scholarly journals Respon Pertumbuhan Tanaman Cengkeh (Syzygium aromaticum (L.) Merr. Perr.) dengan Aplikasi Pupuk Organik-Anorganik dan Triakontanol

2020 ◽  
Vol 47 (3) ◽  
pp. 326-332
Author(s):  
Syahdin Launuru ◽  
Ade Wachjar ◽  
Dan Ani Kurniawati

Application of right dosage of fertilizer and concentration of plant growth regulator are supporting factor of clove growth. This study was aimed to obtain the best combination of organic-inorganic fertilizer, the best triacontanol concentration and both interactions for increasing clove growth. This study used a Randomized Complete Block Design (RCBD) with two factors. The first factor was the organic-inorganic fertilizer dosage package that consisted of 6 levels, i.e no fertilizer, 100% recommended dosage of inorganic fertilizer (r.d.i.f), 25% recommended dosage of organic fertilizer (r.d.o.f) + 75% r.d.i.f, 50% r.d.o.f + 50% r.d.i.f, 75% r.d.o.f + 25% r.d.i.f, 100% r.d.o.f. The second factor was the concentration of triacontanol that consisted of 3 levels, i.e no triacontanol, 2 mg L-1 and 4 mg L-1. The results showed that the application of 25% r.d.o.f + 75% r.d.i.f produced the best clove growth, but it was not significantly different from the combination treatment of the two other types of fertilizer as indicated by the greatest improvement on stem diameter, branches number, leaf area, chlorophyll a, chlorophyll b, total chlorophyll and carotenoids. Clove plants did not respond to the application of triacontanol at a concentration of 2 mg L-1, but gave a negative response to the application of triacontanol 4 mg L-1 on the plant height and leaf area variables. The interaction of the two factors did not have significant effects on all variables. Keywords: chlorophyll, morphology, nutrient dynamics, physiology, vegetative growth  

Author(s):  
Totong Siwanto ◽  
Sugiyanta , ◽  
Maya Melati

ABSTRACT<br />Application of organic fertilizer into the soil is designated as a source of macro, micro nutrients and organic acids; it also acts as soil ameliorant that improve physical, chemical and biological properties of soil. Application of high rates organic fertilizer has a constraint namely the availability and ease of application. Therefore, it is necessary to learn the use of organic fertilizer with low rates to improve the efficiency of chemical fertilizers. This research was aimed to study the effect of organic and inorganic fertilizers on growth and yield of paddy rice, as well as the efficiency of N, P, K inorganic fertilizer. Field experiment was conducted at Sawah Baru Research Station, University Farm IPB, Bogor, West Java from September to December 2013. The experiment used Randomized Block Design consisted of two factors: rates of organic fertilizer (0, 250, 500, 750, and 1,000 kg ha-1), and rates of inorganic fertilizer (0, 100, 200, 300, and 400 kg ha-1). The results suggested that the application of 1,000 kg organic fertilizer ha-1 + 400 kg inorganic fertilizer ha-1 did not show significant interaction. Application of organic fertilizer alone up to 1,000 kg ha-1 resulted in low growth and yield. Increasing rates of  application up to 400 kg inorganic fertilizer ha-1 increased the growth and yield of paddy rice. The highest N efficiency was 89.19% at a rate of 500 kg organic fertilizer ha-1 + 200 kg inorganic fertilizer ha-1, whereas the highest efficiency of P and K, respectively were 69.55% and 92.52% at a rate of 750 kg organic fertilizer ha-1 + 300 kg inorganic fertilizer ha-1.<br />Keywords: NPK, organic fertilizer, paddy rice


