scholarly journals Harvest growth stages in soybean cultivars intended for silage

2016 ◽  
Vol 38 (4) ◽  
pp. 383
Author(s):  
Raquel Dias Oliveira ◽  
Carla Michelle Silva ◽  
Fábio Mielezrski ◽  
José Sidnei Bezerra Lima ◽  
Ricardo Loiola Edvan
Keyword(s):  
Significant Interaction ◽  
Block Design ◽  
Dry Weight ◽  
Growth Stages ◽  
Phenological Stage ◽  
Maturity Group ◽  
Phenological Stages ◽  
Soybean Cultivars ◽  
Randomized Block Design ◽  
Maturity Groups

 This study aimed to characterize the harvest phenological stages of soybean cultivars intended for silage. Cultivars were evaluated for dry weight of the composite sample, branches, leaves and pods; wet mass of branches, leaves, pods and ground natural matter. This experiment was a 3 x 2 factorial randomized block design, with four replications each, where the first factor corresponds to the harvest stage: R4, R5 and R6; and the second factor refers to two soybean maturity groups (8.0 and 8.1). A significant interaction was detected only for ground natural matter. Higher values of most traits evaluated were observed for the R6 harvest phenological stage. The cultivar with maturity group 8.0 showed higher values for ground natural matter. 

scholarly journals Defoliation percentage in two soybean cultivars at different growth stages

2015 ◽  
Vol 19 (6) ◽  
pp. 567-573 ◽  
Author(s):  
Cláudio A. da S. Glier ◽  
José B. Duarte Júnior ◽  
Gabriel M. Fachin ◽  
Antonio C. T. da Costa ◽  
Vandeir F. Guimarães ◽  
...  
Keyword(s):  
Grain Yield ◽  
Block Design ◽  
Growth Stages ◽  
Production Potential ◽  
Soybean Cultivars ◽  
Randomized Block Design ◽  
Different Levels ◽  
Different Growth Stages ◽  
Phenological Phases

ABSTRACT The objective of this study was to evaluate the agronomic variables due to the effects of different levels of defoliation in the phenological phases of two soybean cultivars. The experiment was conducted during the 2011/2012 season, in a randomized block design with three replicates, in a 2 x 4 x 5 factorial scheme. Two cultivars were exposed to defoliations of 0, 25, 50, 75 and 100% at the stages of V4, V9, R3 and R5. The cultivar 'NK 7059RR' showed less sensitivity to defoliation than the cultivar 'IN 4990RG'. 25% defoliation levels reduced the yield of the cultivar 'IN 4990RG', while levels of 75 and 100% reduce the number of grains per pod in both cultivars. The defoliation performed in the V4 stage lead to lower grain yield than defoliation in V9. The most sensitive stages to defoliation are R3 and R5, where there is a greater reduction in the production potential of soybeans.

scholarly journals Effect of manure and NPK fertilizers on growth and production of onion (Allium cepa L.)

2019 ◽  
Vol 2 (1) ◽  
pp. 16 ◽  
Author(s):  
Maisura Maisura ◽  
Mulyadi Nurdin ◽  
Muslina Muslina
Keyword(s):  
Significant Interaction ◽  
Block Design ◽  
Dry Weight ◽  
Npk Fertilizers ◽  
Onion Bulbs ◽  
Randomized Block Design ◽  
Allium Cepa L ◽  
Wet Weight ◽  
Bulb Yield

Fertilization is one of efforts done by farmers to increase the production and quality of onions.  This research aimed to find out the effect of manure and NPK fertilizers to the growth and production of onions. This research was conducted in Paloh Lada Village, Dewantara Sub-district, North Aceh and Agroecotechnology Laboratory, Faculty of Agriculture, Malikussaleh University from May to July 2018. This research used Randomized Block Design (RBD) Factorial. The first factor was manure (P): 15 tons/ha (P1), 20 tons/ha (P2), 25 tons/ha (P3). The second factor was NPK fertilizers (N): 150 kg/ha (N1), 200 kg/ha (N2) and 250 kg/ha (N3). The results indicated that there was high significant interaction between manure and NPK fertilizers on wet weight and dry weight of onion bulbs and also bulb yield. The application of manure significantly enhanced the wet weight and dry weight of onion bulbs and its production and it also significantly increased the plant height at 14 days after planting. The application of NPK increased the wet weight and production of onion bulbs significantly. Also, the combination application of manure 15 tons/ha and NPK fertilizers 150 kg/ha did improve the wet weight, dry weight and production of onion bulbs.

