scholarly journals Hubungan Bobot Isi dan Kemantapan Agregat Tanah dengan Biomassa Tanaman Jagung Manis dan Cabai Merah setelah diberikan Kombinasi Terak Baja dan Bokashi Sekam Padi pada Andisol, Lembang

Agrikultura ◽  
2019 ◽  
Vol 30 (1) ◽  
pp. 1
Author(s):  
Henly Yulina ◽  
Rina Devnita ◽  
Rachmat Heryanto

ABSTRACTRelationship between bulk density and soil agaregate stability on biomass of sweet corn and red chili after given combination steel slag and bokashi of husk on Andisol LembangThe objective of this research was to find out relationship between bulk density and soil agaregate stability on biomass of sweet corn and red chili after given combination steel slag and bokashi of husk on Andisol Lembang.This study used a Randomized Block Design Factorial with two factors. The first factor was steel slag and the second factor was bokashi of husk. Each of them consisted of 4 levels of 0%, 2.5%, 5.0% and 7.5% with two replications. The result of this research showed there was relationship between bulk density and soil agaregate stability on biomass of sweet corn and red chili, however only the biomass of red chili was influenced of bulk density and soil agaregate stability.Keywords: Steel slag, Bokashi of husk, Bulk density, Soil agaregate stability, Plant biomassABSTRAKPenelitian ini bertujuan untuk mengetahui hubungan antara bobot isi dan kemantapan agregattanah terhadap biomassa tanaman jagung manis dan cabai merah setelah diberikan kombinasi terakbaja dengan bokashi sekam padi pada Andisol Lembang. Penelitian menggunakan Rancangan AcakKelompok Pola Faktorial dengan dua faktor. Faktor pertama terak baja dan faktor kedua bokashisekam padi masing-masing 4 taraf yaitu 0%, 2,5%, 5,0%, dan 7,5%, diulang dua kali. Hasil penelitian menunjukkan bahwa terdapat hubungan antara bobot isi dan kemantapan agreagat tanahdengan biomassa tanaman jagung manis dan cabai merah, namun hanya biomassa tanaman cabaimerah yang dipengaruhi oleh bobot isi dan kemantapan agregat tanah.Kata Kunci: Terak baja, Bokashi sekam padi, Bobot isi, Kemantapan agregat, Biomassa tanaman

Agrikultura ◽  
2018 ◽  
Vol 29 (2) ◽  
pp. 66
Author(s):  
Henly Yulina ◽  
Rachmat Harryanto ◽  
Rina Devnita

ABSTRACTResponse of water available and soil bulk density on sweet corn and broccoli of steel slag and husk bokashi combination on Andisol LembangThe objective of this research was to find out responses of water available and soil bulk density on sweet corn and broccoli of steel slag and husk bokashi combination on Andisol Lembang. This study used a randomized block design factorial with two factors. The first factor was steel slag and the second factor was husk bokashi. Each factor onsisted of 4 levels of 0%, 2.5%, 5.0% and 7.5% with two replications. The result showed there was not interaction between steel slag and husk bokashi on water available and soil bulk density on sweet corn and broccoli. Bokashi of husk has an independent effect to water available on sweet corn while bokashi of husk has an independent effect to soil bulk density on sweet corn and broccoli.Keywords: Steel slag, Bokashi of husk, Soil physical characteristic, Sweet corn, BroccoliABSTRAKAndisol mempunyai sifat fisika tanah yang baik, namun bermasalah dengan retensi P. Pemberian amelioran untuk mengurangi retensi P, diharapkan dapat mempertahankan bahkan meningkatkan parameter fisika tanah tersebut. Penelitian bertujuan untuk mengetahui respon air tersedia dan bobot isi tanah pada tanaman jagnung manis dan brokoli terhadap kombinasi terak baja dengan bokashi sekam padi pada Andisol Lembang. Penelitian menggunakan Rancangan Acak Kelompok Pola Faktorial dengan dua faktor. Faktor pertama terak baja dan faktor kedua bokashi sekam padi masing- masing 4 taraf yaitu 0%, 2,5%, 5,0%, dan 7,5%, diulang dua kali. Hasil penelitian menunjukkan bahwa tidak terjadi interaksi antara terak baja dengan bokashi sekam padi terhadap air tersedia dan bobot isi pada tanaman jagung manis dan brokoli. Bokashi sekam padi berpengaruh mandiri terhadap air tersedia pada jagung manis, sedangkan bokashi sekam padi berpengaruh mandiri terhadap bobot isi tanah pada jagung manis dan brokoli.Kata Kunci: Terak baja, Bokashi sekam padi, Ketersediaan air, Bobot isi, Jagung manis, Brokoli


EUGENIA ◽  
2019 ◽  
Vol 25 (2) ◽  
Author(s):  
A. G. Tulungen ◽  
P. Tumewu ◽  
M. Montolalu ◽  
John L. Rantung ◽  
S. Tulung

