scholarly journals Mengembangkan skenario panen porang satu musim melalui manipulasi tanam lebih awal dan perlambatan waktu dorman fase generatif dengan pemberian asam salisilat organik alami di lahan kering Lombok Utara

Agromix ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 74-78
Author(s):  
Suparman ◽  
Suwardji ◽  
Kusnarta ◽  
Sukartno

The research on the scenario of one-season porang harvest through crop manipulation and delaying dormancy time aims to determine the effect of salicylic acid in breaking the dormancy of porang bulbil seeds during seeding and to determine the effect of slowing down the dormant period of the generative phase, so it is expected to be an alternative porang cultivation technology that is profitable for farmers The method used in this study used a completely randomized design experiment on breaking dormancy and a randomized block design in an experiment with slowing down the dormancy time of the generative phase with four salicylic acid concentrations (0%, 0.5%, 1%, and 2%) with eight replicates were planted under rainfed conditions. The results showed that the concentration of salicylic acid (C7H6O3) 2% was the best treatment in increasing tuber weight (52.25%) compared to the control. Application of Salicylic Acid (2%) was significantly able to increase the vegetative growth of porang plants, which was shown by increasing plant height by 50.38% and breaking seed dormancy 14 days faster than the control (without the addition of Salicylic Acid). Furthermore, the delay in dormancy time occurred 1 month later than the control so that it could prolong the vegetative phase. The concentration of 2% salicylic acid is the best treatment, which can be recommended in the development of one-season porang cultivation technology that can increase farmers' profits.

2007 ◽  
Vol 87 (4) ◽  
pp. 639-646 ◽  
Author(s):  
N. E. Odongo ◽  
D. McKnight ◽  
A. KoekKoek ◽  
J. W. Fisher ◽  
P. Sharpe ◽  
...  

The objective of this study was to assess the long-term effects of feeding a diet with no mineral phosphorus (P) supplementation on performance and P excretion in high-yielding dairy cows. In exp. 1, 24 primiparous (PP) and 40 multiparous (MP) Holstein cows were allocated to one of two treatments at calving: (1) regular corn silage and alfalfa haylage based milking cow total mixed ration (TMR; 0.42% P diet) or (2) milking cow total mixed ration (TMR) without supplemental mineral P (0.35% P diet) in a completely randomized design. The trial lasted until after two lactations were completed or the cow was culled. In exp. 2, eight MP Holstein cows (108 ± 8.0 d in milk) were used to determine P digestibility and retention in a completely randomized block design. In exp. 1, the 0.35% P diet cows had lower body weight, body condition score and milk urea nitrogen and higher faecal P than the 0.42% P cows. The dry matter intake (DMI) of PP cows on the 0.35% P diet was lower than that of PP cows on the 0.42% P diet. There was no difference in the DMI of MP cows. The P intake of 0.35% P diet PP cows was 30% lower than that of 0.42% P diet PP cows. The P intake of 0.35% P diet MP cows was 20% lower than that of 0.42% P diet MP. The digestibility coefficient of P for the 0.35% P diet was higher than that for the 0.42% P diet. These results suggest that the forages used in the present study contained adequate amounts of P to sustain milk production in high-yielding MP cows. However, for PP cows some mineral P supplementation is recommended especially during early lactation. Key words: Phosphorus, environmental pollution, intensive dairy operations


2013 ◽  
Vol 31 (1) ◽  
pp. 08-14 ◽  
Author(s):  
Edilson Costa ◽  
Taynara G de Souza ◽  
Gleciane de L Benteo ◽  
Katiane SS Benett ◽  
Cleiton GS Benett

The okra grows well in hot weather, finding favorable conditions for development in Brazil. We evaluated the production of okra seedlings and productivity. The experiment was conducted in the experimental area of the State University of Mato Grosso do Sul, in Aquidauana. In the seedling phase we tested substrates (100% triturated cassava stems, 75% triturated cassava stems and 25% vermiculite, 50% triturated cassava stems and 50% vermiculite, 25% triturated cassava stems and 75% vermiculite and 100% vermiculite). These substrates were placed in two protected environments (nursery with black screen, 50% of shading, and aluminized screen, 50% of shading). Each environment was considered an experiment conducted in completely randomized design with eight replications. After that we realized joint analysis. In the field, a total of 10 treatments generated from combinations of environments and substrates (2 environments x 5 substrates) were distributed in a randomized block design with four replications. The average proportions of cassava stems and vermiculite may be suitable for okra seedlings. The results of shoot and total dry phytomass indicate that the aluminized screen can be recommended for okra seedlings production when the substrate with a 1:1 ratio is used. Seedlings grown on higher percentages of vermiculite anticipate production, while seedlings produced only in cassava stems tend to slow it down. The aluminized screen tends to increase the yield of okra seedlings. Average proportions of vermiculite and cassava stems for seedling production under aluminized screen, provide more fruits and yield of okra in Aquidauana.


