scholarly journals The Suppressive Effects of Selected Plants Species for the Management of P. hysterophorus

Author(s):  
Neema Mtenga ◽  
Thadeo Mokiti ◽  
Patrick Ndakidemi ◽  
Ernest Mbega

Aims: The present study investigated the suppressive effects of Sorghum bicolor, Sorghum arundinaceum, Amaranthus spinous, Tagetes erictus and Cassia tora on the management of Parthenium hysterophorus. Study Design: A randomized block design was used to assess the suppressive effects of Sorghum bicolor, Tagetes erictus, Amaranthas spinous, Sorghum arundinaceum and C. tora in laboratory and pot experiments. The treatments were replicated four times. Place and Duration of Study: Experiments were conducted at the Tropical Pesticides Research Institute (TPRI) and Nelson Mandela Institution of Science and Technology (NM-AIST) for three months from March to June, 2018. Methodology: Plant to plant and seed to seed interactions were used to study the growth parameters behavior of tested plants both in pots and in laboratory settings. The germination of each plants in both laboratory and screen house was recorded soon after germination for 14 days at the interval of two days. Additionally, for pot studies, plant height, root length and biomass yield were assessed after a period of 3 months during the termination of the study. Results: Results showed that Sorghum bicolor, Tagetes erictus, Amaranthus spinous and Sorghum arundinaceum demonstrated strong suppression on germination inhibition and plant height and root length as well as reduced biomass of P. hysterophorus. However, Cassia tora exhibited weak suppression effects in both laboratory and pot experiments. Conclusion: Findings from this study suggest that Sorghum bicolor, Tagetes erictus, Amaranthus spinous, Sorghum arundinaceum were effective in affecting P. hysterophorus. Our finding provides bases towards developing an effective alternative to manage P. hysterophorous.

Author(s):  
James Flomo Gaydaybu ◽  
Moses Mulbah Waiwaiku ◽  
Philip G. S. Ndaloma ◽  
Francis Gbelee ◽  
Lamin K. M. Fatty

This research shows the effect of charcoal and NPK fertilizer on the growth of two pepper (Capsicum annum L) Varieties. The treatment levels were: control (no treatment), charcoal (2 tons ha-1), NPK 15:15:15(150 kg ha-1) and charcoal and NPK combination. The experimental plots were 32 in total with 1.5 squares meter each and treatments were replicated 2 times in each block with 4 blocks in total. The Factorial Design was conducted and fitted with Complete Randomized Block Design Method to assigned plots with treatments and pepper varieties. The growth parameters considered were: plant height, number of leaves, number of branches, leaves length, leaves width and plant diameter. The data analyzed indicated that Local pepper performed better than Jalapeno pepper for all treatments. For plant height charcoal plots performed better than control with these means 28 cm, 64 cm and 72 cm for date 1, 2, and 3 respectively (Date 1, 2 and 3 as 30, 60 and 90 days after transplanting respectively). The Local pepper performed better than Jalapeno in growth with these plant height means 31 cm, 86 cm, and 96 cm for date 1, 2, and 3 respectively. Bigger stem diameters were recorded for the Local pepper and even wider leaf. The Local pepper performed better than the Jalapeno pepper at all levels of growth. The combination of charcoal and NPK had the best growth results over all the treatments.


2012 ◽  
Vol 45 (4) ◽  
pp. 57-64 ◽  
Author(s):  
M. Afzal ◽  
A. Ahmad ◽  
Au.H. Ahmad

Abstract A field experiment was conducted on sorghum (Sorghum bicolor (L.) Moench cv.) under three cutting system to determine the effect of nitrogen on growth and yield at University of Agriculture Faisalabad, Pakistan, during the season 2010-2011. The experiment was laid out in Randomized Complete Block Design (RCBD), using three replications. There were four levels of nitrogen 0, 50, 75 and 100 kg N/acre in the form of urea. The growth parameters like plant height, number of leaves, leaf area is determined periodically. First reading taken after 20 days of sowing while second and third was taken after 15 days of first cutting. Yield parameter like plant population, fresh and dry weight was determined in three cuttings. Results showed that increasing nitrogen dose increased all growth attributes. Results revealed for first, second and third cuttings showed significant differences at all growth attributes. Thus, the maximum plant height was observed in N4 (100 kg N/acre), having plant height 193.92, 195.24 and 192.79 cm in first, second and third cutting, respectively, which was followed by the treatment N3 (75 kg N/acre), having 179.70 cm in first cutting, while second and third cutting have same plant height 168.62 cm. The exception was the plant population showed non significant behavior in second and third cutting while number of leaves per plant in second cutting only and protein % in third cutting showed non significant difference with nitrogen application.