scholarly journals Fungicides application in corn disease control and mycotoxin accumulation in grain

2020 ◽  
Vol 8 (8) ◽  
pp. 519-529
Author(s):  
Gilmar Seidel ◽  
Caroline Wesp ◽  
Jana Koefender ◽  
Diego Pascoal Golle ◽  
André Schoffel ◽  
...  
Keyword(s):  
Disease Control ◽  
Block Design ◽  
Rio Grande ◽  
White Spot ◽  
Growth Stages ◽  
Phenological Stage ◽  
Rio Grande Do Sul ◽  
Randomized Block Design ◽  
Different Growth Stages ◽  
Summer Crop

In Brazil, corn planted area increased by 30%. Therefore, there was also an increase in the incidence of pathogens in the crop. The objective of this work was to evaluate the influence of fungicide applications on corn crops in the different growth stages for the control of the diseases and its effect on the occurrence of mycotoxins in the grain. The experiment was carried out in the 2017/2018 summer crop, in the municipality of Cruz Alta, state of Rio Grande do Sul/BR. This study used P 1630 hybrid, in a randomized block design with eight treatments (control, V8, PT, V4 + V8, V4 + V8 + PT, V8 + PT, V8 + PT + 15, PT + 15) and three replicates. The fungicide fluxapiroxade + pyraclostrobin + epoxiconazole at the dose of 1.0 L/ha-1 was used. The diseases that affected the crop were the white spot and helmintosporiosis, therefore, reducing the incidence of diseases. Also the highest yields were obtained where the applications started at the phenological stage V4 and V8. The levels of mycotoxins detected in this work remained within the limits of the legislation, with a significant reduction in the accumulation of fumonisin and aflatoxin with fungicide applications.

scholarly journals Agronomic performances of Pak Choi grown with different soil cover

2015 ◽  
Vol 33 (2) ◽  
pp. 261-266 ◽  
Author(s):  
Márcia M Echer ◽  
Graciela M Dalastra ◽  
Tiago L Hachmann ◽  
Elcio S Klosowski ◽  
Vandeir F Guimarães
Keyword(s):  
Soil Cover ◽  
Block Design ◽  
Dry Weight ◽  
Bare Soil ◽  
Production Traits ◽  
Pak Choi ◽  
Randomized Block Design ◽  
Black Plastic ◽  
Growing Conditions ◽  
Set Up

An important aspect in the cultivation of vegetables is the quality of the product to be marketed, free from dirt and damage and the practice of mulching could be an option, but there is scarse information. The aim of this study was to evaluate the influence of mulching on the production traits of three cultivars of Pak Choi. The experiment was set up during March to May 2013 using a split plot randomized block design, with four replications. Soil cover treatments (white agrotextile, black agrotextile, black plastic, silver plastic, tifton straw and bare soil) were arranged in the plots, and three cultivars of Pak Choi (Green Pak Choi, White Pak Choi and Chingensai Natsu Shomi) in subplots. Height and diameter of shoots, number of leaves, fresh weight of the head and petiole, base diameter, dry weight of stem, petiole, and leaf were evaluated thirty-five days after transplantation. The total dry weight and leaf area were measured, and then we estimated the yield. There was a significant effect of soil cover and cultivar. In general, the cover with synthetic materials showed higher values on production of Pak Choi. The cultivar White Pak Choi was better adapted to the growing conditions, with an average yield of 57.78 t/ha.

scholarly journals PENGARUH JARAK TANAM DAN DOSIS PUPUK NPK MAJEMUK TERHADAP PERTUMBUHAN, PRODUKSI BUNGA, DAN ANALISIS USAHA TANI ROSELA MERAH