Author(s):  
Riani Dwi Utari ◽  
Mohammad Masykuri ◽  
Retno Rosariastuti

There are many of rice field which is located near the industrial area. The industrial waste contains heavy metals (chromium) which will cause contamination of rice if the waste isn’t treated properly. The used of chemical fertilizers can cause chromium contamination. It needs an effort to do remediation, such as using phytostabilization mechanism. This research aimed to determine the role of chelator in chromium phytostabilization and its influence on the growth and quality of rice. The study was conducted in Waru village, Karanganyar in May to October 2018.  This research was factorial design used completely randomized block design with two factors, namely chemical fertilizers and chelator (<em>Agrobacterium </em>sp. I<sub>26</sub>, and manure). The parameters observed are chromium content and uptake by plant tissues (roots, shoot and rice), plant height and a number of clumps. Research output was without chemical fertilizer-chelator <em>Agrobacterium </em>sp. I<sub>26</sub> that can increase the chromium uptake in roots as big as 95.38 %, increased up to 10 %  in the shoot and decreased up to 92.38 % in rice compared to control. Application of <em>Agrobacterium</em> sp. I<sub>26</sub> can be recommended to produce good quality and quantity of rice (good growth and free from harmful pollutants such as chromium metal).


2019 ◽  
Vol 49 (2) ◽  
Author(s):  
Lucas Matias Gomes ◽  
Cláudia Silva da Costa Ribeiro ◽  
Carlos Francisco Ragassi ◽  
Lorena Sousa Silva ◽  
Francisco José Becker Reifschneider

ABSTRACT: The objective of this study was to evaluate the plant and fruit characteristics in advanced lines of Jalapeño pepper for mechanical harvesting. Thus, two experiments were carried out in the field. Experiment I (2015) was conducted as a randomized block design (three replications and eight plants per plot) and Experiment II (2016) in a completely randomized design (five replications and ten plants per plot). In 2015, lines CNPH 30,112, CNPH 30,118, CNPH 30,147, CNPH 30,159, CNPH 30,183, and CNPH 30,245 were evaluated, together with the control ‘BRS Sarakura’. Significant differences were detected for fruit and plant characteristics (P<0.05). Lines CNPH 30,118, CNPH 30,147, CNPH 30,159, and CNPH 30,245 were selected based on plant height and height of the first bifurcation, earliness, and yield. They were evaluated again in 2016, together with ‘BRS Sarakura’ and ‘Jalapeño Plus F1’ as controls. In 2016, CNPH 30,159 and CNPH 30,118 were selected due to their potential for mechanical harvesting. They were evaluated for height of the first bifurcation (>10cm), large fruits (11 cm x 4 cm), high pulp firmness (11 N), wall thickness (about 5mm), and content of capsaicinoid substances (>50,000 SHU). Selected lines are undergoing additional field evaluation for mechanical harvesting with the Etgar Moses 1010 pepper harvester.


Author(s):  
Paola Alfonsa Vieira Lo Monaco ◽  
Josean de Castro Vieira ◽  
João Nacir Colombo ◽  
Marcelo Rodrigo Krause ◽  
Gustavo Haddad Souza Vieira ◽  
...  

Considering the need to reduce costs in the production of seedlings, the use of agricultural wastes becomes essential. The objective of this study was to evaluate a substrate composed of agricultural residues replacing the commercial substrate. The experiment was carried out in two phases. For the first phase, seedling production, we used a completely randomized design with six treatments and eight replications, using commercial substrate (Bioplant®) and five treatments with increasing proportions of moinha/descending proportions of rice husk (0/40; 10/30; 20/20; 30/10 and 40/0%), and fixed proportions of coconut fiber (15%) and pine bark (45%). We evaluated plant height, stem diameter, number of leaves, root and shoot dry masses, and Dickson quality index at 33 days after sowing. In the second experiment, cabbage development under field conditions, the treatments were maintained with four replications, using the randomized block design. We evaluated cycle length, compactness, head and stem diameter, number of basal external leaves, mass of fresh matter of the head, and commercial yield. We recommend a substrate composed of 40% moinha, 15% coconut fiber, and 45% pine bark in the production of cabbage seedlings, replacing the commercial substrate.


2016 ◽  
Vol 42 (4) ◽  
pp. 303-307
Author(s):  
Vander Rocha Lacerda ◽  
◽  
Diemesson San Tiago Mendes ◽  
Fernando da Silva Rocha ◽  
Maria de Fátima Gonçalves Fernandes ◽  
...  