2018 ◽  
Vol 14 (1) ◽  
pp. 21-27
Author(s):  
Maimuna La Habi

Effort to reduce the high dependence of farmers on urea fertilizers is adding sago pith waste granular compost as organic fertilizer. This research is conducted to develop granular-enriched compost and evaluate the effectiveness of granular-enriched compost on red onion cultivation. The application of granular-enriched compost was designed in a Randomized Block Design with three replicates. Treatments included 1) without fertilizers (KGES1); 2) the granular-enriched compost (8 t/ha) (KGES2); 3) recommended dosage of inorganic fertilizers such as Urea, SP-36, and KCl (KGES3); 4) inorganic fertilizer + granular-enriched compost (8 t/ha) (KGES4); 5) ½ x dosage of inorganic fertilizer + granular-enriched compost (8 t/ha) (KGES5); 6) 2× dosage of inorganic fertilizer + granular-enriched compost (8 t/ha) (KGES6); 7) ½× dosage of inorganic fertilizer + granular-enriched compost (12 t/ha) (KGES7) and 8) 2× dosage of inorganic fertilizer + granular-enriched compost (4 t/ha) (KGES8). The granular-enriched compost used in this research has characteristic such as N 2.43 %, P 0.59 %, and K 0.87 %. Based on this study it could be stated that reduction a half dose of inorganic fertilizer combined with compost granule 12 t/ha (KGES7) could give profitable dry bulb yield (13 t/ha) or increased 32% over the inorganic fertilizer. This combination could possibly reduce the amount of the inorganic fertilizer; therefore, it can be used for improving the effectiveness of fertilizer application on the red onion cultivation. Keywords: granular-enriched compost, inorganic, red-onion   ABSTRAK Upaya untuk dapat mengurangi tingginya ketergantungan petani terhadap pupuk urea yang paling murah yaitu dengan penambahan pupuk organik kompos atau kompos granul. Penelitian ini bertujuan untuk mengembangkan pupuk organik diperkaya bentuk granul dari kompos ela sagu dan mengevaluasi efektifitasnya pada budidaya tanaman bawang merah. Rancangan penelitian yang digunakan yaitu rancangan acak kelompok dengan tiga kali ulangan. Perlakuan terdiri atas: tanpa pupuk (KGES1), kompos granul (8 t/ha) (KGES2), pupuk anorganik (Urea, SP-36, dan KCl) dosis anjuran (KGES3), pupuk anorganik + kompos granul (8 t/ha) (KGES4), ½× dosis pupuk anorganik + kompos granul (8 t/ha) (KGES5), 2 kali dosis pupuk anorganik + kompos granul (8 t/ha) (KGES6), ½× dosis pupuk anorganik + kompos granul (12 t/ha) (KGES7) dan 2 kali dosis pupuk anorganik + kompos (4 t/ha) (KGES8). Pupuk kompos granul diperkaya dengan pupuk phonska yang digunakan dalam penelitian memiliki karakteristik sebagai berikut: kandungan N = 2,43%, P = 0,59% dan K= 0,87%. Hasil Penelitian menunjukkan bahwa pengurangan setengah dosis pupuk anorganik yang dikombinasikan dengan kompos granul 12 t/ha menghasilkan bobot kering umbi tertinggi (13 t/ha) atau meningkatkan hasil 32% dari aplikasi pupuk anorganik. Kata kunci: bawang merah, inorganik, kompost granula diperkaya


2021 ◽  
Vol 19 (1) ◽  
pp. 103-112
Author(s):  
S Bhujel ◽  
C Pant ◽  
S Sapkota

