scholarly journals Pertumbuhan Tanaman Kacang Tanah (Arachis hypogea L. Merril) Setelah Aplikasi Azotobacter chroococcum Dan Pupuk NPK

Agrologia ◽  
2018 ◽  
Vol 7 (1) ◽  
Author(s):  
Dewikusuma Ikhsani ◽  
Reginawanti Hindersah ◽  
Diyan Herdiyantoro

The combination of biological fertilizers and chemical fertilizers can support the concept of sustainable integrated farming and minimize the adverse impacts of chemical fertilizers. Azotobacter sp. is a soil microbe that used as a biological fertilizer because it can fix N and produce phytohormones which are crucial for plant growth. This research aims to study the growth of peanut plants after Azotobacter chroococcum and NPK fertilizer application. This research was conducted on July-November 2016 in field trials of PT. Pupuk Kujang, Cikampek, West Java with a height of 25 m above sea level. The experiments were performed using a randomized block design with three treatments, 2 L / ha Azotobacter chroococcum, 300 kg / ha of NPK and 2 L / ha Azotobacter chroococcum + 150 kg / ha of NPK with four replications. The results showed treatment with a dose of 2 L / ha Azotobacter chroococcum + 150 kg / ha of NPK fertilizer can increase the growth of plant height and root dry weight, whereas treatment with a dose of 300 kg / ha of NPK most improve plant shoot dry weight. Keywords: Azotobacter chroococcum, NPK, Plant Growth. 

2018 ◽  
Vol 46 (2) ◽  
pp. 153 ◽  
Author(s):  
Sugiyanta , ◽  
I Made Dharmika ◽  
Dan Dedeh Siti Mulyani

ABSTRACT<br />    <br />As one of the silica (Si) accumulator, rice (Oryza sativa L.) requires large amounts of silica for growth. This study aimed to determine the effect of liquid silica fertilizer application on lowland rice growth and yield, and its roles in drought stress responses. The experiments were conducted at Sawah Baru rice field and Cikabayan Greenhouse Experiment Station, IPB, Bogor during the period of January to May 2016. The field experiment was set up in a randomized complete block design with 7 treatments and three replications. The greenhouses experiment was arranged in a split-plot randomized block design with 3 replications. The main plots were 5 levels of liquid silica fertilizer application, while the subplot was 5 level of various soil water contents. The results of the field experiment showed that the application of liquid silica fertilizer increased rice shoot dry weight, total and productive tiller numbers, and yield per plant, but did not increase yield per hectare. Meanwhile at greenhouse experiment, it showed that the use of liquid silica fertilizer reduced the number of rice stomata, but did not increase cuticle thickness and grain yield per plant. Silica application was not effective to alter drought in rice.<br /><br />Keywords: IPB 3S, silica fertilizer, soil water content, water use efficiency   <br /><br />


HortScience ◽  
1991 ◽  
Vol 26 (6) ◽  
pp. 709B-709 ◽  
Author(s):  
Ray A. Watson ◽  
Katrine A. Stewart ◽  
Valentin Furlan

The effects of two mycorrhizal species (Glomus versiforme and Glomus intraradix) and a control on the growth of green pepper, Capsicum annuum, and lettuce, Lactuca sativa, seedlings have been evaluated using four types of growing media (Peatwool, Fafard bulk mix. Cornell mix and a compost based mix) and two types of containers, Cell Packs (125 cc volume) and Pro-Trays (65 cc volume) for green pepper and Cell Packs (125 cc volume) and Plug Flats (33 cc volume) for lettuce. The experiments were split plot randomized Complete block design with 6 blocks (lettuce) and 4 blocks (pepper). Seeds were sown directly into the containers of mycorrhizal inoculated media. All treatments received the same fertilizer regime. Cell volume had no significant effects on green pepper fresh weight, dry weight, stem diameter, leaf area or leaf number but the lettuce Cell Pack plants had significantly higher fresh and dry weights, more leaves and higher leaf area. The Fafard Bulk and the Compost mix gave significantly higher fresh and dry weights than did the other two media for both green pepper and lettuce. Mycorrhizal species did not influence plant growth with the exception of leaf area in green peppers and shoot dry weight in lettuce.


