scholarly journals Soybean response to NPK fertilization of sowing and potassium at topdressing in soil of improved fertility

2017 ◽  
Vol 9 (2) ◽  
Author(s):  
Clério Hickmann ◽  
Álvaro Vilela de Resende ◽  
Carlos Alberto Silva ◽  
Julian Junior de Jesus Lacerda ◽  
Antonio Eduardo Furtini Neto ◽  
...  
Keyword(s):  
Experimental Design ◽  
Soil Fertility ◽  
Soybean Cultivar ◽  
Soybean Cultivars ◽  
Significant Difference ◽  
Additional Input ◽  
Productive Potential ◽  
Npk Fertilization

The introduction of indeterminate habit soybean cultivars expanded the possibilities of rotation or succession crops in producing areas of the Cerrado region, but it represents a less well-known component in the management of soil fertility. The objective of this work was to verify the agronomic and economic response of indeterminate habit soybean to the variations in NPK fertilization of sowing and potassium at topdressing in an improved fertility Latosol in Campos das Vertentes (MG). The experimental design was in randomized blocks, with subdivided plots in three replications. In plots, the treatments consisted of doses of 315 and 485 kg ha-1 of NPK 02-30-10 formulation in the sowing furrow and, in the subplots, the application of 0, 15, 30 and 45 kg ha-1 of K2O in topdressing at 21 days after sowing was tested. There is no significant difference in the variation of sowing fertilization, but productivity increases linearly by the additional input of potassium at topdressing. Soybean cultivar requires more K2O in maintenance fertilization in soil of improved fertility to express productive potential near 4 t ha-1, which is economically rewarding.

scholarly journals Agronomic performance and stability and of grain yield of f2 populations maize hybrids

2020 ◽  
Vol 13 (9) ◽  
pp. 1
Author(s):  
C. S. Bernini ◽  
P. S. Guimarães
Keyword(s):  
Experimental Design ◽  
Agronomic Traits ◽  
Agronomic Performance ◽  
Breeding Programs ◽  
Maize Hybrids ◽  
Maize Populations ◽  
Wide Range ◽  
Significant Difference ◽  
Different Types ◽  
Productive Potential

In Brazil, corn is grown in a wide variety of environments, investments and technologies, requiring the development of different types of hybrids. Breeding programs aim to identify genotypes with productive potential combined with better adaptation and stability. The objective of this work was to evaluate 28 hybrids of F2 maize populations, obtained from a complete diallel, together with the eight parent F2 populations and two commercial witnesses, regarding the main agronomic traits: male flowering (FM), plant height and ear ( AP and AE) and grain mass (MG) and estimate the parameters of adaptability and stability. The experiments were developed in 2008/2009 and 2009/2010, in three locations in the State of São Paulo (Campinas, Mococa and Palmital) and the experimental design used was the randomized blocks with three replications. Individual and joint analyzes of variance were performed, the means being grouped by the Scott-Knott test and the parameters of adaptability and stability estimated by the methods of Eberhart and Russell (1966) and Annicchiarico (1992). There was a significant difference (P <0.01) for treatments, locations and interaction between treatments in all evaluated characters. The average for MG was 7,515 kg ha-1, highlighting the hybrid P4 x P1 with MG of 9,095 kg ha-1. The average of hybrids was 40.5% higher than that of parental F2 populations. The hybrids of F2 populations differ in terms of adaptability and stability for MG, with the majority of hybrids (82%) showing general adaptability. The P4xP1 and P4xP2 hybrids are superior to MG and are promising for recommendation in a wide range of environments.

scholarly journals Production aspects of soybean cultivars in Machado region, south of Minas Gerais, Brazil

2019 ◽  
Vol 11 (2) ◽  
Author(s):  
Pedro Antonio Pires Lins da Silva ◽  
Roberto De Farias Filho
Keyword(s):  
Glycine Max ◽  
Experimental Design ◽  
Grain Yield ◽  
Plant Height ◽  
Minas Gerais ◽  
The Other ◽  
Animal Nutrition ◽  
Soybean Cultivars ◽  
Productive Potential ◽  
Glycine Max L