An experiment was conducted to evaluate the yield performance of potato varieties with chemical and organic fertilizer at Chilime, Rasuwa. The experiment consisted of eight treatment combinations laid out in two factors Randomized Complete Block Design (RCBD) with three replications. Four potato varieties (Khumal-Seto-1, Khumal-Ujjwal, Janak-Dev and Kufri-Jyoti) with fertilizer (Recommended dose of chemical fertilizer (100:100:60 NPK kg ha-1) and organic farmyard manure (15 mt ha-1) were used to make eight treatment combinations. The results showed that Janak-Dev had the highest plant height (69.3 cm) and canopy diameter (60.92 cm). Khumal-Seto-1 had highest number of main stems per hill (3.75) which were statistically similar to Kufri-Jyoti (3.42) and Khumal-Ujjwal (3.25). Janak-Dev had the lowest number of main stems per hill (1.87). The effect of fertilizer was nonsignificant. Flowering occurred earlier in Janak-Dev at 61.17 days after sowing while Kufri-Jyoti flowered after 73.17 days after sowing. The highest number of tubers were found in Khumal-Seto-1 (9.167) and lowest in Janak-Dev (5.750). Number of tubers per plant was not affected by types of fertilizers used. Maximum weight of each tuber (107.7 grams), yield per plant (780 grams) and yield per hectare (37.1 mt ha-1) were obtained from Kufri-Jyoti. These parameters were the highest from chemical fertilizer application. This field experiment showed that Kufri-Jyoti with recommended dose of chemical fertilizer was appropriate to get optimum yield under Chilime condition. SAARC J. Agric., 19(1): 103-112 (2021)


Author(s):  
Shih Hao Tony Peng ◽  
Chee Kong Yap ◽  
Roslan Arshad ◽  
Ee Wen Chai

The aim of the present study was to assess the efficacy of All Cosmos Industries (ACI) bio-organic and bio-chemical fertilizers and ACI N-Fixer (N-Bio Booster) on the paddy yields based on the field trial plots at Langkat, Medan, Indonesia. This application of ACI bio-organic fertilizer (NPK 5/5/5) and ACI bio-chemical (NPK 15/15/15) fertilizer and ACI N-Fixer tests were conducted at the paddy farm at Langkat from May-October 2018. This study employed a factorial randomized complete block design which consisted of two factors, namely: Factor I with four types of fertilizers while Factor II consisted of two paddy varieties (Inpari 30 and Inpari 32). Overall, the filled grains in the ACI treatments are significantly (P&lt; 0.05) higher than those in the control treatments that used Normal Chemical Compound NPK. Overall, total weight per meter&sup2; (368-617g) in ACI treatments are also significantly (P&lt; 0.05) higher than those (319-371g) in the control treatments. At harvesting time at 105 days after transplanting, significantly higher (P&lt; 0.05) colony counts (13-15 x 106 CFU/mL) (for ACI treatments), than those (8 x 106 CFU/mL) in the controls positively indicated higher total yields of paddy grains per hectare. It was found that the application of ACI bio-organic and bio-chemical fertilizers and ACI N-Fixer can improve paddy yields of the two rice varieties, between 16.4-38.2% (up to 5.75 MT/ha), in the field trial plots at Langkat. These commercial fertilizers play an imperative role in refining the soil fertility and thereby can increase the yield of rice production. Therefore, it is highly recommended that ACI bio-organic and ACI bio-chemical fertilizers and ACI N-Fixer (N-Bio Booster) can be employed to increase the paddy yield in this region.


Agric ◽  
2016 ◽  
Vol 25 (1) ◽  
pp. 58
Author(s):  
Triyani Dewi ◽  
Iswandi Anas ◽  
Suwarno ◽  
Dedi Nursyamsi

<p>The application of chemical fertilizers is costly and gradually lead to the environmental problems. Organic residue recycling is becoming an increasingly important aspect of environmentally sound sustainable agriculture. Organic content of these soils are mostly very low, while it is widely know that organic matter is very important to keep physical, chemical, and biological properties of soil as well as soil productivity. The objectives of the study were to know effect of organic fertlizer that high iron content on growth and production paddy rice. Pot experiment was conducted on May to November 2011 in green house. This experiment using a randomized complete block design with two factors; the types of soil (Endoaquert, Tropaquept, and Hapludult) and organic fertilizer<br />enriched with Fe (FeCl3) in various level. Each treatment was replicated three times. The results showed that the organic fertilizer enriched with iron up to 64000 mg.kg-1 didn’t significantly effect on the growth and rice production. Application of organic fertilizer in Tropaquept Sukamandi<br />can increase significantly on height plant, number of tiller, dry weight of grain and 1000-grain weight.</p>


