scholarly journals CRESCIMENTO DE MOGNO AFRICANO SUBMETIDO A DIFERENTES NÍVEIS DE IRRIGAÇÃO POR MICROASPERSÃO

Irriga ◽  
2018 ◽  
Vol 21 (3) ◽  
pp. 466 ◽  
Author(s):  
José Alves Júnior ◽  
Luis Henrique Antunes Barbosa ◽  
Derblai Casaroli ◽  
Adão Wagner Pego Evangelista ◽  
Fernando Rezende Costa

CRESCIMENTO DE MOGNO AFRICANO SUBMETIDO A DIFERENTES NÍVEIS DE IRRIGAÇÃO POR MICROASPERSÃO  JOSÉ ALVES JÚNIOR1; LUIS HENRIQUE ANTUNES BARBOSA2; DERBLAI CASAROLI1; ADÃO WAGNER PEGO EVANGELISTA1 E FERNANDO REZENDE COSTA2 1 Eng. Agr. Professor Adjunto da Escola de Agronomia (EA) da Universidade Federal de Goiás (UFG), Avenida Esperança, s/n, Campus Samambaia, Goiânia, Goiás, Brasil, CEP: 74.690-900.  [email protected], [email protected], [email protected] Eng. Agr. e Pós-graduando em Agronomia (solo e água) na EA – UFG, Avenida Esperança, s/n, Campus Samambaia, Goiânia, Goiás, Brasil, CEP: 74.690-900. [email protected], [email protected]  1 RESUMO  O mogno africano vem se destacando no Brasil em plantios comercias, entretanto, ainda são escassas informações referentes às respostas desta planta ao ambiente, sobretudo, em termos de capacidade evapotranspirativa e necessidade hídrica. Assim, como um dos entraves para a produção vegetal é o déficit hídrico, uma alternativa seria irrigação no início do ciclo. O objetivo deste estudo foi avaliar o crescimento de plantas jovens de mogno irrigadas por microaspersão. O estudo foi realizado em Bonfinópolis-GO, nos dois primeiros anos em campo. As plantas foram implantadas com espaçamento 5x5m, em Latossolo Vermelho distroférrico, utilizando 1 emissor à cada 2 plantas. Utilizou-se o delineamento em blocos ao acaso, contendo nove tratamentos (vazões: 0, 20, 30, 35, 40, 50, 58, 70 e 90 Lh-1), com três repetições. Avaliaram-se o diâmetro de caule, o diâmetro à altura do peito (DAP), alturas de planta e de fuste. Observaram-se diferenças significativas (p>0,01) entre os tratamentos, ajustando-se equações lineares para todas variáveis. A altura média das plantas aos 2 meses de idade era 0,28m e aos 20 meses variou 2,75m sem irrigação a 3,72m irrigado. Inicialmente o fuste era de 0,25m e ao final variou de 0,53m sem irrigação a 0,94m irrigado. Diâmetros de caule, dos 2 aos 16 meses de idade, variaram de 0,79 a 5,9cm sem irrigação e a 6,5cm irrigado. E dos 16 aos 20 meses o DAP variou de 2,6 a 3,7cm sem irrigação e 4,6 a 5,8cm irrigando. As maiores médias para todas as variáveis analisadas foram obtidas com a aplicação de 90Lh-1. Palavras-chave: Khaya ivorensis; déficit hídrico; madeira nobre; irrigação localizada; manejo da água.  ALVES JÚNIOR. J.; BARBOSA, L. H. A; CASAROLI, D.1; EVANGELISTA,  A. W. P. COSTA, F. R.GROWTH OF MAHOGANY AFRICAN YOUNG TREES SUBMITED TO DIFFERENT MICROSPRINKLER IRRIGATION LEVELS  2 ABSTRACT African mahogany is a tree species that has been increasing in Brazil in commercial forest. However, there is still scarce information about the responses of  this species to environment, especially in evapotranspiration and water requirement. Thus, as one of the barriers for crop production is water deficit, an alternative would be the irrigation in the beginning of the cycle in field. The objective of this study was to evaluate the growth of mahogany young trees irrigated by microsprinkler. The study was conducted in Bonfinópolis-GO, Brazil, the first two years in the field. The plants were implanted with 5x5m spacing in Oxisol using 1 emitter to each 2 plants. The design was used in a randomized block design, with nine treatments (flow rates: 0, 20, 30, 35, 40, 50, 58, 70 and 90Lh-1), with three replications. We evaluated the stem diameter, the diameter at breast height (DAP), plant height and stem. There were significant differences (p> 0.01) between treatments, adjusting linear equations for all variables. The average plant height at 2 months of age was 0.28m and at 20 months ranged from 2.75m without irrigation to 3.72m irrigated. Initially the stem was 0.25 m and by the end it ranged from 0.53m without irrigation to 0.94m irrigated. Stem diameters, from 2 to 16 months old, ranged from 0.79 to 5.9 cm without irrigation and 6.5cm irrigated. And from 16 to 20 months DAP ranged from 2.6 to 3.7cm without irrigation and 4.6 to 5.8 cm irrigated. The best tree growth was obtained by applying 90Lh-1. Keywords: Khaya ivorensis; drougth; hardwoods; trickle irrigation; water management