Author(s):  
Resmayeti Purba

<p>Penelitian yang bertujuan untuk mengetahui respon dari pertumbuhan dan produksi kedelai terhadap pemupukan hayati (Agrimeth dan Gliocompost) pada lahan kering dilakukan di Kabupaten Pandeglang Banten, April –Juni 2016. Penelitian menggunakan rancangan acak kelompok, dengan enam perlakuan: (A). Tanpa pemupukan (kontrol); (B). Pupuk rekomendasi: 100 kg/ha urea + 100 kg/ha SP-36 + 250kg/ha NPK Phonska; (C) Pupuk Hayati Agrimeth 200 g/ha + 25% pupuk rekomendasi; (D). Pupuk Hayati Agrimeth 200 g/ha + 50% pupuk rekomendasi; (E) Pupuk Hayati Gliocompost 20 kg/ha+ 25% pupuk rekomendasi; dan, (F) Gliocompost 20 kg/ha + 50% pupuk rekomendasi. Parameter yang diamati meliputi: tinggi tanaman (cm), panjang akar (cm) dan jumlah bintil akar pertanaman pada 42 hst, jumlah polong isi pertanaman dan hasil biji kedelai kering (t/ha) saat panen. Analisis data 254 Jurnal Pengkajian dan Pengembangan Teknologi Pertanian, Vol. 19, No.3, November 2016: 253-261 menggunakan ANOVA dengan uji lanjutan menggunakan DMRT dengan aplha 5%. Hasil penelitian menunjukkan bahwa perlakuan pemberian Agrimeth 200 g/ha + 50% pupuk rekomendasi berbeda sangat nyata dibandingkan lima perlakuan lainnya terhadap tinggi tanaman, panjang akar, bintil akar, polong isi dan hasil biji kedelai. Perlakuan ini memberikan hasil tertinggi untuk semua parameter yang dianalisis. Respon pertumbuhan dan hasil kedelai terhadap pemberian masing-masing pupuk hayati Agrimeth dan Gliocompost pada budidaya kedelai di lahan kering lebih tinggi dibandingkan perlakuan yang hanya menggunakan pupuk anorganik rekomendasi. Penggunaan Agrimeth 200 g/ha mampu mensubtitusi 50% pupuk anorganik rekomendasi. Pada penggunaan 25% pupuk rekomendasi, penambahan pupuk hayati Agrimeth 200 g/ha mampu mensubtitusi penambahan Gliocompost 20 kg/ha.</p><p><strong>ABSTRACT</strong><br /><br />The Growth and Production of Soybean towards Organic Fertilization on Dryland in Pandeglang, Banten. The study aimed to investigate the response of the growth and production of soybean towards biofertilizer (Agrimeth and Gliocompost) on dry land, in Pandeglang Banten from April to June 2016. The study was a randomized block design, with six treatments: (A). Without fertilization (control); (B). Recommended Fertilizer consist of 100 kg/ha of urea + 100 kg/ha of SP-36 + 250 kg/ha of NPK Phonska; (C) Agrimeth Biofertilizer 200 g/ha + 25% recommended fertilizer; (D). Agrimeth Biofertilizer 200 g/ha + 50% recommended fertilizer; (E) Gliocompost Biofertilizer 20 kg/ha + 25% recommended fertilizer; and (F) Gliocompost Biofertilizer 20 kg/ha + 50% recommended fertilizer. The observed parameters were plant height (cm) after harvest, root length (cm) and the number of root nodules crop at 42nd days, number of filled pods and seed yield of dried soybean crops (t/ha) at harvest. Data were analyzed using ANOVA with advanced test using DMRT with aplha 5%. The results showed that the application of 200 g/ha of Agrimeth + 50% of recommended fertilizer resulted significant differences comparing to the other treatments on plant height, root length, root nodules, filled pods and seed yield of soybean. This treatment contributed the highest result of all parameters. The response of growth and yield of soybean using Agrimeth and Gliocompost as biofertilizer separately in dry land were higher than those applying the recommended anorganic fertilizer. The use of 200 g/ha of Agrimeth could subtitute 50% of recommended anorganic fertilizer. In the application of 25% of recommended anorganic fertilizer, intake of 200 g/ha of Agrimeth were able to subtitute 20 kg/ha of Gliocompost.</p>


