25 g plant ̵ ¹; (2) application of Ratu Biogen foliar fertilizer after significantly to very significantly on the plant height at 14 days after planting and the number of fruits per plant, but the effect is no significant on the plant height at 28 and 42 days after planting, days of plant flowered, days of plant harvest, and weight of fruit per plant; and (3) interaction between guano walet fertilizer and Ratu Biogen foliar fertilizer no significantly on the plant height at 14, 28, and 42 days after planting, days of plant flowered, days of plant harvest, number of fruit per plant, and fruit weight per plant.

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Influence of Phosphorus Fertilizer Rates on Yield and Yield Components of Faba Bean (Vicia faba L.) Varieties in Lemu Bilbilo District of Arsi Zone, Southeastern Ethiopia

International Journal of Plant & Soil Science ◽

10.9734/ijpss/2019/v28i330106 ◽

2019 ◽

pp. 1-11

Author(s):

Gobena Negasa ◽

Bobe Bedadi ◽

Tolera Abera

Keyword(s):

Plant Height ◽

Faba Bean ◽

Yield Components ◽

Biomass Yield ◽

Rate Of Return ◽

Phosphorus Fertilizer ◽

Higher Plant ◽

Marginal Rate ◽

Yield And Yield Components ◽

Arsi Zone

Faba bean production is a common practice in Lemu Bilbilo areas. However, faba bean productivity is affected and limited by poor soil fertility and lack of alternative technologies such as application of optimum phosphorus fertilizer for different faba bean varieties. In view of this, a field experiment was conducted on farmer’s field during the 2017 main cropping season at Lemu Bilbilo with the objectives to determine the response of faba bean varieties to different rates of P fertilizer and its influence on yield and yield components of faba bean varieties. The treatments include three faba bean varieties (Tumsa, Gebelcho and Dosha) and five phosphorus levels (0, 10, 20, 30 and 40 kg P ha-1) from Triple Super Phosphate. The experiment was laid out in a randomized complete blocked design with 3 x 5 factorial arrangements with three replications. Significantly (P<0 .05) higher plant height was recorded from Tumsa variety. Total productive tillers per plant, thousand seed weights, and harvest index and biomass yield of faba bean were significantly affected by main effect of varieties. Higher total productive tillers per plant (1.53) were obtained from application of 30 kg P ha-1. Higher plant height (153 cm), biomass yield (14158 kg ha-1) and grain yield (6323 kg ha-1) were obtained from application of 40 kg P ha-1. Application of 10, 20 and 30 kg P ha-1 gave marginal rate of return of 1404694 and 502% for faba bean production, which are well above the minimum acceptable rate of return. Therefore, application of 20 kg ha-1 of P with Tumsa, Gebelcho and Dosha faba bean varieties were proved to be productive and superior both in seed yield as well as economic advantage and recommended for faba bean production in Lemu Bilbilo area. Further study should be conducted in the future both over locations and years in order to give full recommendation for practical application.

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Survival and Growth of Seedlings of Three Sclerophyll Species at High Levels of Phosphorus and Nitrogen

Australian Journal of Botany ◽

10.1071/bt9760681 ◽

1976 ◽

Vol 24 (6) ◽

pp. 681 ◽

Cited By ~ 50

Author(s):

RH Groves ◽

K Keraitis

Keyword(s):

Sand Culture ◽

Growth Responses ◽

High Nitrogen ◽

Nutrient Contents ◽

Rooting Zone ◽

Nitrogen Levels ◽

High Phosphorus ◽

Survival And Growth ◽

Four Levels ◽

Growth Of Seedlings

Seedlings of Banksia serrata, Acacia suaveolens and Eucalyptus pilularis were grown in sand culture for 3-4 months at four levels of phosphorus (0, 5, 50, and 100 ppm) and three of nitrogen (0, 25 and 250 ppm) applied gradually in all combinations. B.serrata died at high phosphorus-high nitrogen levels, A.suaveolens died with high phosphorus irrespective of the nitrogen level, and E. pilularis did not survive high phosphorus or high nitrogen levels. There were differences between species in their growth responses to increasing levels of phosphorus and nitrogen. Dry weights of seedlings were greatest at P5N25 for B.serrata, at P5N250 for A.suaveolens, and at P5N250 for E.pilularis. Shoot phosphorus concentrations greater than 1% were directly associated with 'toxicity' and death of A.suaveolens seedlings only, and not of the other two species. The species differ in the weights and nutrient contents of their seeds, and this is discussed in relation to the different responses obtained. Growth of sclerophyll species on areas subject to disturbance (e.g. sand-mining) will be determined in large part by the levels of phosphorus and nitrogen applied and the rate at which nutrients are leached from the rooting zone.

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INFLUENCE OF FOLIAR NITROGEN LEVELS ON SURVIVAL, DEVELOPMENT, AND REPRODUCTION OF WESTERN SPRUCE BUDWORM, CHORISTONEURA OCCIDENTALS (LEPIDOPTERA: TORTRICIDAE)

The Canadian Entomologist ◽

10.4039/ent11723-1 ◽

1985 ◽

Vol 117 (1) ◽

pp. 23-32 ◽

Cited By ~ 31

Author(s):

J. Wayne Brewer ◽

John L. Capinera ◽

Robert E. Deshon ◽

Mary L. Walmsley

Keyword(s):

Larval Mortality ◽

Spruce Budworm ◽

Dry Weight ◽

Douglas Fir ◽

Nitrogen Level ◽

Pupal Weight ◽

Western Spruce Budworm ◽

Foliar Nitrogen ◽

Nitrogen Levels ◽

White Fir

AbstractThe influence of nitrogen levels in foliage of white-fir, Abies concolor, and Douglas-fir, Pseudotsuga menziesii, seedlings on various biological characteristics of the western spruce budworm, Choristoneura occidentalis Freeman, was studied. Seedlings were grown under greenhouse conditions and provided with nutrient solutions to maintain five foliar nitrogen levels ranging from 1.29 to 4.42% dry weight for white fir and 1.43 to 3.94% for Douglas fir. Larvae confined to treated seedlings were monitored through the next generation. Larval mortality was higher, and development time longer, at both upper and lower extremes of foliar nitrogen than at mid-level. Mean pupal weight was significantly greater for larvae reared on white fir with the mid-range foliar-nitrogen level. Mean number, and weight, of eggs laid were highest when larvae fed on foliage from the mid-range nitrogen level. Total number of larvae produced was lowest at the high and low extremes of foliar nitrogen levels.

