scholarly journals Soil Zinc Fertilization of ‘Wichita’ Pecan Trees Growing Under Alkaline Soil Conditions

HortScience ◽  
2009 ◽  
Vol 44 (6) ◽  
pp. 1736-1740 ◽  
Author(s):  
Humberto Núñez-Moreno ◽  
James L. Walworth ◽  
Andrew P. Pond ◽  
Michael W. Kilby
Keyword(s):  
Block Design ◽  
Nutrient Concentrations ◽  
Soil Conditions ◽  
Alkaline Soil ◽  
Tree Roots ◽  
Design Data ◽  
Cross Sectional ◽  
Ongoing Research ◽  
Zn Uptake ◽  
Foliar Nutrient

The effect of soil banding zinc sulfate and zinc (Zn)-EDTA was evaluated over a period of 4 years on established ‘Wichita’ pecans [Carya illinoinensis (Wangenh.) K. Koch] growing in alkaline, calcareous soil. Treatments evaluated were ZnSO4 applied at 74 kg Zn/ha and Zn-EDTA at 19 kg Zn/ha. These materials were applied just once on 23 Mar. 2005. Fertilizers were injected in two bands placed 1.2 m from either side of the trunk of the tree and 18 cm deep. Treatments were replicated four times in a randomized complete block design. Data collected included foliar Zn concentrations throughout the season, midseason foliar nutrient concentrations, leaflet growth, nut yield, and nut quality. Significant differences in foliar Zn levels were found 1 month after application of Zn-EDTA. Differences also were noted during the next 3 years on ≈25% of the sampling dates. Yields of in-shell pecans averaged 2800 kg·ha−1 during the 3 years of harvest but were unaffected by treatments. Nut quality also was unaffected. Nut kernel percentage was very high, ranging from 61.2% to 63.6% during the study. Growth, measured as leaflet area and trunk cross-sectional area, was unaffected by Zn application. Chlorophyll index ranged from 47.5 to 48.0 in 2007 and from 44.7 to 45.4 in 2008 and was unaffected by applied treatments. Zn-EDTA increased Zn uptake slightly by ‘Wichita’ pecan trees in alkaline, calcareous conditions during 3 years after one soil band injection. Ongoing research on potted pecan trees (with the same soil used in the present study) suggests that Zn-EDTA can very effectively increase Zn uptake if placed in close proximity to the tree roots. Additional research is needed to refine application and placement methods in these types of soils to produce a more effective and consistent response.

scholarly journals Humic acid and nitrogen dose application in corn crop under alkaline soil conditions

2021 ◽  
Vol 25 (10) ◽  
pp. 657-663
Author(s):  
Kamran Azeem ◽  
Farah Naz ◽  
Arshad Jalal ◽  
Fernando S. Galindo ◽  
Marcelo C. M. Teixeira Filho ◽  
...  
Keyword(s):  
Organic Matter ◽  
Humic Acid ◽  
Grain Yield ◽  
Block Design ◽  
N Uptake ◽  
Soil Conditions ◽  
Alkaline Soil ◽  
Total N ◽  
Positive Effects ◽  
N Concentration

ABSTRACT Humic acid (HA), as a bio-stimulant and a major component of organic matter (OM), can improve plant physiology, soil fertility, and nutrient availability, mainly in low OM soils. Nitrogen (N) is one of the most important nutrients that affect several metabolic and biochemical activities, leading to improved plant development. This study was conducted to investigate the combined effect of HA and N doses on soil organic matter (SOM) and total N concentration, N uptake, corn growth, and grain yield under conventional tillage at Peshawar, Pakistan. Treatments were tested in a randomized block design with four replicates arranged in a factorial scheme 3 × 4 + 1. The respective doses of HA (1.5, 3,0 and 4.5 kg ha-1) were applied at the corn sowing, whereas N doses (80, 120, 160, and 200 kg ha-1) were applied in three splits (1/3 at sowing, 1/3 at the V5 stage, and remaining 1/3 at the tasselling stage) with one control (no HA and N). The application of HA, regardless of the applied doses, had positive effects on SOM, N concentration, N uptake, corn development, and grain yield. However, the application of 4.5 kg ha-1 of HA was the most effective in promoting SOM (0.83%) and total N (0.31%), shoot biomass (10610 kg ha-1), N uptake (1.13%), and grain yield (3780 kg ha-1), even when combined with the N doses of 80, 120 and 160 kg N ha-1. Increasing N doses positively influenced SOM, N concentration, N uptake, and corn growth. The greatest grain yield was obtained at 150 kg ha-1 of N regardless of HA applied doses.