Due to its productive potential and importance in human and animal nutrition, soybeans occupya prominent position in Brazilian economy. Its cultivation in the south of Minas Gerais has beenincreasing compared to other crops; however, availability of adapted cultivars still low. Therefore,the present research was developed with the aim of evaluating different soybean cultivars productiveaspects in Machado region, Minas Gerais, in order to identify cultivars that can be recommended forcultivation in this region. The experimental design consisted of randomized complete block designwith four replications and six soybean cultivar treatments (5D6215 IPRO, 5D634 RR, NS 7709IPRO, NS 7300 IPRO, NS 7667 IPRO and NS 7200 RR). Seeding was conducted in the second weekof November/2015. It was verified that Machado region was suitable for soybean cultivation, since allcultivars presented plant height and the first legume height of insertion was favorable to mechanizedharvest. Cultivars 5D634 RR, NS 7200 RR and NS 7709 IPRO obtained the best grain yield resultswith 3.676,62, 3.612,45 and 3.377,90 kg ha⁻¹, respectively. Cultivars 5D6215 IPRO, 5D634RR, NS 7709 IPRO and NS 7200 RR are within the acceptable levels of lodging for mechanizedharvesting. On the other hand, cultivars 5D6215 IPRO and NS 7200 RR demonstrate an emergencyspeed higher than the other studied cultivars.Keywords: Glycine max (L.) Merrill. Grains Yield. Adaptability.

scholarly journals Effect of NPK fertilization on production and leaf nutrient content of eucalyptus minicuttings in nutrient solution

2011 ◽  
Vol 35 (1) ◽  
pp. 249-254
Author(s):  
José Pereira Carvalho Neto ◽  
Enilson de Barros Silva ◽  
Reynaldo Campos Santana ◽  
Paulo Henrique Grazziotti
Keyword(s):  
Experimental Design ◽  
Nutrient Solution ◽  
Plant Material ◽  
Management Practice ◽  
Dry Weight ◽  
Nutrient Content ◽  
Fractional Factorial ◽  
Nutrient Contents ◽  
Adequate Nutrient ◽  
Npk Fertilization

Adequate nutrient levels in plants vary according to the species or clone, age and management practice. Therefore, adjustments of the nutrient solution are often necessary according to the plant material for multiplication. This study aimed to evaluate the influence of NPK fertilization on production and leaf nutrient contents of eucalyptus cuttings in nutrient solution. The study was conducted from November 2008 to January 2009 in a greenhouse. The experimental design was completely randomized fractional factorial (4 x 4 x 4)½, with a total of 32 treatments with three replications. The treatments consisted of four doses of N (50, 100, 200 and 400 mg L-1) as urea, P (7.5, 15, 30 and 60 mg L-1) in the form of phosphoric acid and K (50, 100, 200 and 400 mg L-1) in the form of potassium chloride in the nutrient solution. Only the effect of N alone was significant for the number and dry weight of minicuttings per ministump, with a linear decreasing effect with increasing N levels. The highest number of cuttings was obtained at a dose of 50, 7.5 and 50 mg L-1 of N, P and K, respectively.

scholarly journals Nutritional Requirement of Sugarcane Cultivars

2018 ◽  
Vol 10 (4) ◽  
pp. 361 ◽  
Author(s):  
Vinicius S. G. da Silva ◽  
Mauro W. de Oliveira ◽  
Vilma M. Ferreira ◽  
Terezinha B. A. Oliveira ◽  
Elaine R. Galvão ◽  
...  
Keyword(s):  
Experimental Design ◽  
Block Design ◽  
Nutritional Requirements ◽  
Nutritional Requirement ◽  
Sugarcane Varieties ◽  
The Past ◽  
Randomized Block Design ◽  
Productive Potential ◽  
New Varieties