2019 ◽  
Vol 4 (1) ◽  
pp. 160-168
Author(s):  
Syarifah Silma Agusti ◽  
Rika Husna ◽  
Erida Nurahmi

Abstrak. Penelitian ini bertujuan untuk mengetahui pengaruh dosis kompos dan pemangkasan terhadap pertumbuhan dan hasil tanaman okra. Penelitian ini dilaksanakan di Kebun Percobaan dan Laboratorium Hortikultura Fakultas Pertanian Universitas Syiah Kuala Darussalam Banda Aceh, dari bulan Mei sampai Agustus 2018. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) pola faktorial 4x2 dengan 3 ulangan dan dilanjutkan dengan uji Beda Nyata Jujur taraf  5% pada hasil uji F yang signifikan. Faktor pertama adalah dosis kompos dengan 4 taraf yaitu: 0, 75, 150, dan 225 g.polibag-1. Faktor kedua adalah pemangkasan dengan 2 taraf yaitu: pemangkasan dan tanpa pemangkasan. Parameter yang diamati adalah tinggi tanaman, diameter pangkal batang, jumlah buah per tanaman, panjang buah, total berat buah per tanaman, berat berangkasan basah, dan Indeks panen. Hasil penelitian menunjukkan bahwa, perlakuan dosis kompos berpengaruh sangat nyata terhadap tinggi tanaman umur 45 HST dan berpengaruh nyata pada umur 60 HST. Pertumbuhan tanaman okra terbaik terdapat pada dosis kompos 225 g.polibag-1. Pemangkasan berpengaruh nyata terhadap tinggi tanaman umur 60 HST, parameter pertumbuhan dan hasil terbaik terdapat pada perlakuan pemangkasan. Kombinasi perlakuan terbaik antara dosis kompos dan pemangkasan terhadap pertumbuhan dan hasil tanaman okra terdapat pada dosis kompos 225 g. polibag-1 dengan pemangkasan.The Effect of Compost Dosage and Pruning on Growth and Yield of Okra Plants (Abelmoschus esculentus L. Moench)Abstract. This study aims to determine the effect of compost dosage and pruning on the growth and yield of okra plants. This research was conducted at the Experimental Garden and Horticulture Laboratory of the Faculty of Agriculture, Syiah Kuala University, Darussalam Banda Aceh, from May to August 2018. This study used a Randomized Block Design (RBD) factorial pattern 4x2 with 3 repetation and continued with a 5% Honest Real Difference test on a significant F test result. The first factor was compost dosage with 4 levels, namely: 0, 75, 150, and 225 g.polibag-1. The second factor is pruning with 2 levels, namely: pruning and non- pruning. The parameters observed were plant height, stem base diameter, number of fruits per plant, fruit length, and total fruit weight per plant, wet strength weight, and harvest index. The results showed that the treatment of compost dosage had a very significant effect on plant height of 45 HST and had a significant effect on the age of 60 HST. The best growth of okra plants is in compost dosage 225 g. Polyibag-1. Pruning has a significant effect on plant height at 60 HST, growth parameters and the best result is in pruning treatment. The best combination of treatment between compost dosage and pruning on the growth and yield of the okra plant is in compost dosage 225 g. polybag-1 with pruning.