The use of organic fertilizer provides soil with macronutrients, micronutrients, and organic acids which improve the long-term physical, chemical, and biological fertility of the soil. This research aims to: 1) Increase physical and chemical soil fertility, 2) Acquire the interaction between organic fertilizer and Ponska fertilizer dosage on sweet corn crops, 3) Acquire the most efficient dosage of PONSKA  fertilizer on sweet corn, and 4) disseminate research results through journal articles and directly to farmers.  This research will increase the efficiency of NPK Ponska chemical fertilizers by utilizing waste from around the farm and lakes to formulate organic fertilizer to apply on sweet corn crops and as a reference to teaching material. Factorial research with two factors was designed using a randomized block design. Factor I (A) = Organic fertilizer formulation, comprising of A1 = 20 ton/ha, A2 = 30 ton/ha, and A3 = 40 ton/ha.  Factor II (B) =  Phonska fertilizer,  comprising of B1 = 25 % Ponska, and B2 = 50% Ponska. Every treatment was replicated four times, yielding 24 research plots. Response variables observed were: Plant height, number of leaves, dry weight of the plant. Data were analyzed using ANOVA, followed by Tukey's honest significance difference test (alpha = 0.05) if significant differences were found. Results showed that the interaction between organic and Phonska fertilizer formulations had significant effects on plant height. A dosage of 40 ton/ha of organic fertilizer can decrease the use of phonska fertilizer by 75% based on the height of sweet corn plants.


2018 ◽  
Vol 7 (4.15) ◽  
pp. 427
Author(s):  
Sri Hidayati ◽  
Mahrus Ali ◽  
Sri Purwanti ◽  
Nurul Huda ◽  
Nurlina .

The aim of research is to test the combination of organic fertilizer and NPK fertilizer, test organic fertilizer, test NPK fertilizer that is suitable for the growth and yield of sweet corn. This research method using Randomized Block Design (RAK) arranged factorial consists of two factors, namely Organic Fertilizer (cage) with 3 levels of treatment (K) and NPK Fertilizer with 3 levels of treatment (M). Each treatment was repeated 3 times and each treatment combination consisted of two sample plants. The results of this study showed that the overall treatment of the combination of organic fertilizer and NPK fertilizer on the growth and yield of sweet corn plants did not show a real effect. Separately the treatment of organic fertilizer gave a very real effect on all observation variables, the average organic fertilizer as much as 17.5 tons / ha or 1.5 kg / tan (K3) gave the highest growth and yield of sweet corn compared to other treatment, Separately the treatment of NPK fertilizer gave a very real influence on all observation variables, the average NPK fertilizer with a composition of 450 kg Urea + 150 kg TSP + 75 kg KCl) / Ha or 9 g + 3 g + 1.5 g / tan (M3) gives the highest growth and yield of sweet corn compared to other treatments. Person. 


2020 ◽  
Vol 7 (02) ◽  
pp. 51-58
Author(s):  
Faizal Shofwan Kusnendi ◽  
Supijatno Supijatno ◽  
Ade Wachjar ◽  
Yayat Hidayat ◽  
Sugeng Heri Suseno

Agroforestry-based coffee is one of the conservation efforts to restore the damages at the Citarum watershed. Planting annual crops between coffee rows could potentially contribute income for the growers during the immature non-productive coffee growth. The aims of the research is to study the effect of various types of agroforestry models in the upstream Citarum watershed on the growth of coffee, and growth and yields of the intercrops. The research was conducted in September 2018 to June 2019 at the upstream Citarum watershed of Tarumajaya Subdistrict Kertasari, Bandung Regency, West Java, Indonesia. The research was arranged with a randomized block design with two factors. The first factor was the cropping system, i.e. coffee monoculture, coffee and corn, coffee and sweet corn, coffee and red beans, and coffee and habanero chili. The second factor was organic matter application, i.e. with and without application of in situ organic matter. The results of the research showed that coffee intercropped with habanero with application of in situ organic matter had the best vegetative growth, indicated by taller plants, more leaves, increased leaf P and Mg levels, and the maximum income from the intercrop. Coffee intercropped with corn with application of in situ organic matter had a maximum corn production but had the lowest income. Therefore, the model of coffee intercropped with habanero chili with application of in situ organic matter was the best model from several intercropping systems tested.