ABSTRACT Propagation of “coquinho-azedo” (Butia capitata) is limited due to dormancy and high incidence of fungi in its seeds. The aim of this study was to evaluate the effect of treating “coquinho-azedo” seeds with different concentrations of bactericide and/or fungicide on the incidence of fungi and on the germination of seeds. Thus, B. capitata seeds were immersed in four doses of the bactericide kasugamycin (0, 1.5, 3.0 and 4.5 mL/L) and/or in four concentrations of the fungicide carbendazim+ thiram (0, 2.92, 5.84 e 8.75 mL/Kg), totaling 16 treatments. After the treatments, the operculum was removed from the seeds, which were placed on trays containing autoclaved sand, covered with transparent plastic film and kept in the nursery. In the germination test, treatments were distributed in randomized block design, factorial arrangement of 4x4 (bactericidal doses x fungicide doses), with four replicates of 50 seeds per plot. For the test of seed health quality, the Blotter test was employed in completely randomized design, using 20 replicates and 10 seeds. Health quality and germination were evaluated at 15 and 40 days after the treatment of seeds, respectively. There was no interaction between the bactericide and the fungicide on germination and control of fungi associated with seeds. However, there was an effect of fungicide concentrations on the evaluated parameters. We observed a negative correlation between the concentrations of the fungicide carbendazim + thiram and fungal incidence, and a positive correlation between the fungicide concentrations and seed germination. Therefore, fungicide treatment reduces the fungal incidence and provides better germination of B. capitata seeds.


2020 ◽  
Vol 18 (2) ◽  
pp. 60
Author(s):  
M. SYAKIR ◽  
GUSMAINI GUSMAINI

<p>ABSTRAK<br />Tanaman nilam (Pogostemon cablin Benth) sudah lama dibudi-<br />dayakan, namun produktivitas dan mutu minyak yang dihasilkan masih<br />rendah. Rendahnya produktivitas dan mutu minyak tersebut antara lain<br />disebabkan teknologi budidaya yang masih sederhana, dan berkembangnya<br />penyakit, seperti penyakit layu bakteri dan budog, serta hama yang<br />disebabkan oleh nematoda. Penelitian ini bertujuan untuk memperoleh<br />sumber dan dosis kalium yang tepat dalam meningkatkan pertumbuhan<br />dan produksi tanaman nilam. Kegiatan ini merupakan penelitian lapang<br />yang dilakukan di Kuningan, Jawa Barat, dari bulan Januari sampai<br />Desember 2009. Percobaan disusun menggunakan rancangan acak<br />kelompok lengkap, 9 perlakuan dengan 3 ulangan. Perlakuan terdiri atas<br />1) kontrol, 2) dosis KCl 60 kg/ha, 3) dosis KCl 120 kg/ha, 4) dosis KCl<br />180 kg/ha, 5) dosis KCl 240 kg/ha, 6) dosis K 2 SO 4 60 kg/ha, 7) dosis<br />K 2 SO 4 120 kg/ha, 8) dosis K 2 SO 4 180 kg/ha, 9) dosis K 2 SO 4 240 kg/ha.<br />Hasil penelitian menunjukkan bahwa sumber dan dosis kalium secara<br />nyata meningkatkan pertumbuhan dan produksi dibandingkan dengan<br />kontrol. Pertumbuhan tanaman, produksi terna kering, kadar dan produksi<br />minyak nilam terbaik ditunjukkan oleh perlakuan KCl atau K 2 SO 4 dengan<br />dosis 60 kg/ha. Serapan hara N dan P yang tertinggi ditunjukkan oleh<br />perlakuan pemberian 60 kg K 2 SO 4 /ha dan serapan hara K tertinggi pada<br />perlakuan 120 kg KCl/ha.<br />Kata kunci : Pogostemon cablin Benth, kalium, sumber, dosis, produksi,<br />patchouli alkohol</p><p>ABSTRACT<br />Effect of potassium sources on application yield and<br />quality of patchouli<br />Patchouli (Pogostemon cablin Benth) is an aromatic plant that has<br />long been cultivated in Indonesia, however its productivity and quality are<br />still low due to simple cultivation technology, and the development of<br />diseases, such as bacterial wilt disease, budog, and pests caused by<br />nematodes. This study aimed at obtaining sources and dosage of potassium<br />fertilizers to increase plant growth and oil yield of patchouli. The research<br />was conducted in Kuningan, West Java, from May to December 2009 and<br />was arranged using randomized block design, with 9 treatments and 3<br />replicates. There were 9 treatments consisting of : 1) control, 2) 60 kg<br />KCl/ha, 3) 120 kg KCl/ha, 4) 180 kg KCl/ha, 5) 240 kg KCl/ha, 6) 60 kg<br />K 2 SO 4 /ha, 7) 120 kg K 2 SO 4 /ha, 8) 180 kg K 2 SO 4 /ha, and 9) 240 kg<br />K 2 SO 4 /ha. The research results showed that the sources and dosage of<br />potassium fertilizers significantly affected growth, fresh herbal yield and<br />patchouli oil. The best plant growth, dry herbage yield, content and yield<br />of patchouli oil were obtained from the treatment of 60 kg/ha of KCl or<br />K 2 SO 4 . The highest N and P uptakes were shown by 60 kg K 2 SO 4 /ha<br />treatment and the highest K nutrient uptake was shown by 120 kg KCl/ha.<br />Key words : Pogostemon cablin Benth, potassium, source, dosage, yield,<br />patchouli olcohol</p>