2020 ◽  
Vol 19 (01) ◽  
pp. 16-23
Author(s):  
Loan T. Nguyen

The objective of the experiment was to evaluate effects of organic fertilizer levels and spray rates of organic solution on tomato yield. A 4 x 3 factorial field experiment arranged in a randomized complete block design was conducted in Spring - Summer season 2018 at the experimental site of Faculty of Agronomy (Vietnam National University of Agriculture). The two factors included (1) organic fertilizer rates with four levels (0, 11, 13.5, & 16 tons/ha) and (2) sprayed concentration of HB101 organic solution with three levels (0, 0.15, & 0.3 mL/L). The amount of water used for 1 ha was 10.000 L. The experimental results showed that increased amounts of organic fertilizer and HB101 solution doses positively increased the number of flowers per inflorescence, number of inflorescences per plant, number of fruits per plant, average weight of fruit, and tomato yield. Meanwhile, combinations of 16 tons/ha of organic fertilizer and HB101 solution at the concentrations of 0.3 mL/L and 0.15 mL/L gave the highest tomato yield with 44.0 tons/ha and 42.6 tons/ha, respectively. The highest profit margin obtained with the treatment of nonapplication of organic sources was 3.8. However, the highest economic profit was obtained with the treatment of 16 tons/ha of organic fertilizer combined with 0.15 mL/L HB101.


2019 ◽  
Vol 2 (1) ◽  
pp. 413-425
Author(s):  
Heldy Gunawan ◽  
Mutiara Dewi Puspitawati ◽  
Inanpi Hidayati Sumiasih

The cultivation of carambola produced some waste that can be used as organic fertilizer. Organic fertilizer is useful to improve soil conditions and enrich the nutrient content contained therein so that it is easily absorbed by cultivated plants such as pakcoy (Brassica rapa L.). The optimum pakcoy production is supported by good land management in order to meet the availability of nutrients needed by the addition of inorganic fertilizers and starfruit organic fertilizer. The study was conducted at Attaqie Farm, Tuban in November 2018 to May 2019. The experimental design used was randomized completely block design with two factors carambla derivated organic fertilizer 10 tons ha-1 , 20 tons ha-1, 30 tons ha-1 and inorganic fertilizer  0 kg ha-1; 50 kg ha-1; 100 kg ha-1. The results showed that carambola derivated organic fertilizer contained N, P, K, S, Ca, and Mg about 6.19%,  0.94%, 75.04%,  0.02%,  20.13%, and 47.23%, respectively. The dosage of 50% inorganic fertilizer and 10 tons of carambola organic fertilizer gave optimum results for the growth of plant height, number of leaves, leaf width, stem diameter, canopy weight, root length and root weight of pakcoy plants. Fertilization using a dose of organic fertilizer 10 tons ha-1 could reduce 50% of the need of inorganic fertilizer.Keywords: fertilizer efficiency, organic fertilizer, pakcoy, starfruit waste, verticulture


2016 ◽  
Vol 47 (3) ◽  
Author(s):  
Al-Karam & Al-Biaty

A Field experiment was conducted using Factorial within Randomized Complete Block Design during 2014 and 2015 on the wolly peach seedlings cv Red June, which grafted on the seeded apricot, at the Dept. of Horticulture – Coll. Of Agric. – Univ. of Baghdad. The objective of this experiment was to study the effect of foliar application on organic fertilizer and growth promoter biozyme on growth of wolly peach. The tveatments were organic Fertilizer (Botryfun) (F) with 0, 3, 4 , 5 ( Ml.ltr -1) and biozyme (G) 0 , 2 , 4 ( Ml.ltr -1). The results revealed that the plants foliared by organic fertilizer F4 produced significantly highest values for all the studied traits. Plant hight iricveased 17.6, 35.5 cm, new branches lenyht 56.0, 14.4 cm. no. of vegetative branches 11.5, 29.2, diameter of main stem increased 0.85, 1.13cm, single leaf area 42.0, 39.8 cm2 , no of leaves 517.3, 771.7, leaves dry matter % , 36.8, 41.6, for two years respectively. The biozyme G2 increased plant height 15.8 and 35.6 cm, new vegetative branches 53.9, 62.8 cm, new vegetative branches 10.1, 31.6, stem diameter 0.78, 1.14 cm, single leaf area 37.3, 41.0 cm2 , no. of leaves 431.9, 825.0, leaves dry matter % 37.2, 41.3, for two years, respectively.