2020 ◽  
Vol 18 (1) ◽  
pp. 17
Author(s):  
BUDI SANTOSO ◽  
UNTUNG SETYO-BUDI ◽  
ELDA NURNASARI
Keyword(s):  
Production Cost ◽  
Block Design ◽  
Market Price ◽  
Dry Weight ◽  
Hibiscus Sabdariffa ◽  
Plant Spacing ◽  
Fresh Weight ◽  
Compound Fertilizer ◽  
Randomized Block Design ◽  
Growth Production

<p>ABSTRAK<br />Penelitian mengenai jarak tanam dan pemupukan untuk tanaman<br />rosela merah (Hibiscus sabdariffa var. sabdariffa) belum banyak dilakukan.<br />Suatu penelitian, yang dilakukan di Desa Kanyoran, Kecamatan Semen,<br />Kabupaten Kediri pada tahun 2010, bertujuan untuk mendapatkan jarak<br />tanam dan dosis pupuk NPK majemuk yang tepat bagi pertumbuhan serta<br />produksi kelopak bunga rosela merah dan analisis usaha tani. Perlakuan<br />disusun dalam rancangan acak kelompok faktorial dengan 3 ulangan.<br />Sebagai faktor pertama adalah 3 ukuran jarak tanam yang terdiri atas 1) 80<br />x 50 cm; 2) 100 x 50 cm; dan 3) 120 x 50 cm; dan sebagai faktor kedua<br />adalah 5 dosis pupuk NPK majemuk yang terdiri atas a) 30 kg NPK/ha; b)<br />37,50 kg NPK/ha; c) 45 kg NPK/ha; d) 52,50 kg NPK/ha; dan e) 60 kg<br />NPK/ha. Hasil penelitian menunjukkan bahwa terjadi interaksi antara jarak<br />tanam (100 x 50 cm) dengan dosis pupuk (45 kg NPK/ha) yang<br />memberikan pertumbuhan tinggi tanaman, jumlah cabang produktif,<br />jumlah buah, bobot kelopak bunga berbiji, bobot biji, bobot basah kelopak<br />bunga tanpa biji, dan bobot kelopak bunga kering maksimal, masing-<br />masing sebesar 186,63 cm; 16,33 cabang; 117,00 buah; 41,33 kg/petak;<br />16,17 kg/petak; 26,67 kg/petak; dan 2,35 kg/petak (652,75 kg/ha). Usaha<br />tani rosela merah memberikan keuntungan sebesar Rp 10.420.000/ha<br />dengan B/C = 1,49. Harga pokok kelopak bunga kering sebesar<br />Rp13.031/kg lebih kecil dibanding harga pasar (Rp 40.000/kg), dan dapat<br />dijamin tidak akan terjadi kerugian bagi petani<br />Kata kunci : Hibiscus sabdariffa var. sabdariffa, jarak tanam, pupuk NPK<br />majemuk, pertumbuhan, produksi</p><p>ABSTRACT<br />There has been no research program on plant spacing and fertilization on<br />red roselle plant (Hibiscus sabdariffa var. sabdariffa) up to 2010. A study<br />conducted in Desa Kanyoran, Kecamatan Semen, Kediri in 2010, aimed at<br />getting appropriate plant spacing and NPK compound fertilizer dosage for<br />growth and calyx production of red roselle, as well as its farm analysis.<br />The experiment was arranged in a factorial randomized block design with<br />three replicates. As the first factor were 3 dimensions of plant spacing<br />consisting of 1) 80 x 50, 2) 100 x 50, and 3) 120 x 50 cm, and the second<br />factor were 5 doses of NPK compound fertilizer consisting of a) 30, b)<br />37.50, c) 45, d) 52.50, and e) 60 kg NPK/ha. The results showed that there<br />was an interaction between plant spacing (100 x 50 cm) with fertilizer<br />dosage (45 kg NPK/ha), which resulted in plant height, number of<br />productive branches, number of fruits, weight calyx with seed, seed<br />weight, fresh weight of seedless calyx, and maximum dry weight of calyx,<br />each amounting to 186.63 cm; 16.33 branches; 117.00 fruits; 41.33<br />kg/plot; 16.17 kg/plot; 26.67 kg/plot; and 2.35 kg/plot (652.75 kg/ha),<br />respectively. Red roselle farm provided a gain of Rp10,420,000/ha with a<br />B/C of 1.49. Production cost of dried calyx was Rp13,031/kg, lower than<br />market price (Rp 40,000/kg), and was guaranteed to be no loss to farmers.<br />Key words: Hibiscus sabdariffa var. sabdariffa, plant spacing, NPK<br />compound fertilizer, growth, production</p>