2019 ◽  
Vol 5 (1) ◽  
pp. 17
Author(s):  
Zainudin Zainudin

This study aims to determine the dose of laying hens manure and fertilizer NPK 16:16:16 Mutiara right and the interaction between the dosing laying hen manure and NPK 16:16:16 pearls in improving plant growth Lai Mahakam immature. The study was conducted over four months, from May to September 2015 starting from land clearance, maintenance of plants, to capture data. This research was conducted at Badak Mekar village, Muara Badak, Regency. The design of the study is a randomized block design factorial 3 x 3 with three replications. The first factor is the dose of chicken manure (K) consisting of 3 levels: K0 (control), K1 (10 kg / plant) and K2 (20 kg / plant). The second factor is the dose of fertilizer NPK 16:16:16 Mutiara (M) comprises 3 levels: M0 (Control), M1 (200 g / plant) and M2 (400 g / plant). The treatment dose of chicken manure had no significant effect on all parameters of observation. Treatment fertilizer NPK 16:16:16 Mutiara very significant effect on all parameters of observation. The best treatment for an average plant height increment of age 90 days after treatment was achieved by treatment M1 (200 g / plant) is 15.54 cm while the lowest treatment was achieved by treatment M0 (control) is 7.03 cm. Interaction between chicken manure and NPK 16:16:16 Mutiara not significantly affected all parameters of observation.


Author(s):  
. Khadijah ◽  
. Eliyin ◽  
. Mulyono ◽  
. Basyirah ◽  
. Amiruddin

Potatoes (Solanum tuberesum, L) are one of the main foods for the needs of the world community. Therefore, increasing potato crop production is considered important. For this purpose, the utilization of a mixture of rice husk biochar with compost can provide the best results up to three times the planting season. Coffee skin can also be found in form of compost for the utilization process. However, due to the lack of farmer’s knowledge about the benefits that can be provided by skin compost to maintain the level of soil fertility. This study aims to analys the effect of biochar and coffee skin compost on the growth and yield of potato crops. Plant height, number of shoots, number of tubers per clump, and per plot tuber weight was a parameter of observation. This experiment used a factorial randomized planting block design using several doses of biochar and coffee skin compost.  The treatment of biochar dosage did not significantly affect all parameters observed. The treatment of the effect of doses of coffee skin compost had a very significant effect on plant height at all ages of observation. The average plant height increases with the higher doses of red coffee skin compost given has a very significant effect on the number of tubers per clump and the weight of per plot tubers. There was no real interaction between the biochar dose and the red coffee skin compost dosage against all observed parameters.


AGRICA ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 57-67
Author(s):  
Murdaningsih Murdaningsih

Research on Application of Liquid Organic Fertilizer from Market Waste in Chinese Mustard Plants (Brasica juncea L.). The production of mustard greens in Ende Regency is still low compared to the production of mustard greens. This condition is caused by fertilization that has not been optimal. Efforts to increase mustard production through the application of technology, especially the use of fertilizers, including using liquid organic fertilizer Market waste that can provide nutrients for plants.This study aims to determine the application dose of liquid organic fertilizer from market waste and the response of growth and yield of mustard plants. The study was conducted in the experimental garden of the Faculty of Agriculture, University of Flores in Ende, using a Randomized Block Design consisting of five treatments using Liquid organic fertilizer (POC) from Market Waste namely L0 (without POC), L1 (10 liters of POC), L2 (20 liters POC), L3 (30 liters of POC), L4 (40 liters of POC), repeated four times. The results showed that the application of POC from market waste significantly affected plant height, number of leaves, fresh weight of mustard greens, fresh weight of mustard ha-1 and dose of 40 liters ha-1 showed the best growth, which was an average plant height of 24.68 cm, number of leaves 9.25 strands, fresh weight of mustard 147.40 g and production of mustard 23.58 tons ha-1