Sugarcane produces a large amount of biomass, extracts and accumulates high amounts of nutrients. In the literature the nutritional requirements for most cultivated varieties in the past are found, however there is little information on the new varieties currently planted. The objective of this study was to evaluate the nutritional requirement of four sugarcane varieties, currently very planted, in the cycles of plant-cane, first and second ratoon. The study was installed in a Yellow Oxisol. The experimental design was a randomized block design, with five replications, and four treatments: RB867515, RB92579, SP813250 and VAT90212. During maturation of the cane, in the three evaluation cycles, the productivity of natural biomass and the nutritional requirement of macronutrients of the varieties were determined. It was evidenced that the cultivars of sugarcane are of high productive potential and resemble the accumulation of biomass, observing a yield of 158, 128 and 107 t ha-1 in the cycles of plant-cane, first and second ratoon. Regarding the nutritional requirement, the varieties did not differ among them and expressed the following order of need in the plant-cane K > N > Ca > Mg > S > P, in the first and second ratoon, the sequence observed was K > N > Ca > S > Mg > P.

scholarly journals Effectiveness of Environmentally Friendly Mosquito Trap Contained Sugar Yeast Solution

2017 ◽  
Vol 12 (2) ◽  
pp. 270-276 ◽  
Author(s):  
Tutik Ida Rosanti ◽  
S Juwono Mardihusodo ◽  
Wayan T Artama
Keyword(s):  
Experimental Design ◽  
Environmentally Friendly ◽  
P Value ◽  
Mosquito Trap ◽  
Significant Difference ◽  
Rank Score ◽  
Quasi Experimental ◽  
Two Phases ◽  
Materials Used ◽  
Indoor And Outdoor

Environmentally friendly mosquitoes trap using common daily materials used by community may give hopes in reducing mosquitoes density. This study aims to determine the effectiveness of environmentally friendly mosquitoes trap made from bottle contained sugar yeast solution for reducing the number of trapped mosquitoes. This study consist of two phases and quasi experimental design was used. Mann Whitney test was used to determine the differences the number of trapped mosquitoes indoor and outdoor. The result showed p value 0,000 which was lower than ? value (0,05), so there was significant difference between the number of indoor and outdoor trapped mosquitoes. The average Rank score of outdoor mosquitoes trap (42,75) was more than indoor mosquitoes trap (18,25). We concluded that the mosquitoes trapped which contained of sugar-yeast solution was effective for trapping the mosquitoes especially outdoor .

scholarly journals Effectiveness of employing the enrichment activities of mental thinking on the development of thinking and mathematical achievement among the students of the second cycle Education has been essential: فاعلية توظيف الأنشطة الإثرائية للتفكير الذهني في تنمية التفكير والتحصيل الرياضي لدى طلاب الحلقة الثانية من التعليم الأساسي

2019 ◽  
Vol 3 (28) ◽  
Author(s):  
Salim Ahmed Saif Al-rashdi
Keyword(s):  
Experimental Design ◽  
Mathematical Thinking ◽  
Achievement Test ◽  
Cognitive Achievement ◽  
Control Group ◽  
Control Groups ◽  
Significant Difference ◽  
The Mean ◽  
And Control ◽  
Experimental Group

    The present study aimed at uncovering the effectiveness of employing the enrichment activities for mental thinking on the development of mathematical thinking and achievement among Grade 7 students. To achieve the research objectives, the researcher used the semi experimental design known as the design of the control group with the tribal and remote tests. In light of the experimental design, the average Grade 7 students tested the sample of the study in the second semester of 30 students who were divided into 15 students for the experimental group and 15 students for the control group after checking the validity and stability of the tools. The results showed that there was a statistically significant difference at (0.05) between the mean scores of the experimental and control groups in the cognitive achievement test related to the unit of Engineering in the second semester and the mathematical thinking test for the average of the experimental group. The results also showed a statistically significant difference) between the average scores of the experimental group students in the tribal and remote applications in the cognitive achievement test and the mathematical thinking test, and in favor of the average post-implementation. In the light of these results, the study presented a number of recommendations and suggestions.   ، ، ، ،

scholarly journals Soil preparation and NPK fertilization in the planting of five Atlantic Rainforest species in a clay extraction area