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Effects of Site, Genotype and Subsequent Harvest Rotation on Willow Productivity

Agriculture ◽

10.3390/agriculture10090412 ◽

2020 ◽

Vol 10 (9) ◽

pp. 412 ◽

Cited By ~ 4

Author(s):

Mariusz Jerzy Stolarski ◽

Michał Krzyżaniak ◽

Dariusz Załuski ◽

Józef Tworkowski ◽

Stefan Szczukowski

Keyword(s):

Survival Rate ◽

Plant Height ◽

Biomass Yield ◽

High Impact ◽

The Other ◽

Plant Survival ◽

Dry Biomass ◽

The Mean ◽

Very High ◽

Biometric Features

Perennial crops harvested in short rotations provide substantial amounts of biomass. This study determined the survival rate, biometric features and yield of fresh and dry biomass of 15 willow genotypes (including seven varieties and eight clones), cultivated at two different sites in two consecutive three-year harvest rotations. The study revealed the very high impact of the genotype (81% of the total variance) on the willow yield. The harvest rotation, along with the genotype, had a significant impact on the plant survival rate and the number of shoots per stool. Willow biomass was mainly affected by the plant height, its survival rate and shoot diameter. The significantly highest fresh (106 Mg ha−1) and dry biomass yield (54.0 Mg ha−1) was obtained from the Żubr variety of S. viminalis, which distinguished this variety from the other genotypes. The mean yield for the best three and five genotypes was 13% and 17% lower, respectively, and the mean yield for the whole experiment was 37% lower compared to the mean yield of the best variety (Żubr). Therefore, the choice of a willow genotype is of key importance for successful willow production.

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Enhanced-efficiency phosphorus fertilizer: promising technology for carrot crop

Horticultura Brasileira ◽

10.1590/s0102-053620180411 ◽

2018 ◽

Vol 36 (4) ◽

pp. 492-497

Author(s):

Adilson Pelá ◽

Matheus A Ribeiro ◽

Rafael U Bento ◽

Luiz HB Cirino ◽

Roberto A Reis Júnior

Keyword(s):

Plant Height ◽

Root Length ◽

Phosphate Fertilizer ◽

Root Diameter ◽

Additional Treatment ◽

Mineral Fertilizers ◽

Phosphorus Fertilizer ◽

Agronomic Efficiency ◽

P Content ◽

Phosphate Fertilization

ABSTRACT Several studies were carried out to evaluate polymer-coated mineral fertilizers; however, few studies, on the agronomic efficiency of these fertilizers in the field in carrot crop, are available. Thus, we aimed to evaluate the use of enhanced-efficiency phosphorus fertilizer coated with polymers in carrot (Daucus carota). The experiment was carried out in field, in Ipameri-GO. The experimental design was randomized blocks, arranged in an incomplete factorial design (5x2)+1, considering five phosphorus doses (150, 300, 450, 600 and 750 ha-1 kg P2O5), two P sources [conventional MAP (monoammonium phosphate) and polymer-coated MAP (Policote)] and one additional treatment (control, without P). The evaluated traits were plant height, root length, root diameter, total productivity, marketable root classes, agronomic efficiency of phosphate fertilization and P content in the roots. Data were submitted to analysis of variance and regression. Phosphate fertilization did not influence the P content in carrot roots, but increased plant height, root length and diameter and yield of carrot roots. Polymer-coated phosphate increased plant height, length, diameter and productivity of carrot roots, when compared to conventional fertilizer. Carrot productivity was, on average, 15.5% higher with polymer-coated P source (39.42 t ha-1) than with the conventional P source (34.11 t ha-1). Marketable roots were also improved with the use of polymer-coated phosphate fertilizer. Phosphate fertilizer coated with polymer increased the agronomic efficiency of phosphate fertilization in the carrot crop.

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Fabian two-row winter barley

Czech Journal of Genetics and Plant Breeding ◽

10.17221/11/2013-cjgpb ◽

2013 ◽

Vol 49 (No. 4) ◽

pp. 175-177

Author(s):

Z. Nesvadba ◽

J. Špunar ◽

M. Kadlíková

Keyword(s):

Czech Republic ◽

Powdery Mildew ◽

Plant Height ◽

Cold Hardiness ◽

Medium Density ◽

The Czech Republic ◽

Variety Trials ◽

Growing Conditions ◽

Moderate Resistance ◽

Very High

Fabian is a medium-late two-row feedin barley of winter habit developed at Agrotest Fyto, Ltd., Kroměříž, Czech Republic (breeders’ rights holder) and registered in the Czech Republic in 2011. In the Official Variety Trials it showed high grain yields under intensive growing conditions (104.5%) and medium yields under low input conditions (101.1%). Fabian has the highest cold hardiness of the registered two-row winter barleys and regenerates very well in the spring. Its resistance to powdery mildew is very high (score 8.2 on a 1–9 scale). It has medium plant height, moderate resistance to lodging and large yellow kernel. The spike is long and of medium density.

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