2019 ◽  
Vol 4 (1) ◽  
pp. 8-15
Author(s):  
Rahman Hairuddin ◽  
S. Sachril

This study was aimed to increase the production of Thai eggplant (Solanum melongena L) grown at altitude of 2 masl using myccohirzal biofertilizer. The study was conducted in Experimental Farm of Agricultural Faculty of Campus II University of Cokroaminoto Palopo, Batu Pasi Sub-district, Wara Utara District, Palopo City. This research applied the method of Randomized Block Design with four replicants and five treatments; P0 = Without treatment (control), P1 = Mycorrhizal fertilizer of 5 gr/plant, P2 = Mycorrhizal fertilizer of 10 gr/plant, P3 = Mycorrhizal fertilizer of 15 gr/plant, and P4 = Mycorrhizal fertilizer of 20 gr/plant. Research of this study showed that one treatment significantly affected the root length of eggplant, namely P2 with root length of 39.42 cm. In general, application of mycorrhizal fertilizer did not significantly affect the growth and production of eggplant, but several doses resulted in better outcome. Treatment of P3 obtained the best plant height of 9.22 cm, while the best average flowering age was found in P2 and P4 of 31.8 days after planting. Moreover, P3 and P4 produced the most number of flower, namely 3.83 flowers, while the most number of fruits was obtained by P4 of 3.53 fruits. At last, P3 produced the heaviest fresh weight of fruit of 221.13 gram


2020 ◽  
Vol 7 (1) ◽  
pp. 006-008
Author(s):  
Lowrence Kithan ◽  
◽  
Malini B. Sharma ◽  
Akumla Longchar ◽  
◽  
...  

A field experiment was conducted during Kharif season of 2017 at All India Coordinated Research Project (AICRP) on pigeonpea experimental farm at School of Agricultural Sciences and Rural Development (SASRD), Nagaland University, Medziphema Campus. The objective of the study was to investigate the effect of different dates on performance of some improved pigeonpea varieties. The experiment comprised of three planting dates (1st June, 15th June and 1st July) as factor A and three pigeonpea varieties (UPAS 120, MANAK and PARAS) as factor B. The experiment was laid out in factorial randomized block design (FRBD) with three replications. Among growth parameters, maximum plant height (163.2 cm) and number of branches (15.8) were recorded with variety UPAS 120 at first date of sowing (1st June). Among yield parameters, maximum number of pods per plant (114.9) and maximum grain yield (982.2 Kg ha-1) were recorded at first date of sowing (1st June) and with variety UPAS 120 (113.8 and 968.8 Kg ha-1).


2021 ◽  
Vol 36 (2) ◽  
pp. 379
Author(s):  
Tri Mulya Hartati ◽  
Chumidach Roini ◽  
Indah Rodianawati

Cassava is one of the local food sources that are widely available in almost every region. Cuttings are used to plant cassava, and these cuttings will produce a number of roots and buds. The main purpose of this study was to evaluate the effect of cuttings slices model and the number of buds on the growth of Tobelo local varieties of cassava. This study employed a factorial Randomized Block Design (RBD), with the cuttings slices model as the first factor, consisting of three levels, namely: flat slice, one-sided slice and two-sided slice. The second factor is the number of buds, which is divided into three levels, 1 bud, 2 buds and 3 buds. The observation parameters in this study include plant height, number of leaves, stem diameter and leaf area. The results have revealed that the model of two-sided sliced cuttings combined with the number of one bud is the most effective treatment in improving the growth of cassava plants of Tobelo local varieties. The models of one-sided and two-sided oblique cuttings slices yield the highest average value for the parameters of plant height, stem diameter and leaf area, while the treatment with one bud tends to give the best results for the growth parameters.


2020 ◽  
Vol 15 (3) ◽  
pp. 249-251
Author(s):  
K. Anny Mrudhula ◽  
B. Krishna Veni

A field experiment was conducted at Rice Research Unit, Bapatla during Kharif, 2013 to observe the performance of hybrids under Krishna Western Delta. The experiment was laid out in Randomized Block Design with four replications. The treatments are 5 rice hybrids like DRRH2, DRRH3, KRH2, PA6201 and CRHR32. The results of study revealed that the hybrids exhibited superiority in respect of different growth parameters like plant height, number of tillers per hill, panicle length grain yield and straw yield. Among various tested rice hybrids, maximum grain yield (6408 kg/ha) and straw yield (7178 kg/ha) were recorded in PA6201 which might be due to better growth parameters and yield components of hybrids.