scholarly journals PRODUCTIVE PERFORMANCE OF ‘FUJI’ APPLE TREES ON ‘JM’ SERIES ROOTSTOCKS, IN SÃO JOAQUIM/SC

2017 ◽  
Vol 39 (spe) ◽  
Author(s):  
MATEUS DA SILVEIRA PASA ◽  
ALBERTO FONTANELLA BRIGHENTI ◽  
JOSÉ MASANORI KATSURAYAMA ◽  
CARINA PEREIRA DA SILVA ◽  
MARLISE NARA CIOTTA ◽  
...  
Keyword(s):  
Block Design ◽  
Fruit Weight ◽  
Soil Conditions ◽  
Apple Rootstocks ◽  
Apple Trees ◽  
Cross Sectional ◽  
Yield Efficiency ◽  
Randomized Complete Block Design ◽  
Fuji Apple ◽  
Tree Production

ABSTRACT Worldwide, research has developed new apple rootstocks that induce higher yields, pest resistance and adaptation to different climatic and soil conditions. Thus, the performance of these new rootstocks in the conditions of the main regions that grow apples should be investigated. The objective of this study was to evaluate the performance of ‘Fuji’ trees on different rootstocks of JM series and M.7 in the region of São Joaquim, SC. The experiment was performed from 2010 to 2015. Plant material consisted on the cultivar Fuji grafted on the rootstocks JM.2, JM.3, JM.5, JM.7, JM.8 and M.7, planted as single axis trees in the winter of 2002, and spaced at 5 x 1.5m. Trees were trained in a central-leader system and arranged in a randomized complete block design with four replicates. The number of fruits per tree, production per tree, yield, yield efficiency, fruit weigh, and trunk cross sectional area were evaluated. The results showed that the yield of ‘Fuji’ apple trees is greater with the rootstocks JM.3, JM.7, JM.8, and M.7. The rootstocks JM.2, JM.5, JM.7 and JM.8 induce similar vigor as M.7. The results also show that fruit weight is little affected by rootstock.

scholarly journals Effects of Organic and Inorganic Fertilizers on Growth and Nutrient Uptake by Young Cacao (Theobroma cacao L.)

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Jerome A. Dogbatse ◽  
Alfred Arthur ◽  
Godfred K. Awudzi ◽  
Amos K. Quaye ◽  
Sampson Konlan ◽  
...  
Keyword(s):  
Soil Fertility ◽  
Nutrient Uptake ◽  
Seedling Survival ◽  
Block Design ◽  
The Other ◽  
Nutrient Concentrations ◽  
Seedling Mortality ◽  
Cross Sectional ◽  
Soil P ◽  
Percentage Survival

Sustainable cacao cultivation in Ghana has been seriously hampered by high seedling mortality due to the low soil fertility of lands used for the establishment of new cacao farms. Alleviating the low soil fertility to enhance sustainable cacao cultivation requires the use of fertilizers. A study was therefore conducted at the Cocoa Research Institute of Ghana to determine the effect of integrated application of poultry manure (PM) and sulphate of ammonia (SOA) fertilizers on survival, growth, and nutrient uptake by cacao seedlings under marginal field conditions. A randomized complete block design with four replications was used to evaluate the effects of six treatments. Traits assessed were percentage survival, height, trunk cross-sectional area (TCSA), and nutrient uptake. Results from the study showed no significant differences in soil N and K among the treatments. PM-amended plots had significantly higher soil P than nonamended control and SOA alone. Seedling survival rate ranged from 73.3 to 89.3% with a higher proportion of surviving plants in PM amended soils. The application of PM alone and its combination with SOA improved growth. Cacao trees of T4 (75% recommended dosage of SOA + PM) had the largest TCSA increment, which was significantly different from the other soil treatments. Leaf nutrient concentrations in cacao of T4 were higher than the other soil treatments. It was therefore concluded that T4 could be used during cacao establishment in marginal areas for improved plant survival and growth.