Agrikultura ◽  
2015 ◽  
Vol 26 (2) ◽  
Author(s):  
Henly Yulina ◽  
Rina Devnita ◽  
Rachmat Harryanto

ABSTRACTAndisol soil has very good soil physical characteristic, however it has problem with the Pretention. Giving ameliorant to reduce the P retention is expected to maintain, moreover toimprove some soil physical characteristics. The objective of this research was to find out theinteraction between steel slag and bokashi of husk to bulk density, aggregate stability, soil porosityand biomass of broccoli on Andisol Lembang. This study used a randomized block design factorialwith two factors. The first factor was steel slag and the second factor was bokashi of husk. Each ofthem consisted of 4 levels: 0%, 2.5%, 5.0% and 7.5% with two replications. The result of thisresearch showed there was not interaction between steel slag and bokashi of husk to soil bulkdensity, soil aggregate stability, soil porosity and biomass of broccoli. The statistical results showedthat bokashi of husk influence independently to decreasing soil bulk density until 0.53 g cm-3,decreasing soil aggregate stability until 3.25 and increasing soil porosity until 80.22%, but theprovision of steel slag and bokashi of husk didn‟t influence to biomass of broccoli.Keywords : organik matter, silicate, bulk density, agreggate stability, broccoliABSTRAKAndisol mempunyai sifat fisika tanah yang baik, namun bermasalah dengan retensi P. Pemberianamelioran untuk mengurangi retensi P, diharapkan dapat mempertahankan, bahkan meningkatkanbeberapa parameter fisika tanah tersebut. Penelitian bertujuan untuk mengetahui interaksi terakbaja dengan bokashi sekam padi terhadap bobot isi, kemantapan agregat, porositas tanah danbiomassa tanaman brokoli pada Andisol Lembang. Penelitian menggunakan Rancangan AcakKelompok Pola Faktorial dengan dua faktor. Faktor pertama terak baja dan faktor kedua bokashisekam padi masing-masing 4 taraf: 0%, 2,5%, 5,0% dan 7,5%, diulang dua kali. Hasil penelitianmenunjukkan bahwa tidak terjadi interaksi antara terak baja dengan bokashi sekam padi terhadapbobot isi, kemantapan agregat, porositas tanah dan biomassa tanaman brokoli. Hasil statistikmenunjukkan bahwa bokashi sekam padi berpengaruh mandiri untuk menurunkan bobot isi tanahsampai 0.53 g cm-3, menurunkan kemantapan agregat tanah sampai 3,25 dan meningkatkanporositas tanah sampai 80,22%, namun pemberian terak baja dan bokashi sekam padi tidakberpengaruh terhadap biomassa tanaman brokoli.Kata kunci : bahan organik, silikat, bobot isi, kemantapan agregat, brokoli


2020 ◽  
Vol 1 (2) ◽  
pp. 39-45
Author(s):  
Sri Handayani Cut Mulia Sari

This study aims to determine the response of growth and production of sweet corn plants due to the provision of bokashi and coconut water ZPT and the presence or absence of interaction between the two factors tested. This research was conducted in experimental garden of Faculty of Agriculture of Jabal Ghafur University Sigli from June 03 until August 08, 2017. This research using Randomized Block Design (RAK) of factorial pattern consists of two factors, namely bokashi and ZPT Coconut Water. Each treatment was repeated 3 times, so there were 9 treatment combinations and 27 experimental units. The Bokashi (B) factor consists of: 3.6 kg per plot (B1), 6 kg per plot (B2), 8.4 kg per plot) (B3) and Coconut Water ZPT factor (A) consists of: 500ml / liter water per plot (A1), 1000ml / liter of water per plot (A2) and 1500 ml / liter of water per plot (V3). The results showed that, Bokashi and ZPT Coconut Water had no significant effect on all parameters observed and no interaction between them. Keywords: Bokashi, ZPT Coconut Water and Sweet Corn


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).


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.


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 8 (2) ◽  
pp. 337-346
Author(s):  
Karina De Vares Rossetti ◽  
José Frederico Centurion

This work aimed, to evaluate the structural behavior of Oxisols based on the least limiting water range (LLWR) and establish relations with corn crop. The experiment was carried out in a randomized block design with five treatments and four replications. Soil samples collected at the layer of 0-0.20 m depth in a Haplustox (LVd) and an Eutrustox (LVef) were used. The compaction treatments consisted of T0= no additional compaction; T1 and T2= two and four passes with a 4 t tractor, respectively; T3 and T4 = two and four passes with a 10 t tractor, respectively. The range of LLWR variation in the LVd was the lowest one and varied from 0.01 to 0.04 m3 m-3, whereas in the LVef varied from 0.03 to 0.13 m3 m-3 for the critical soil penetration resistance (PRc) of 2 MPa. It was observed that critical bulk density (BDc) values were 1.76 and 1.40 Mg m-3 in the LVd and the LVef, respectively. The highest frequency of bulk density (BC ≥ BDc) occurred from the T1 to T4 (LVd) and from the T2 to T4, however, a reduction in corn yield was not observed. The determination of the LLWR was efficient and complementary for identifying more favorable or more impeditive conditions to compaction in the LVef for the corn crop development in relation to the LVd.


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