1970 ◽  
Vol 4 (2) ◽  
pp. 1-10
Author(s):  
Angga Aprinaldi. Elfi Indrawanis. A. Haitami

This study aims to determine the effect of giving empty bunch compost (KOTAKPLUS) on the growth and production of red lettuce (Lactuca sativa Var. Crispa) verticulture. This study used a non-factorial randomized block design (RBD) with 5 levels of treatment, namely the provision of empty bunch compost (KOTAKPLUS) consisting of: A0 = Top soil, A1 = 3: 1 ratio (Top Soil: (KOTAKPLUS), A2 = Comparison 2: 2 (Top Soil: KOTAKPLUS). A3 = Ratio 1: 3 (Top Soil: KOTAKPLUS), and A4 = Box Plus 100%. The parameters observed consisted of Plant Height (cm), Number of Leaves (cm), Leaf Width (cm ), Plant Weight per Plot (kg), and Consumption Weight per Plot (kg). Based on the results of the study, it can be concluded that the provision of empty bunch compost (KOTAKPLUS) has a significant effect on all growth parameters and production of red lettuce (Lactuca sativa Var. Crispa) ) verticulture, with the best treatment found in the A3 (Top Soil 1: 3 Compost KOTAKPLUS) treatment, with an average plant height of 13.40 cm, number of leaves 9.67, leaf width 8.98 cm, plant weight per plot of 3.17 kg, and consumption weight per plot of 2.28 kg . Maximum Extract 250-300 words in Indonesian and English with 11 points Arial. Abstract must be clear, descriptive and must provide a brief description of the problem being carried out / researched. Abstract includes the reasons for selecting the topic or the importance of the research topic, research methods and a summary of the results. The abstract should end with a comment about the importance of the result or a brief conclusion


2011 ◽  
Vol 21 (4) ◽  
pp. 315
Author(s):  
Sri Hadiati ◽  
Sri Yuliati ◽  
Jumjumidang

Kandungan Ca-oksalat yang tinggi pada buah nenas kurang baik bagi kesehatan, sedangkan tanaman nenas yang daunnya tidak berduri memudahkan petani dalam pemeliharaannya. Penelitian bertujuan untuk mengevaluasi pertumbuhan dan hasil beberapa kandidat varietas nenas rendah oksalat dan nenas manis tanpa duri. Penelitian dilakukan mulai bulan Juni 2009 sampai dengan Desember 2010 di Kebun Percobaan Subang. Rancangan percobaan yang digunakan ialah acak kelompok dengan lima perlakuan yaitu dua kandidat varietas nenas rendah oksalat (Q dan EE), satu kandidat varietas nenas manis tanpa duri (P), dan dua varietas pembanding (Simadu dan Ponggok) dengan empat ulangan. Setiap unit percobaan terdiri atas 52 tanaman dan jumlah sampel yang diamati ialah 10 tanaman yang diambil secara acak. Tanaman nenas ditanam dengan sistem dua baris, jarak antarbaris 90 cm dan jarak tanam dalam baris (50 x 50) cm. Hasil penelitian menunjukkan bahwa pada akhir pertumbuhan vegetatif (umur 11 bulan setelah tanam) rerata tinggi tanaman pada aksesi yang diuji  berbeda nyata, sedangkan varietas Ponggok mempunyai tinggi tanaman tertinggi (88,94 cm), jumlah daun antaraksesi tidak berbeda nyata, yaitu berkisar 41-51 helai. Persentase tanaman berbuah terbanyak ialah varietas Ponggok (94,86%),  sebaliknya  varietas Simadu  paling sedikit (5,6%). Aksesi P, Q, dan EE mempunyai kualitas buah yang kurang baik dibandingkan varietas pembanding  Simadu, tetapi aksesi EE mempunyai kualitas buah (bobot buah 910,00 g, vitamin C 24,53 mg/100 g, dan kadar oksalat 486,85 ppm) yang lebih baik dibandingkan dengan varietas pembanding Ponggok. Aksesi EE berpeluang untuk dijadikan varietas unggul baru.<br /><br /><br /><br />The high Ca-oxalate content in pineapple fruit is not good for health. Meanwhile pineapple plants with spineless leaves make farmers easy in their maintainance. The aim of this research was to evaluate growth and yield of several pineapple candidates  with low oxalate, sweet taste, and spineless leaves.  The research was conducted from June 2009 to December 2010 at Subang Research Station. A randomized block design with five treatments (two candidates of pineapple varieties with low oxalate content (Q and EE), one candidate of pineapple variety with spineless leaves (P), and two popular varieties as comparison (Simadu and Ponggok) with four replications was used in this study.  Each unit experiment consisted of 52 plants and 10 plants of sampled randomly were observed. Pineapple plants were planted in two rows with plant distance 50x50 cm. The results showed that at the end of vegetative growth (11 months after planting) the average plant height of accessions tested were significantly different, Ponggok variety had the highest of plant height (88.94 cm) but the number of leaves ranging from 41-51was not significantly different. Ponggok variety had the highest percentage of fruiting plants (94.86%), and conversely Simadu variety was the least one (5.6%). Accessions of P, Q, and EE produced lower fruit quality than Simadu, but accession of EE had better fruit quality in fruit weight 910.00 g, vitamin C 24.53 mg/100 g, and oxalate content 486.25 ppm than Ponggok variety. The EE was a promising accession that can be realeased as a new superior variety.<br /><br />