HortScience ◽  
2011 ◽  
Vol 46 (5) ◽  
pp. 799-807 ◽  
Author(s):  
Gladis M. Zinati ◽  
John Dighton ◽  
Arend-Jan Both

We tested the effects of using an inoculum containing natural ericoid roots and soil (NERS) with two fertilizer and irrigation rates on plant growth, shoot (stems and leaves) nutrient concentration, leachate quality, and mycorrhizal colonization of container-grown Coast Leucothoe [Leucothoe axillaris (Lam.) D. Don] and Japanese Pieris [Pieris japonica (Thunb.) D. Don ex G. Don]. Uniform rooted liners were grown in 10.8-L containers in a pine bark, peatmoss, and sand (8:1:1 by volume) substrate medium in a randomized complete block design with four replications. A controlled-release fertilizer, Polyon® Plus 14-16-8 (14N–7P–6.6K), was incorporated in the substrate medium at the 100% manufacturer's recommended fertilizer rate [representing high fertilizer rate (HF)] (56 g per container) to supply 7.84 g nitrogen (N) and at 50% the manufacturer's recommended rate [representing low fertilizer rate (LF)]. Plants were irrigated using a cyclic drip irrigation system at high (HI) and low (LI) irrigation rates calibrated to supply 25.2 L of water and 16.8 L per week, respectively. On average, NERS inoculation increased shoot growth of Leucothoe and Pieris by 56% and 60%, respectively. Shoots of Leucothoe inoculated with NERS had higher N, phosphorus (P), magnesium (Mg), and manganese (Mn) concentrations than non-inoculated plants. At LF, nitrous-N (NOx-N) and orthophosphorus (PO4-P) concentrations in the leachate were reduced by 53% from Leucothoe and 62% from Pieris compared with HF-treated plants. A reduction of 37% and 36% in PO4-P concentration in leachates from Leucothoe and Pieris, respectively, were achieved at the reduced irrigation (LI) rate. The NERS inoculation reduced PO4-P concentrations in leachate from Leucothoe by 26% and NOx-N concentration by 33% in leachates from Pieris compared with non-inoculated plants. Compared with plants grown in the HI–HF treatment, the combination of LI–LF treatment reduced NOx-N concentrations in leachates from Leucothoe by 60% (P = 0.016) and reduced PO4-P leachate concentrations from Pieris by 72% (P = 0.0096). Decreasing the fertilizer rate to 50% of the recommended rate and the irrigation rate to 67% of the recommended rate in conjunction with the incorporation of NERS reduced leachate nutrient concentrations of two main water pollutants (NOx-N and PO4-P). Adopting the practice of adding NERS containing fungi and bacteria can be an effective system to increase shoot dry weight, allow reduction in fertilizer application, conserve water for irrigation, and minimize subsequent nutrient runoff in nursery operations.