2020 ◽  
Vol 42 ◽  
pp. e36
Author(s):  
Ana Paula Braido Pinheiro ◽  
Adriele Dos Santos Jardim ◽  
João Vitor Garcia Silva ◽  
Adriano Alves Fernandes ◽  
Fábio Ribeiro Pires ◽  
...  
Keyword(s):  
Growth Rate ◽  
Experimental Design ◽  
Native Species ◽  
Atlantic Rainforest ◽  
Extraction Area ◽  
Absolute Growth Rate ◽  
Absolute Growth ◽  
Soil Preparation ◽  
Number Of Leaves ◽  
Npk Fertilization

The occurrence of degraded areas worldwide grows each year and measures must be taken to mitigate degradation and to recover these areas. The aim of this study was to assess the effect of soil preparation and NPK levels on the growth of five native species of the Atlantic Rainforest in clay extraction area. The experimental design was randomized block in a split-split plot arrangement with four replications. Subsoiling and scarification soil preparation represented main plots.  Doses of NPK 04-14-08: 0; 40; 80;160; and 320 g pit-1 represented subplots and Atlantic Rainforest native species represented sub-subplots. Absolute growth rate, stem diameter and number of leaves were evaluated, 210 days after planting. The type of soil preparation did not influence the development of the species. The best dose for Dalbergia ecastaphyllum, Inga laurina, Protium heptaphyllum and Psidium cattleyanum were 176.49, 150.18, 199.25 and 166.48 g pit-1 of NPK, respectively. Schinus terebinthifolius was highly responsive to planting fertilization, being recommended 320 g pit-1 of NPK. All species are indicated for area recovery.

scholarly journals PENGARUH PSIKOEDUKASI TERHADAP PENGETAHUAN INKLUSIVITAS PADA ANAK-ANAK DI YAYASAN PANTI ASUHAN Z

2021 ◽  
pp. 1429
Author(s):  
Agnes Nugrawati Salim ◽  
Atalya Debora ◽  
Farica Tanojo ◽  
Sriana Sihombing ◽  
Sylvia Dewi Suryaganda ◽  
...  
Keyword(s):  
Social Interaction ◽  
Experimental Design ◽  
Statistical Test ◽  
Test Results ◽  
Significant Difference ◽  
Post Test ◽  
Parametric Statistical Test ◽  
Age Range ◽  
Non Parametric

The research explored the effect of psychoeducation towards knowledge of inclusivity for children at Yayasan Panti Asuhan Z (Z orphanage). Yayasan Panti Asuhan Z (Z orphanage) has been chosen because there is a phenomenon where the typical children shows stigmatization towards the atypical children. There are various form of stigmatization, including physical, attitude, communication, social interaction, et cetera. This research involved 33 children at the Yayasan Panti Asuhan Z having an age range from 11-21 years old. The design used in this research is within-group experimental design. The result of this study indicates that there is an increase after being given psychoeducation. Researchers used the Mann-Whitney non parametric statistical test. The result has shown there is a significant difference between pre-test and post-test results (p < 0.05, N=28).Penelitian ini melihat pengaruh psikoedukasi terhadap pengetahuan inklusivitas pada anak-anak di Yayasan Panti Asuhan Z. Yayasan Panti Asuhan Z dipilih karena adanya fenomena stigmatisasi yang tidak disadari antara anak-anak tipikal terhadap anak-anak atipikal yang tinggal di panti tersebut. Bentuk stigmatisasi yang terjadi beragam, seperti fisik, sikap, cara berkomunikasi, cara berteman, dan sebagainya. Penelitian ini melibatkan 33 anak-anak di Yayasan Panti Asuhan Z yang berusia mulai dari 11 hingga 21 tahun. Desain yang digunakan pada penelitian ini adalah within-group experimental design. Hasil dari penelitian ini menunjukkan bahwa terdapat peningkatan pengetahuan inklusivitas yang ditandai dengan meningkatnya hasil pre-test setelah diberikan psikoedukasi. Peneliti menggunakan uji statistik non-parametrik Mann Whitney. Berdasarkan hasil uji beda tersebut, diketahui bahwa hasil pre-test dan post-test memiliki perbedaan yang signifikan (p < 0.05, N=28).