scholarly journals Pertumbuhan dan Produksi Dioscorea sansibarensis Pax pada Perlakuan Panjang lanjaran dan Waktu Batang Membelit*

2018 ◽  
Vol 45 (3) ◽  
pp. 249
Author(s):  
Solikin ,
Keyword(s):  
Block Design ◽  
Soil Surface ◽  
Dry Weight ◽  
Growth And Yield ◽  
Botanic Garden ◽  
Randomized Block Design ◽  
Two Factors ◽  
Main Plot ◽  
Total Plant ◽  
Total Dry Weight

Dioscorea is potentially used as staple food to support food security. The research was aimed to determine the effect of stake length and time of  stem twining  on  the growth of Dioscorea sansibarensis Pax. The experiment was conducted  in  Purwodadi Botanic Garden from December 2014 until May 2015 using split plot randomized block design consisted of two factors, i.e. the stake length and time of stem twining. The stake length was the main plot consisted of 150 cm, 100 cm and 50 cm above soil surface and without stake (control). The time of stem twining as subplots, i.e. stem twined early, twined at the time of 4 leaves stage, and twined at 8 leaves stage. Each combination of the treatments was replicated three times. The results showed that there was significant effect on the stake length  and the time of stem twining treatments on the plant growth and yield. The stake  length of 150 cm treatment produced the highest fresh tuber and total plant dry weight, i.e., 257.24 g and 132.77 g per plant, respectively. On the contrary, the plant without stake produced the lowest fresh tuber and  total dry weight of plant, i.e., 112.10 g and 48.65 g per plant, respectively.<br /><br />Keywords: biomass,leaf area, photosyntesis, tuber weight

scholarly journals Cekaman Garam NaCl danTeknik Aplikasi Azolla pada Tanaman Padi

2020 ◽  
Vol 25 (3) ◽  
pp. 349-355
Author(s):  
Fitri Krismiratsih ◽  
Sugeng Winarso ◽  
Slamerto Slamerto
Keyword(s):  
Salt Stress ◽  
Block Design ◽  
Ground Cover ◽  
Dry Weight ◽  
Soil Conditions ◽  
Application Technique ◽  
Rice Plants ◽  
Root Dry Weight ◽  
Randomized Block Design ◽  
Salinity Levels

Efforts to increase production potential can be carried out by extensification in a less productive saline land. Salinity is a major problem in the growth of most plants. Azolla is a plant that is sensitive to salinity, but if it is applied well, it can grow optimally at high salinity levels. The purpose of this study is to obtain an azolla application technique that is effective in increasing the adaptation of rice plants to NaCl saline soil conditions. The experimental design used was Randomized Block Design (RBD) with 2 factors and 3 replications. The first factor was the azolla application technique consisted of 3 levels: fresh azolla composted, fresh azolla immersed, and fresh azolla as a ground cover. The second factor was the levels of NaCl salt stress consisted of 4 levels: control DHL 0, 2, 4, and 8 dS m-1. The adaptation ability of rice plants based on variable plants height growth rate, number of tillers, strove dry weight, root dry weight, stomata density, leaf chlorophyll (SPAD), age of flowering, number of paddy grain, and harvest index. The results showed how to test content up to 2 dS m-1 which increased rice growth especially the application of azolla composted. Increasing stress to 4 and 8 dS m-1showed bad effects on vegetative, physiology, and yields of rice components. The stronger of salt stress the higher all plants growth variables except the age of flowering that actually showed the acceleration of flowering. Application of composted azolla can increase the root dry weight and azolla as a ground cover can increase the numbers of paddy grains.   Keywords: azolla, NaCl, rice, stress

scholarly journals COBERTURA NITROGENADA EM DIFERENTES ESTÁDIOS FENOLÓGICOS DO FEIJOEIRO COMUM ALTERA PRODUTIVIDADE E QUALIDADE DE GRÃOS