2020 ◽  
Vol 8 (4) ◽  
pp. 121
Author(s):  
USMAN DARAS

<p>Penelitian ini dilakukan untuk mengetahui pengaruh dosis dan komposisi pupuk NPK terhadap petumbuhan tanaman jambu mente muda (TBM) yang ditanam pada tanah regosol coklal keabu-abuan di Desa Anyar - Bayan (Lombok Barat) dari tahun 1997 sampai 2000. Perlakuan pupuk yang diuji adalah: (1) Taraf pemberian pupuk: 0, 150, 300, 450, 600 dan 750 g NPK/pohon/tahun; dan (2) Komposisi pupuk NPK (2:1:1, 1:1:1, dan 1:1:2). Perlakuan pupuk disusun dalam rancangan acak kelompok dengan 2 ulangan dan ukuran petak 4 pohon. Hasil penelitian menunjukkan tidak ada pengaruh intcraksi nyata antara perlakuan dosis dan komposisi pupuk NPK terhadap petumbuhan tanaman jambu mente muda. Sedangkan faktor tunggalnya, dosis maupun komposisi pupuk, berpengaruh nyata terhadap petumbuhan tanaman. Dosis pupuk yang memadai untuk mendukung petumbuhan tanaman secara normal menurut stadia (umur) adalah 100, 200, 400 dan 600 g NPK (dalam N, P20, dan KjO) per pohon per tahun, masing-masing unluk 1, 2, 3 dan 4 tahun. Sedangkan komposisi pupuk NPK yang dianjurkan adalah NPK 1:1:2 untuk tanaman umur 1 -2 tahun, dan NPK 2:1:1 tanaman umur 3 - 4 tahun.</p><p>Kata kunci: Anacardium occidentale, jambu mente, pupuk</p><p> </p><p><strong>ABSTRACT </strong></p><p><strong>Effect of fertilizer application on the growth of young cashew plants in Bayan, Lombok</strong></p><p>This study was conducted on young cashew trees grown in grayish- brown regosol soil located in Anyar Bayan (West Lombok) rom 1997 to 2000. The objective of this study was to find out the effect of NPK fertilizer and its composition on Uie growlh of me crops. The treatments were: (1) fetilizer rates (0, 150, 300, 450, 600 and 750 g NPK /tree/year); and (2) composition of NPK (2:1:1, 1:1:1 and 1:1:2). The treatments were arranged in randomized block design with 2 replicates, 4 plants per plot. Results showed that there was no significant interaction between fertilizer rate and its composition on the growth of the plants. Individually, however, both fertilizer rate and NPK composition significantly affected growlh of young cashew trees. Adequate rates of fertilizer application were 100, 200, 400 and 600 g NPK (in N, P2Oj dan KjO) per tree per year for 1, 2, 3 and 4 years old, respectively. Whereas, fetilizer compositions of NPK 1:1:2 and NPK 2:1:1 were suitable for young trees of 1-2 and 3-4 years old, respectively.</p><p>Keywords: Anacardium occidentale. cashew, fertilizer, application, plant growth, Lombok</p>


Author(s):  
Oryza Affandina Sani ◽  
Hanny Hidayati Nafi’ah ◽  
Novriza Satia

Manure is a fertilizer that is widely used in organic agriculture. The purpose of this study was to determine whether there was a best combination of manure used and weeding frequency on plant growth  and  yields.  The  research  was  done  in Cimaragas, CilawuDistrict, GarutRegency  from August to September 2020. The research used an experimental method with factorial randomized block  design  (FRBD)  consisted  of 2treatment  factors  with 3replications,  namely:  First treatment  (Types  of  Manure)  consisted  of  goat  manure (k1),cow  manure (k2),chicken  manure (k3),and  NPK  fertilizer (k0)as  control.  Second  treatment  (Weeding  frequency)  consisted  of without  weeding (p0),2times  of  weeding (p1),and4times  of  weeding (p2).The  results  showed that  there  was  an  interaction  on  the  observation  parameters  of  dry  weight  and  leaf  area  of  the plant. The combination that gives the best influence was cow manure with 2times of weeding.Keyword: lettuce, manure, weeding


2018 ◽  
Vol 6 (9) ◽  
pp. 385-394
Author(s):  
Babajide P.A. ◽  
Akinrinola T. B. ◽  
Oyeyiola Y.B. ◽  
Okoro-Robinson M.O. ◽  
Salami T.B. ◽  
...  