scholarly journals PENGARUH LATIHAN SELF TALK DAN IMAGERY RELAXATION TERHADAP KONSENTRASI DAN AKURASI TEMBAKAN 3 ANGKA CABANG OLAHRAGA BOLABASKET

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Riyan Pratama ◽  
Bayu Hardiyono ◽  
Ahmad Muchlisin Natas Pasaribu
Keyword(s):  
Data Analysis ◽  
Experimental Design ◽  
Significance Level ◽  
Skill Test ◽  
Test Speed ◽  
Analysis Technique ◽  
Significant Difference ◽  
Self Talk ◽  
Relaxation Exercises ◽  
Paired T Test

Abstract. This study aims to determine the effect of self-talk and Imagery relaxation exercises on the concentration and accuracy of 3point shoot in basketball. The method used in this study was an experimental design with two groups pretest-posttest design. The subjects in this study were 12 young basketball athletes with 6 male and 6 female with purposive sampling, who were divided into two groups of experimental groups with match subject ordinal pairing (MSOP) based on the ranking of tembakan 3 angka accuracy. The instrument used is a modification of the AAHPRED basketball skill test speed spot shoot (3 point accuracy shot) and concentration grid. The data analysis technique used is  paired t test with significance level ? = 0.05. The results of this study showed (1) there is  a significant difference in the effect of exercise between self talk and Imagery relaxation exercises on concentration with each having an increase of 27.71% (self talk) and 10.97% (imagery relaxation), (2) there os significant differences  effect between self-talk and Imagery relaxation exercises in increase of  the accuracy of  tembakan 3 angka with each increase 38.61% (self talk) and 20.88% (imagery relaxation). Exercise using self talk has better benefits in increasing concentration and accuracy of tembakan 3 angka accuracy.Keyword :Self talk, imagery relaxation, concentration, tembakan 3 angka

scholarly journals KEMAMPUAN DAYA BUNUH TERHADAP NYAMUK Anopheles Spp DIBEDAKAN MENURUT LAMA PAPARAN DAN JENIS INSEKTISIDA TAHUN 2015

2016 ◽  
Vol 35 (1) ◽  
pp. 32-35
Author(s):  
Ratih Kesuma Dewi ◽  
Aris Santjaka
Keyword(s):  
Experimental Design ◽  
Control Group ◽  
Control Group Design ◽  
Group Design ◽  
Significant Difference

Malaria merupakan masalah kesehatan masyarakat yang penting di Indonesia. Upaya pemberantasan yang dapat dilakukan yaitu menekan densitas vektor dengan penyemprotan atau dengan kelambu berinsektisida. Tujuan penelitian ini untuk mengetahui pengaruh lama paparan dan merk insektisida terhadap kematian nyamuk Anopheles Spp. Jenis penelitian yang dipilih eksperimen dengan kualifikasi true experimental design dengan desain penelitian the posttest-only control group design. Uji statistik menggunakan Block Anova kemudian dilanjutkan dengan uji LSD (Least Significant Difference). Hasil penelitian rata-rata kematian nyamuk pada merk insektisida B, H, V dan kontrol secara berturut-turut yaitu 19, 19.5, 18.75 dan 15. Rata-rata kematian nyamuk pada lama paparan 30’, 60’, 120’ dan 3600’ secara berturut-turut yaitu 2.75, 19.5, 20 dan 20. Hasil signifikasi menunjukan nilai 0,043 α (0,05) untuk lama paparan sehingga Ho ditolak artinya ada perbedaan ketahanan nyamuk, berdasarkan lama paparan yang berbeda dan nilai 0,308 α (0,05) untuk merk insektisida sehingga Ho diterima artinya tidak ada perbedaan merk insektisida dalam membunuh nyamuk Anopheles Spp. Hasil penelitian dapat disimpulkan suhu dan kelembaban nyaman untuk nyamuk. Ada perbedaan lama paparan yaitu antara lama paparan 30’, 60’, 120’ dan 3600’ dan tidak ada perbedaan kemampuan merk insektisida dalam membunuh nyamuk Anopheles Spp. Sehingga kemampuan tertinggi daya bunuh nyamuk pada paparan 60 menit.   

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