HUBUNGAN DUKUNGAN KELUARGA, PENGETAHUAN, DENGAN KEAKTIFAN LANJUT USIA (Lansia) MENGIKUTI KEGIATAN POSYANDU LANSIA DI WILAYAH PUSKESMAS GADING SURABAYA

2020 ◽  
Vol 4 (1) ◽  
pp. 1-6
Author(s):  
NINDY VARA MEIGIA
Keyword(s):  
Health Center ◽  
Family Support ◽  
Elderly People ◽  
Simple Random Sampling ◽  
The Elderly ◽  
Design Data ◽  
Cross Sectional ◽  
Bivariate Data ◽  
Quality Regulation ◽  
Cross Sectional Design

Minimum Standards Service is basic service quality regulation that is entitled to be obtained by every citizen. Elderly people must obtain 100% health services. Various factors can lead to low visits to the elderly posyandu in the Gading Puskesmas area in 2017. Objective: to find out the relationship between family support, knowledge, and elderly activities in the elderly posyandu in Gading Surabaya puskesmas. Method: The type of research is observational analytic with a cross-sectional design. Data processing and analysis is done by univariate and bivariate. Data collection techniques by conducting simple random sampling with a sample of 94 elderly people. Location and time of research from December 2018 at the posyandu in the Gading Surabaya health center area. Results: There is a significant value of 0,000 <0,05, so it can be concluded is have a relationship with family support, knowledge of elderly with activity following the elderly posyandu at Gading Surabaya health center

Kajian Kandungan Fe dalam Air Tanah Terhadap Kadar Ekskresi Yodium dalam Urin pada Anak Sekolah di Desa Cerme Kecamatan Panjatan Kabupaten Kulon Progo

2017 ◽  
Vol 19 (1) ◽  
pp. 7-11
Author(s):  
Vivi Linda Fristianti ◽  
Nur Hidayat ◽  
Slamet Iskandar
Keyword(s):  
Elementary School ◽  
Ground Water ◽  
School Children ◽  
Laboratory Data ◽  
Simple Random Sampling ◽  
Optimal Level ◽  
The Body ◽  
Design Data ◽  
Cross Sectional ◽  
Fe Content

Background : IDD problem is a serious problem, 33% of districts in Indonesia are endemic, 21% of endemic mild, moderate endemic 5% and 7% by weight endemic. Urine Iodine Excretion (EYU) illustrates the iodine intake of a person, because 90% of the iodine that enter the body are excreted through the urine. Blocking agents are substances certain minerals such as iron, manganese and calcium, which can bind iodine in groundwater. Objectives : This study aims to determine the relationship of Fe content in ground water sources against EYU levels in school children in the village of the District Cerme Panjatan Kulon Progo. Methods : An observational analytic research with cross sectional design. Data collection is done in May - June 2015. Location research Elementary School Cerme, District Panjatan Kulon Progo. The subjects of the study as many as 34 children in elementary school classroom Cerme 3, 4 and 5 were taken by simple random sampling. Well water and urine samples taken students then tested the iron in the Central Health Laboratory test Yogyakarta and iodine in urine in Magelang BP2GAKY Laboratory. Data analysis using Spearman Range test with significancy level : 0.05. Result : Fe content in the ground water is below the normal threshold is <0.3 mg / L. While levels EYU school children who are under the optimal level of 5.9%, the optimal level of 32.4%, and the optimum levels above 61.8% (optimal: 100 - 199μg / L). Conclusion : There was no significant relationship between the Fe content in groundwater with levels of EYU in school children in District Panjatan Kulon Progo (p = 0.447).   Keywords: Fe, EYU

scholarly journals Biochar and urease inhibitor mitigate NH3 and N2O emissions and improve wheat yield in a urea fertilized alkaline soil

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Khadim Dawar ◽  
Shah Fahad ◽  
M. M. R. Jahangir ◽  
Iqbal Munir ◽  
Syed Sartaj Alam ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Grain Yield ◽  
Block Design ◽  
N Uptake ◽  
Nitrous Oxide Emissions ◽  
N2o Emissions ◽  
Urease Inhibitor ◽  
Alkaline Soil ◽  
Total N ◽  
N Assimilation