Under intensive cropping systems in the tropics, application of chemical fertilizers becomes an apparently indispensable means of replenishing the rapidly depleting soil nutrients. However, the reported side effects of continuous application of synthetic fertilizers on soil and man are now a major concern. Hence, determination of the potentials of some easily exploitable natural or organic-based fertilizer material(s), which can effectively compete with the commonly used synthetic fertilizers like NPK 15-15-15, is a worthwhile scientific approach, not towards improved performance of versatile arable crop like maize, but also for total eradication or alleviation of chemical inputs on tropical soils. A field experiment was conducted at the Teaching and Research Farms, Ladoke Akintola University of Technology (LAUTECH), Ogbomoso, in the year 2017, to comparatively determine the effects of NPK fertilizer and some selected organic-based fertilizer / ammendments on growth, yield and nutrient uptakes of maize (Zea mays). Six treatments were introduced, T0 (the control which received no fertilizer application), T1 (NPK fertilizer application), T2 (Tithonia compost application), T3 (Organomineral fertilizer application), T4 (Poultry manure application) and T5 (Cow dung application). All fertilizers were applied at recommended rates. The experiment was laid out in Randomized Complete Block Design (RCBD), replicated thrice. Data were collected on growth and yield parameters, and were subjected to analysis of variance. Means were separated using Duncan multiple range test. Application of different fertilizer materials significantly improved maize performance and nutrient uptakes, compared to the control. Organomineral fertilizer application produced the highest values of most of the growth and yield parameters measured. Although, the values obtained were mostly not significantly different from other fertilizer materials tested (except for cow dung, which was in some cases, significantly lower in values than other fertilizers tested, but significantly higher than the control (which steadily had the least values of all the parameters measured). Such significant increments may be due to the cherished attributes of organomineral fertilizer (some its nutritious fractions may be rapidly released while remaining fractions may be slowly released, over a long period of time). Hence, application of organomineral is therefore recommended. This will considerably reduce chemical loads on the soil in the study area. Meanwhile, in order to be purely organic in maize production, either composted tithonia or poultry manure is recommended for the study area. This will not only prevent total dependence on harmful and highly priced chemical fertilizers, but may promote improved soil nutrition and hygienic crop productivity.


2016 ◽  
Vol 43 (3) ◽  
pp. 193 ◽  
Author(s):  
Sri Ayu Dwi Ayu Dwi Lestari ◽  
Maya Melati ◽  
Heni Purnamawati

<p>ABSTRACT</p><p>Bambara groundnut is considered tolerant to drought and unfertile soil; therefore, has higher potential to be cultivated. The average yield of dry pod weight from agricultural fields in Indonesia is still low (&lt; 4 ton ha-1); hence, the cultivation technique must be improved. Fertilizer is the main input to increase yield of Bambara groundnut, but the optimum rates of N, P, and K have not been determined. Therefore, the objectives of the research were to determine the optimum rate of N, P, and K fertilizer for Bambara groundnut production. Three parallel experiments were conducted at Cikarawang Experimental State, Dramaga, Bogor from March to July 2013. Each experiment tested different rates of N or P or K fertilizer with compeletely randomized block design and three replications. The fertilizer rates were 0, 50, 100, 150, and 200% of recommendation rate (100% N = 100 kg Urea ha-1, 100% P = 150 kg SP-36 ha-1, 100% K = 75 kg KCl ha-1). The results showed that leaf P content increased linearly with N fertilizer application. Leaf N content linearly decreased with P fertilizer application. Leaf P content and shoot dry weight quadratically increased with K fertilizer application. The optimum rates of N and P fertilizer was unable to be determined due to insignificant response of several variables. Optimum rate of K fertilizer ranged 86.4-118.95 kg KCl ha-1.</p><p>Keywords: leaf nutrients, multi nutrient response, recommendation rate</p>


2020 ◽  
Vol 4 (2) ◽  
pp. 119-127
Author(s):  
Mardiana Wahyuni ◽  
Agus Triani ◽  
Mariani Sembiring

Through the nursery process with certain treatments can be produced quality seeds. Application of Mucuna bracteata compost and Azotobacter on growing media in polybags is one alternative that expected to increase plant growth. This study aimed to determine the effect of M. bracteata compost and Azotobacter and its combination on growth and nitrogen levels of oil palm seedlings. This research was conducted at STIPAP Medan in December 2018 - June 2019 with a Factorial Randomized Block Design (RBD). Treatment compost (K) 3 levels ie K0, K1 and K2 and Azotobacter (A) with 3 levels are A0, A1 and A2. M. bracteata treatment had a very significant effect on seedling height, number of leaves, shoot dry weight and root dry weight. Azotobacter treatment did not significantly affect the parameters of observation, increasing levels of leaf N 13-15%. Interaction compost and Azotobacter treatment had no significant effect. The best treatment is the K2A2 of 1.2 kg of compost and 30 ml of Azotobacter each oil palm seedlings planted in the polybag.