Cassowary ◽  
2021 ◽  
Vol 4 (2) ◽  
pp. 133-138
Author(s):  
Fahmil Huda ◽  
Ainun Marliah ◽  
Erita Hayati ◽  
Hasanuddin ◽  
Zuyasna Zuyasna

The research objective was to determine the growth and production of the fifth generation mutant soybean (M5) at the Lampahan Bener Meriah University Farm. This study used a non-factorial randomized block design (RBD) with three replications, where four genotypes of Kipas Merah mutants were tested and compared with Kipas Merah (their parents) and Grobogan variety (large seeds). The variables observed were plant height, number of branches, number of productive branches, days of flowering, number of pods, number of pithy pods, number of seeds, weight of seeds per plant and weight of 100 seeds. The results of this study indicate that the M5 mutant soybean genotype has no significant different on plant height at age 4, 6, 8 WAP, number of branches per plant aged 6, 8 WAP, number of pods, and number of productive branches per plant. The highest average plant height and the highest number of productive branches found in Kipas Merah (G0) varieties. Mutant soybean genotype M5 had a very significant effect on flowering age and seed weight per plot. The fastest flowering was Kipas Merah (G0) and the latest flowering was A11 (G4) and A14 (G5) mutants. The highest weight of 100 seeds found in mutant A11 (G4) about 18.585 g and no significant different with Grobogan variety (18.827 g). The highest seed weight per plot found in mutant A11 (G4) about 169.35g. Based on the results of this study, mutant A11 (G4) was the best growth and production of the tested M5 genotypes.


2018 ◽  
Vol 3 (2) ◽  
pp. 28-35
Author(s):  
Muhamad Khais Prayoga ◽  
Neni Rostini ◽  
Tualar Simarmata ◽  
Mieke Rochimi Setiawati ◽  
Silke Stoeber ◽  
...  

Type of rice varieties is one of the important factors that affecting rice production. For countries, rice breeders of Indonesia can take advantage of specific environmental potential in determining the distribution policy of superior varieties. The purpose of this study was to observe the appearance of plant height and the number of tillers of four rice varieties in Ciganjeng Village, namely Mendawak, Inpari 34, Ciherang, and Bangir. The design used completely randomized block design and repeated three times. Observations were carried out eight times in the vegetative phase, started from 14 days to 63 days after planting. This research was participatory and involved farmers. Farmers roled as observers to measure and record observation. All data analyzed by ANOVA with tukey’s HSD test as post hoc test. The results showed that both Inpari 34 and Bangir variety had the highest average plant height growth while Mendawak and Bangir has the highest average number of tillers.