AbstractIn this study, we explored the role of biochar (BC) and/or urease inhibitor (UI) in mitigating ammonia (NH3) and nitrous oxide (N2O) discharge from urea fertilized wheat cultivated fields in Pakistan (34.01°N, 71.71°E). The experiment included five treatments [control, urea (150 kg N ha−1), BC (10 Mg ha−1), urea + BC and urea + BC + UI (1 L ton−1)], which were all repeated four times and were carried out in a randomized complete block design. Urea supplementation along with BC and BC + UI reduced soil NH3 emissions by 27% and 69%, respectively, compared to sole urea application. Nitrous oxide emissions from urea fertilized plots were also reduced by 24% and 53% applying BC and BC + UI, respectively, compared to urea alone. Application of BC with urea improved the grain yield, shoot biomass, and total N uptake of wheat by 13%, 24%, and 12%, respectively, compared to urea alone. Moreover, UI further promoted biomass and grain yield, and N assimilation in wheat by 38%, 22% and 27%, respectively, over sole urea application. In conclusion, application of BC and/or UI can mitigate NH3 and N2O emissions from urea fertilized soil, improve N use efficiency (NUE) and overall crop productivity.

scholarly journals Calcium-Enriched Animal Manure Alleviates the Adverse Effects of Salt Stress on Growth, Physiology and Nutrients Homeostasis of Zea mays L.

Plants ◽  
2019 ◽  
Vol 8 (11) ◽  
pp. 480 ◽  
Author(s):  
Bushra Niamat ◽  
Muhammad Naveed ◽  
Zulfiqar Ahmad ◽  
Muhammad Yaseen ◽  
Allah Ditta ◽  
...  
Keyword(s):  
Nutrient Uptake ◽  
Soil Salinity ◽  
Crop Production ◽  
Growth Yield ◽  
Growth And Yield ◽  
Control Treatment ◽  
Soil Conditions ◽  
Alkaline Soil ◽  
Sodic Soil ◽  
Growth Physiology

Soil salinity and sodicity are among the main problems for optimum crop production in areas where rainfall is not enough for leaching of salts out of the rooting zone. Application of organic and Ca-based amendments have the potential to increase crop yield and productivity under saline–alkaline soil environments. Based on this hypothesis, the present study was conducted to evaluate the potential of compost, Ca-based fertilizer industry waste (Ca-FW), and Ca-fortified compost (Ca-FC) to increase growth and yield of maize under saline–sodic soil conditions. Saline–sodic soil conditions with electrical conductivity (EC) levels (1.6, 5, and 10 dS m−1) and sodium adsorption ratio (SAR) = 15, were developed by spiking soil with a solution containing NaCl, Na2SO4, MgSO4, and CaCl2. Results showed that soil salinity and sodicity significantly reduced plant growth, yield, physiological, and nutrient uptake parameters. However, the application of Ca-FC caused a remarkable increase in the studied parameters of maize at EC levels of 1.6, 5, and 10 dS m−1 as compared to the control. In addition, Ca-FC caused the maximum decrease in Na+/K+ ratio in shoot up to 85.1%, 71.79%, and 70.37% at EC levels of 1.6, 5, and 10 dS m−1, respectively as compared to the control treatment. Moreover, nutrient uptake (NPK) was also significantly increased with the application of Ca-FC under normal as well as saline–sodic soil conditions. It is thus inferred that the application of Ca-FC could be an effective amendment to enhance growth, yield, physiology, and nutrient uptake in maize under saline–sodic soil conditions constituting the novelty of this work.

scholarly journals The Correlation amongst Salty Taste Preference and Overactive Bladder Symptoms in Female Individuals

2021 ◽  
Vol 18 (2) ◽  
pp. 518
Author(s):  
Jin-Won Noh ◽  
Kyoung-Beom Kim ◽  
Jae Heon Kim ◽  
Young Dae Kwon
Keyword(s):  
Dietary Habits ◽  
Sodium Intake ◽  
Taste Preference ◽  
Close Correlation ◽  
Design Data ◽  
Cross Sectional ◽  
Salty Taste ◽  
Multiple Variables ◽  
Storage Symptom ◽  
And Storage