2022 ◽  
Vol 10 (1) ◽  
pp. 16-25
Author(s):  
P. I. Udounang ◽  
O. J Ekwere ◽  
F. E. Akpainyang

Field experiment was conducted at University of Uyo Teaching, research farm during the 2018 and 2019 cropping seasons to assess the effect of fertilization on cocoyam-based intercropping systems. The experiment was laid out in a randomized complete block design with three replications. Treatments were six fertilizers rates - 0kg/ha, NPK200kg/ha, NPK400kg/ha, PM2.5t/ha, PM5.0t/ha, Mixture (NPK200kg/ha + PM2.5t/ha) and six crop mixtures - Sole Cocoyam, Sole Melon, Sole Maize, Cocoyam + Maize, Cocoyam + Melon and Cocoyam + Melon + Maize). Result analysed with analysis of variance revealed PM2.5t/ha, NPK400kg/ha and Mixture (NPK200kg/ha + PM2.5t/ha) gave higher plant height, leaf area, stem girth in sole cocoyam, maize and melon respectively. PM2.5t/ha favoured leaf area, stem girths of cocoyam, maize with cocoyam + maize, cocoyam + melon and cocoyam + melon + maize crop mixtures. PM5.0t/ha gave higher values of corm, cormels, cormels weight, cormels number and cormels length in both sole cocoyam and mixtures (cocoyam + melon, cocoyam + maize, cocoyam + melon + maize) in both seasons respectively. PM2.5t/ha gave higher values of maize grain yield with cocoyam + maize, cocoyam + melon + maize crop mixtures. PM5.0t/ha and NPK400kg/ha gave higher melon seed values with cocoyam + melon and cocoyam + Melon + maize. Conclusively, it is recommended that application of organic fertilizer promotes higher yields and yield components in both sole and crop mixtures of cocoyam and maize respectively.


2021 ◽  
pp. 55-66
Author(s):  
Mulyati Mulyati ◽  
Baharuddin AB ◽  
R Sri Tejo Wulan

The use of inorganic fertilizers has an important role in increasing plant growth and production. But it also causes various problems such as decreasing soil organic matter, soil acidity, soil degradation, nutrient imbalance and increasing environmental pollution. Therefore, it needs to be balanced with the provision of organic fertilizers. A field experiment was conducted to study the effect of application of various doses of inorganic and organic fertilizers on N, P, K nutrient uptake and maize plant growth. The experimental design used was a randomized block design arranged in a factorial manner consisting of two factors. The first factor is the dose of inorganic fertilizer (A): 0, 150 and 300 kg ha-1 phonska and the second factor is organic fertilizer plus (P): 0, 10, 20 tons ha-1. The two factors were combined and each treatment combination was repeated three times. The data obtained were analyzed by analysis of variance at the 5% level of significance. The results showed that there was no interaction between the application of inorganic and organic fertilizers on the growth and nutrient uptake of N, P and K. However, the application of inorganic and organic fertilizers had a significant effect on all tested agronomic traits except for plant height. Nutrient uptake of N, P and K also increased significantly due to the application of inorganic and organic fertilizers. The balance of inorganic and organic fertilizer application increases the availability of nutrients as well as the uptake of N, P, and K nutrients by maize plants.


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