2018 ◽  
Vol 6 (2) ◽  
pp. 60
Author(s):  
Teguh Martono ◽  
Purwati Purwati ◽  
Iin Arsensi

The Influence of NPK Phoska Fertilizer and Liquid Organic Fertilizer on Banana Plant Growth and Production (Musa sp). The purpose of this study was to determine the effect of NPK Phoska fertilizer and liquid organic fertilizer on the growth and production of banana rutai plant. The study was conducted for 7 (seven) months, from February to September 2015, starting from land preparation to data collection. This research was conducted on campus of Widya Gama Mahakam Samarinda. The research design used was factorial randomized block design 3 x 3 with 3 times replication. The first factor was Phoska NPK fertilizer (P) consisting of 3 levels: P0 (Without Treatment), P1 (1080 g / plant) and P2 (1580 g / plant). The second factor is the application of liquid organic fertilizer (B) 3 levels, namely: B0 (Without treatment), B1 (5000 ml) and B2 (10000 ml). The result of the research showed that the best treatment of NPK Phoska P2 (1580 g / plant) was the average of plant height 90 days after the highest treatment was 122.33 cm, the largest mean stem diameter was 11,08 cm and average the highest number of comb per bunches is 7.22 comb, the fastest harvest age is 248 days after planting. The best treatment of liquid organic fertilizer to the average number of combs per cluster was achieved at the treatment of B1 (5000 ml) ie 5.33 comb, the fastest harvest age 248 days after planting. The interaction between NPK Phoska fertilizer application and liquid organic fertilizer did not significantly affect all observation parameters.


2019 ◽  
pp. 61-67

Recognition of high yielding and nitrogen (N) fixing groundnut genotypes and desegregating them in the cereal-based cropping systems common in savannah regions will enhance food security and reduce the need for high N fertilizers hence, minimize the high cost and associated environmental consequences. Field trials were conducted during the 2015 growing season at the Research Farms of Bayero University Kano (BUK) and Institute for Agricultural Research (IAR), Ahmadu Bello University, Samaru-Zaria to assess the yield potential and Biolog- ical N fixation in 15 groundnut genotypes (ICG 4729, ICGV-IS 07823, ICGV-IS 07893, ICGV-IS 07908, ICGV- SM 07539, ICGV- SM 07599, ICGV-IS 09926, ICGV-IS 09932, ICGV-IS 09992, ICGV-IS 09994, SAMNUT-21, SAMNUT-22, SAMNUT-25, KAMPALA and KWANKWAS). The groundnut genotypes and reference Maize crop (SAMMAZ 29) were planted in a randomized complete block design in three replications. N difference method was used to estimate the amount of N fixed. The parameters determined were the number of nodules, nod- ule dry weight, shoot and root dry weights, pod, and haulm yield as well as N fixation. The nodule dry weight, BNF, haulm, and pod yield were statistically significant (P<0.01) concerning genotype and location. Similarly, their interac- tion effect was also highly significant. ICGV-IS 09926 recorded the highest nod- ule dry weight of 2.07mg /plant across the locations while ICGV-IS 09932 had the highest BNF value of 140.27Kg/ha. Additionally, KAMPALA had the high- est haulm yield, while ICGV-IS 07893 had the highest pod yield across the loca- tions with a significant interaction effect. The result shows that ICGV-IS 07893 and ICGV-IS 09932, as well as ICGV-IS 09994 and SAMNUT – 22, were the best genotypes concerning BNF, haulm and pod yield in the Northern Guinea and Sudan Savannahs of Nigeria respectively with the potential for a corresponding beneficial effect.


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