Sodium intake could have an indirect effect on storage symptoms as it is an established fact that it has a correlation to hypertension (HTN). However, clinical support for the correlation of sodium intake to STORAGE symptom remains scarce. Therefore, the present work sought to determine how sodium intake and OAB symptom seriousness were correlated in female individuals based on a cross-sectional research design. Data from 115,578 respondents chosen from 228,921 individuals enrolled in the Korean Community Health Survey (KCHS) were subjected to cross-sectional analysis. The correlation amongst sodium intake and STORAGE symptom was assessed on the basis of estimates of the incidence rate ratio (IRR) with 95% confidence interval (CI). Furthermore, joint correspondence analysis (JCA) was conducted to investigate how a predilection for salty taste was associated with several factors, including STORAGE symptom, socio-economic factors, comorbidities, and dietary habits. By comparison to respondents indicating a neutral predilection for salty taste, those who indicated a predilection for bland and salty taste were 7.1% (IRR = 1.071, p < 0.001, 95% CI = 1.045–1.097) and 20.5% (IRR = 1.205, p < 0.001, 95% CI = 1.177–1.234) more probable to experience severe STORAGE symptom, within an adjusted model with multiple variables. JCA confirmed the existence of a correlation between predilection for salty taste and STORAGE symptom. A close correlation was established to exist between predilection for salty taste and lower urinary tract symptoms (LUTS), such as voiding and storage symptoms and nocturia. Moreover, sodium intake was found to be a risk factor for LUTS seriousness in both excessive and deficient amount.

scholarly journals Enacting Feminist Methodologies in Research Toward Reproductive Justice

2021 ◽  
Vol 20 ◽  
pp. 160940692110161
Author(s):  
Krista Johnston ◽  
Christiana MacDougall
Keyword(s):  
Research Question ◽  
Research Process ◽  
Feminist Research ◽  
Clear Understanding ◽  
Reproductive Justice ◽  
Design Data ◽  
Related Services ◽  
Ongoing Research ◽  
And Gender ◽  
Political Praxis

Reporting on the development of an ongoing qualitative research project with clients of midwifery care in New Brunswick, Canada, this article details the ways that methodology is complexly interwoven with political praxis. Working through the development of this project, this article models one way to enact politically engaged feminist research at each stage of the research process, from developing the research question, through research design, data collection, analysis, and theory generation. In the process, three core principles of feminist research methodologies are extended: co-construction of knowledge, researcher reflexivity, and reciprocal relationships in research. This research is caught up in and responds to a fraught political context where supports for reproductive healthcare are limited, and midwifery, abortion, and gender-affirming care are all framed as “fringe” services that exceed the austerity budget of the province. Participants engaged in this study with a clear understanding of this political terrain and approached interviews as an opportunity to share their experiences, and to advocate for the continuation and expansion of midwifery and related services in the province. Through the research process, it has become evident that midwifery must be understood as part of the struggle toward reproductive justice in this province. These reflections will direct further stages of the project, including ongoing research and dissemination.

scholarly journals Perception of the health surveillance users on the health electronic surveillance network (HESN), Saudi Arabia, 2016

2021 ◽  
Vol 96 (1) ◽  
Author(s):  
Zayid K. Almayahi ◽  
Fahad Alswaidi ◽  
Abdullah Alzahrani
Keyword(s):  
User Satisfaction ◽  
Cross Sectional Study ◽  
General Level ◽  
Electronic Surveillance ◽  
Surveillance Network ◽  
Design Data ◽  
Cross Sectional ◽  
Level Of Satisfaction ◽  
Composite Scores ◽  
And Control

Abstract Background The established aim of the Saudi Health Electronic Surveillance Network (HESN) is to support the prevention and control of different health events, and to facilitate the delivery of other public health programs. This study aims to evaluate the perceptions of active HESN users regarding its general performance through five major components: practicability, design, data and communication, technical support, and general impression. Methods A cross-sectional study was conducted in 2016 using a sample of active HESN users. Out of 1535 active users, 700 were randomly selected. A predesigned electronic questionnaire was sent to each participant via email which was completed by 485 participants. Different composite scores were calculated and compared to the sociodemographic and other technical variables. Results The mean age of the participants was 36.92 ± 9.12 (24–65 years), and 57.8% of the sample were male. Riyadh and the KSA’s eastern province represented the highest two regions of participation, at (18.4%) and (14.2%) participants, respectively. About 70.8% were generally satisfied with HESN, while 86.6%% believed that it is better than the traditional paper-work system. Participants who used to work more frequently expressed more level of satisfaction compared to those with minimal use per week or month (P ≤ 0.001). Internet speed displayed a significant association with the general level of satisfaction with HESN (P < 0.001). Additionally, users who accessed HESN with the Google Chrome browser displayed higher levels of satisfaction when compared to users who relied on other browsers (P = 0.003). Conclusion Presently, the level of user satisfaction with HESN is reasonable. However, to achieve optimal outcomes for HESN usage, improvements should be considered.

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