Nativa ◽  
2019 ◽  
Vol 7 (6) ◽  
pp. 636
Author(s):  
Gabriel Pereira Nogueira ◽  
Mateus Sebastião Gonçalves Da Silva ◽  
Fábio Tiraboschi Leal ◽  
Rogério Farinelli ◽  
Fábio Luiz Checchio Mingotte ◽  
...  
Keyword(s):  
Phaseolus Vulgaris ◽  
Grain Yield ◽  
Common Bean ◽  
Block Design ◽  
Phenological Stages ◽  
Agronomic Efficiency ◽  
Randomized Block Design ◽  
Soil Preparation ◽  
Grain Yield And Quality ◽  
Qualitative Performance

A necessidade de conhecer a marcha de absorção do nitrogênio (N) pelo feijoeiro é importante para compreender os desempenhos produtivo e qualitativo dessa cultura.  O objetivo deste estudo foi avaliar a influência da cobertura nitrogenada em função de diferentes estádios fenológicos no desempenho morfoagronômico e produtivo e nas características tecnológicas dos grãos do feijoeiro em sistema de plantio convencional. Utilizou-se o delineamento de blocos casualizados, com quatro repetições. Os tratamentos foram constituídos por doze combinações de fornecimento de N (FN) em cobertura (dose total = 90 kg ha-1 de N) aplicadas nos estádios fenológicos V3, V4 e R5 (V3+V4+R5) do feijoeiro de inverno irrigado: 00+00+00; 30+30+30; 30+60+00; 30+00+60; 60+30+00; 00+60+30; 45+45+00; 00+45+45; 45+00+45; 90+00+00; 00+90+00; e 00+00+90. A fonte de N utilizada foi ureia convencional. Os FN 30+00+60, 00+45+45 e 45+00+45 incrementam a produtividade de grãos e a eficiência agronômica em relação à ausência de N e à aplicação de dose única no estádio fenológico V4. do feijoeiro comum. As maiores produtividades de proteína bruta e o menor tempo para cozimento foram proporcionadas pelos FN 00+45+45, 45+00+45, 90+00+00, 00+90+00 e 00+00+90.Palavras-chave: Phaseolus vulgaris; parcelamento do N; eficiência agronômica; tecnologia dos grãos. NITROGEN TOPDRESSING AT DIFFERENT PHENOLOGICAL STAGES ON COMMON BEAN CHANGES GRAIN YIELD AND QUALITY ABSTRACT: The need to know the nitrogen uptake (N) by common bean is important to understand the productive and qualitative performance of this crop. The objective of this study was to evaluate the influence of nitrogen topdressing as a function of different phenological stages on the morphometric and productive performance, and on the technological characteristics of the bean grains grown under conventional soil preparation. A randomized block design with four replications was used. The treatments were constituted by twelve topdressing N supply combinations (NS) (total dose = 90 kg ha-1 N) applied in the phenological stages V3, V4 and R5 (V3+V4+R5) of irrigated winter bean: 00+00+00; 30+30 +30; 30+60+00; 30+00+60; 60 + 30 + 00; 00+60+30; 45+45+00; 00+45+45; 45+00+45; 90+00+00; 00+90+00; and 00+00+90. The source of N used was conventional urea. NS 30 + 00 + 60, 00 + 45 + 45 and 45 + 00 + 45 increase grain yield and agronomic efficiency in relation to the absence of N and single dose application at V4 phenological stage of common bean. The highest crude protein yields and the shortest cooking time were provided by FN 00+45+45, 45+00+45, 90+00+00, 00+90+00 and 00+00+90.Keywords: Phaseolus vulgaris; N splitting; agronomic efficiency; grains technology. 