2017 ◽  
Vol 17 (1) ◽  
Author(s):  
Anung Wahyudi ◽  
Ratna Dewi

The quality and production of watermelon in Indonesia is low relatively. We introduced "ToPAS" (toping, pruning, arranging and selection), the innovation of cultivation technology in an effort to improve the quality and production of watermelon. Our study was conducted in State Polytechnic of Lampung yield trials from May~August 2014, and used 12 varieties of hybrid watermelons with randomized block design two factors. The results of variance analyses in "ToPAS" system showed that productivity of watermelon fruit (oval and round type) are higher compared with conventional cultivation systems. We suggested using "ToPAS" system in watermelon cultivation to improve the cultivation technology, increasing quality and production of watermelon fruit. “ToPAS” also suggested for watermelon breeding program.Key word : cultivation, production, ToPAS, watermelon


2019 ◽  
Vol 3 (2) ◽  
pp. 213-225
Author(s):  
Yun Sondang ◽  
Khazy Anty ◽  
Ramond Siregar

The productivity of land and plants have decreased slowly, due to the use of inorganic fertilizers continuously. Efforts to improve productivity are reducing inorganic fertilizers and returning organic matter to the soil. The aim of this research are (1) to identify the chemical characteristics of biofertilizer with an indigenous microorganism as bioactivators and (2) to study the effect of biofertilizer on nutrient uptake of maize plant. The research was conducted at Laboratory, Greenhouse, and Experimental Field of Politeknik Pertanian Negeri Payakumbuh, West Sumatra Indonesia. The first step experiment in the Laboratory was produced indigenous microorganism from banana humps. The second step of making bio-fertilizers in Greenhouse used a Completely Randomized Design with four treatments of indigenous microorganism (IMO) level 0%, 10%, 20%, 30% in biofertilizer with five replications. The third step of biofertilizer application on the Experimental Field used Randomized Block Design Factorial arranged with two factors and three replications, the first factor IMO level in biofertilizer (M) 0%, 10%, 20%, 30% and the second factor was the dosage of inorganic fertilizer (P) 0%, 50%, 100% of the recommended dosage, 12 combinations of treatments were obtained. Results showed that microbe consortium (Enterobacter cloacae, Bacillus subtilis, Pseudomonas fluorescens, Aspergillus niger, and Trichoderma asperellum) in biofertilizers with different levels would affect the chemical characteristics of biofertilizer. Biofertilizers influences nutrient uptake of P and K maize plant, while inorganic fertilizer influences nutrient uptake of N and P maize plant.


2019 ◽  
Vol 2 (2) ◽  
pp. 32-43
Author(s):  
Muhammad Syifa’ ◽  
Ana Amiroh ◽  
Suharso Suharso

Corn plants (Zea mays L.) are one of the second staple food plants after rice plants in Indonesia. Some people in Indonesia consume corn as a staple food. Given the importance of corn crop commodities, as one of the staple foods. So there needs to be an effort to increase the growth and production of corn plants. One such effort is the application of bokashi and varieties. This research was conducted in Kranji Village, Paciran District, Lamongan Regency. With the altitude of ± 5 meters above sea level. The time of the study was conducted from March to June 2019. This study uses Factorial Randomized Block Design (RBD), which consists of two factors, namely: bokashi and varieties. Each factor consists of 3 levels that are repeated 3 times, namely: the first factor, bokashi consists of 3 levels, namely without bokashi, bokashi cow cage, bokashi chicken coop. The second factor, the variety consisted of 3 levels namely BISI 18, NK7328 SUMO, and BISI 2. Observation of growth and production of maize plants includes vegetative phase (plant height and number of leaves) and generative phase (ear length, ear diameter, weight of peel cob ear off harvest, weight of peel cob off harvest per hectare and weight of 1000 seeds). The results showed the interaction between the treatment of bokashi and varieties on the height of maize plants and the treatment of NK7328 SUMO varieties had a good effect on all parameters of observation.


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