Author(s):  
Wiwik Yunidawati ◽  
Riyanti Riyanti ◽  
Mazlina Mazlina

This study aims to determine the effect of bio fertilizers and foliar fertilizers on growth and yield of celery (Apium graviolens). This research was conducted at the Experimental Garden of the Faculty of Agriculture, Amir Hamzah University, Medan, Medan Estate Village, Percut Sei Tuan District with a height of ± 25 meters above sea level, which was conducted from May to July 2020. This study used a factorial Randomized Block Design with two factors studied, namely the first factor was the concentration of bio fertilizer Impro Tanotec (H), which consisted of 4 levels, namely H0 (0 ml/l water), H1 (1,5 ml/l water), H2 (2,5 ml/l water), H3 (3,5 ml/l water), and the second factor is the concentration of foliar fertilizer Growmore (D) which consists of 4 levels, namely D0 (0 gr/lwater), D1 (1 gr/l water), D2 (2 gr/l water), and D3 (3 gr/l water). Parameters observed included plant height (cm), number of leaves, number of stalks, root length (cm), and fresh weight per plant. (gr). The results showed that the concentration of bio fertilizer had a very significant effect on plant height at the age of 20, 40, and 60 days after planting, the number of leaves at the age of 20, 40, and 60 days after planting, the number of stalks at the age of 40 and 60 days after planting, root length, and fresh weight per plant, but did not significantly affect the number of stalks at the age of 20 days after planting. The best bio-fertilizer concentration was obtained in the H3 treatment (3.5 ml/l water). The concentration of foliar fertilizer had a very significant effect on plant height at the age of 20, 40, and 60 days after planting, the number of leaves at the age of 20, 40, and 60 days after planting, the number of stalks at the age of 40 and 60 days after planting, and the fresh weight per plant, had a significant effect on root length, and had no significant effect on the number of stalks at the age of 20 days after planting. The best foliar fertilizer concentration was obtained in D3 treatment (3 gr/l water). The interaction between the concentration of bio fertilizer and foliar fertilizers had a significant effect on the number of leaves at the age of 40 and 60 days after planting, where the best treatment combination was obtained in the H3D3 treatment (bio fertilizer concentration 3.5 ml/l water and foliar fertilizer concentration 3 gr/l water).


2019 ◽  
Vol 7 (2) ◽  
pp. 138
Author(s):  
Natalia Lusianingsih Sumanto ◽  
Ardian Eleonard Purba

This study aims to determine the effect of the concentration of coconut water and onion extract on the growth of stevia plant cuttings. The research was conducted in Juli until November 2019 in trial garden of the Politeknik Wilmar Bisnis Indonesia. This research uses factorial randomized block design. The first factors are concentration of coconut water consisting of five levels is AK0 = control, AK1 = coconut water 25%, AK2 = coconut water 50%, AK3 = coconut water 75% and AK4 = coconut water 100%. The second factor was the treatment of onion extract consisting of five treatments namely BM0 = control, BM1 = concentration of onion extract 25%, BM2 = concentration of onion extract 50%, BM3 = concentration of onion extract 75% and BM4 = concentration of onion extract 100%. Observation of the percentage of live cuttings, stem height, number of leaves and root length was done at 2 MST, 3 MST and 4 MST. The highest percentage of cuttings found in plants treated with 100% coconut water and onion extract, the highest plant height was found in the treatment of 100% concentration of coconut water and onion extract (3 MST and 4 MST), the highest number of leaves found in the treatment 100% concentration of coconut water and shallot extract (3 MST) and the highest root length was found in the treatment of 100% concentration of coconut water and shallot extract (2 MST, 3 MST and 4 MST).


Sign in / Sign up

Export Citation Format

Share Document