scholarly journals Determination of the Optimum Rate of N Fertilizers with Addition of Goat Manure for Production of Cowpea (Vigna unguiculata [L.] Walp)

2019 ◽  
Vol 6 (02) ◽  
pp. 121-128
Author(s):  
Devi Liana ◽  
Heni Purnamawati ◽  
Maya Melati ◽  
Yudiwanti Wahyu
Keyword(s):  
Vigna Unguiculata ◽  
Seed Weight ◽  
Block Design ◽  
Dry Weight ◽  
N Fertilizer ◽  
Plant Seed ◽  
Optimum Rate ◽  
Randomized Block Design ◽  
Goat Manure ◽  
100 Seed Weight

Cowpea (Vigna unguiculata L. Walp) is one of the potential substitutes of soybean due to its similar nutritional content. This study aims to determine the optimum rate of N fertilizer for the production of cowpea, and to determine the effects of the interaction between N fertilizer rates and goat manure application on cowpea production. The experiment was organized in a split-plot with a complete randomized block design with three replications. The main plot was goat manure, i.e. 0 and 5 tons.ha-1; the sub-plot was nitrogen fertilizer with five rates (0, 50, 100, 150, and 200% of the recommended rate), i.e. 0, 22.5, 45, 67.5, and 90 kg N.ha-1. Application of N fertilizer reduced the 100-seed weight and slightly reduced cowpea yield and yield components. Application of goat manure increased seed dry weight per plant, number of pods per plant, dry pod weight per plant, seed dry weight per m2, productivity, 100-seed weight, and the harvest index. There was no significant interaction between goat manure and different rates of nitrogen in affecting cowpea growth.

scholarly journals Effect of Different Levels of Phosphorus, Phosphorus Solubilising Bacteria and Farmyard Manure on Nutrient Content and Uptake by Bt-Cotton

2021 ◽  
pp. 17-27
Author(s):  
K. V. S. L. Raj Rushi ◽  
P. Prasuna Rani ◽  
P. R. K. Prasad ◽  
P. Anil Kumar
Keyword(s):  
Block Design ◽  
Farmyard Manure ◽  
Nutrient Content ◽  
Inorganic Phosphorus ◽  
Phosphorus Fertilization ◽  
Growth Stages ◽  
Bt Cotton ◽  
Constant Weight ◽  
Plant Samples ◽  
Randomized Block Design

Aim: To determine the effect of integrated use of inorganic phosphorus along with phosphorus solubilising bacteria and farmyard manure on nutrient Content and uptake in Bt-Cotton. Study Design: The experiment was laid out in randomized block design with three replications. Place of Study: At College Farm, Agricultural College, Bapatla, Guntur district. Methodology: After the preliminary layout, the Tulasi-BG II hybrid of cotton was used as a test crop, with a spacing of 90 cm x 60 cm in the experimental site. Plant samples were collected at 45, 90 DAS, and harvest. Plant samples were shade dried and kept in hot air oven at 75°C until a constant weight was obtained. Samples were powdered and then analysed using standard chemical procedures. Results: The uptake of macronutrients viz., N, P, and K was markedly influenced by the treatments with maximum values recorded by the treatment that received 60 kg P2O5 ha-1 + FYM + PSB. Their uptake significantly differed with increase in dose of phosphorus applied at all growth stages. Combined use of 60 kg P2O5 ha-1 + FYM + PSB resulted in a significant increase in uptake of all micronutrients (Zn, Cu, Mn, and Fe) at all stages except Cu at 90 DAS. Conclusion: Application of phosphorus combined with FYM and PSB not only reduce inorganic phosphorus fertilization but also enhance the uptake of nutrients and plant nutrient content by providing favourable conditions for plant growth. Application of 30 kg P2O5 ha-1+ PSB + FYM was found to be on a par with addition of only 60 kg ha-1P2O5. Hence the P dose can be reduced to half by integrating with PSB and FYM.

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