2018 ◽  
Vol 9 (2) ◽  
pp. 153-163
Author(s):  
Wiwik Ambarsari ◽  
Henly Yuliana

The study aimed to determine the effect of the combination of city waste compost and cattle manure on the growth and yield of pakcoy plants (Brassica rapa, L. Chinensis) in Aluvial, Indramayu Regency. The study was conducted at the Experimental Garden of the Faculty of Agriculture, Wiralodra University, Indramayu Regency from March to August 2018. This study used Factorial Pattern Randomized Block Design with two factors. The first factor is city waste compost and the second factor is cattle manure with 4 levels: 0%, 3.0%, 6.0%, and 9.0%, repeated twice. The results showed that there was an independent influence between city waste compost and cattle manure on plant height and number of leaves. The best combination to increase the feasibility weight of pakcoy consumption is by giving city waste compost 9.0% (S4) and cattle manure 6.0% (K3).


2017 ◽  
Vol 38 (4Supl1) ◽  
pp. 2399 ◽  
Author(s):  
Diogo Brito de Almeida ◽  
José Geraldo Barbosa ◽  
José Antônio Saraiva Grossi ◽  
Fernando Luiz Finger ◽  
Joice Crescencio Heidemann

Exposure of bulbs to cold, a physiological phenomenon called vernalization, and bulb size are important factors in the production of lily bulbs and flowers. This study aimed to verify the influence of vernalization of bulbs on flowering cut lily plants, as well as the impact of size and shape of harvest on the production and quality of flowers and bulbs. In turn, the way the stems of the plants used for cut-flower production are cropped is of higher importance for the production of new flower bulbs. In this sense, the experiment was conducted in Viçosa, MG, in a greenhouse in a randomized block design, in split splot scheme with three replications, in which the vernalization periods (25, 35 and 45 days at 4 ± 1 C) constituted the plots; bulb sizes (diameters of 3.2-3.8 cm; 2.5-3.2 cm 1.9- and 2.5 cm), subplots and ways to harvest (full harvest of the stem at the required length for the commercial harvest of the flower, commercial stem harvest at the commercial length, maintaining 10cm of stem in the soil; removal of the floral buds as soon as their appearance is observed and harvest at the end of the season), the sub subplots. The bulbs were planted in beds, with 15 x 20 cm spacing. It was evaluated the number of plants that flowered and the number of flowers, the length and the diameter of the floral buds, fresh and dry weights, diameter and plant height as well as number, perimeter and amount of fresh and dry bulbs. There was a decrease in the plant height with the increase of the vernalization period and a reduction of the diameter of the planted bulbs, as well as of the number and the fresh and dry weights of the produced buds. The production of flowers and buds in number, size and weight was directly proportional to the size of the planted bulbs, while the form of harvest with removal of flower buds increased the number, the perimeter and the fresh and dry weights of the buds. Bulbs with diameter between 3.2 - 3.8 cm, stored for 25 days in cold chamber enable greater production of flowers and the highest stem height, factors that favor the increase in market value.


Author(s):  
João A. da Silva ◽  
Sérgio L. R. Donato ◽  
Paulo E. R. Donato ◽  
Evilasio dos S. Souza ◽  
Milton C. Padilha Júnior ◽  
...  

ABSTRACT The objective was to evaluate the effect of different spacings and mineral fertilizations on cactus pear growth and production in a randomized block design, with three replicates, in a 3 x 4 factorial scheme: three spacings, 1.00 x 0.50 m, 2.00 x 0.25 m and 3.00 x 1.00 x 0.25 m, and four fertilizations, 000-000-000, 000-150-000, 200-150-000 and 200-150-100 kg ha-1 of N, P2O5 and K2O, respectively. Plant growth was evaluated between 90 and 390 days and production and growth were evaluated at 620 days after planting. There were significant interactions between spacing and fertilization for plant height, number of cladodes and cladode area index from 90 to 390 days and for production of fresh and dry matter at 620 days after planting. Spacing influenced cladode area index, while fertilization influenced plant height, number of cladodes and cladode area index at 620 days after planting. Plant height showed cubic effect for the days after planting. Number of cladodes and cladode area index were dependent on spacing, fertilization and plant age, and fitted to cubic models. The best results of growth and production of fresh and dry matter are associated with NPK and NP fertilizations and the spacing of 1.00 x 0.50 m.


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