scholarly journals Pengelolaan dan Pemupukan Fosfor dan Kalium pada Pertanian Intensif Bawang Merah di Empat Desa di Brebes

2018 ◽  
Vol 9 (1) ◽  
pp. 27-37
Author(s):  
Muliana , ◽  
Syaiful Anwar ◽  
Arief Hartono ◽  
Anas D. Susila ◽  
Supiandi Sabiham
Keyword(s):  
Nutrient Availability ◽  
Rainy Season ◽  
Smallholder Farmers ◽  
Nutrient Status ◽  
Soil Samples ◽  
Survey Method ◽  
Nutrient Accumulation ◽  
Soil P ◽  
Soil K Status ◽  
Very High

ABSTRACTThe management and fertilization of shallot cultivation in Brebes is very intensive. The purpose of this research was to study crop management and phosphorus (P) and potassium (K) fertilizations of shallot cultivation by smallholder farmers in four villages in Brebes. The data were collected through survey method, interview, and questionnaires to 14 respondent farmers, and analysis of P and K content of farmer's soil samples. The results showed that the cropping index (IP) was 400-500% comprised of three to four times of shallot cultivation and one rice cultivation. The fertilizations of P and K were 22-171 kg of P2O5 ha-1 and 22-213 kg K2O ha-1, respectively, while the recommended rates were 54 kg P2O5 ha-1 and 78 kg K2O ha-1, respectively. This varied fertilizations were not significantly correlated with productions, except fertilization of K with production in rainy season that was significantly correlated at P < 0.05 (n = 14, r = 0.532). The soil P status was very high at all locations and at all depths (0 - 80 cm), while the soil K status ranged from medium to very high. Keywords: nutrient accumulation, nutrient availability, nutrient residue, nutrient status, smallholder farmersABSTRAKPengelolaan dan pemupukan pada budidaya bawang merah di Brebes sangat intensif. Tujuan penelitian ini ialah mengkaji pengelolaan pertanaman dan pemupukan fosfor (P) dan kalium (K) bawang merah yang dilakukan petani di empat desa di Brebes. Pengumpulan data dilaksanakan melalui metode survei, wawancara, dan pengisian kuisioner kepada 14 petani responden, dan analisis kadar P dan K sampel tanah lahan petani responden. Hasil penelitian menunjukkan bahwa indeks pertanaman (IP) adalah 400-500% dengan pertanaman bawang merah tiga sampai empat kali dan satu kali pertanaman padi. Pemupukan P dan K berturut-turut berkisar 22–171 kg P2O5 ha-1 dan 22–213 kg K2O ha-1, sementara rekomendasi Distan Brebes berturut-turut adalah 54 kg P2O5 ha-1 dan 78 kg K2O ha-1. Pemupukan bervariasi ini tidak berkorelasi nyata dengan produksi, kecuali pemupukan K dengan produksi pada musim hujan yang berkorelasi nyata pada taraf 5% (n=14, r=0.532). Status P tanah sangat tinggi pada semua lokasi dan pada semua kedalaman (0 – 80 cm), sementara status K tanah lebih bervariasi, yaitu dari sedang sampai sangat tinggi.Kata kunci: akumulasi hara, ketersediaan hara, petani kecil, residu hara, status hara

scholarly journals ANALISIS KANDUNGAN FOSFOR PADA TANAH SAWAH DAN BERAS DI DESA WOLOAU KECAMATAN MAUROLE KABUPATEN ENDE

AGRICA ◽  
2019 ◽  
Vol 12 (1) ◽  
pp. 34-42
Author(s):  
Angelia Nia Dhasa ◽  
Charly Mutiara
Keyword(s):  
Soil Ph ◽  
Survey Method ◽  
Rice Varieties ◽  
Soil P ◽  
P Content ◽  
Low Efficiency ◽  
Ph Scale ◽  
Very High ◽  
Total P

High phosphorus (P) content and continuous fertilization cause P saturation, nutrient imbalance in the soil, low efficiency, and the possibility of other nutrients such as Zn becomes unavailable. Therefore it is necessary to research to determine the content of phosphorus in rice fields and rice in Woloau Village, Maurole District, Ende Regency. This study uses a survey method, where the determination of soil samples done by a purposive method. With this method, three hamlets were obtained, which cultivated Ciherang and Inari rice varieties. The main variables observed were available P and total soil P, P in rice. The supporting variables are C-Organic and soil pH. C-Organic is a percentage of fertility in the soil consisting of various C (carbon) bonds. The soil pH is the acidity or basicity of an object measured on a pH scale between 0 to 14. The results of research this show that the mainstay of P is available in paddy soils, namely 96.49 ppm, 101.9 ppm, 97.99 ppm, 98.32 ppm, 95.01, and TC3 99.11 ppm with very high criteria. The total P content in paddy soil is 177.54 ppm, 208.39 ppm, 192.61 ppm, 163.21 ppm, 161.99 ppm, 175.92 ppm with very high criteria. The P content in rice is 1201.88 ppm, 1197.34 ppm, 1230.11 ppm, 1231.23 ppm, 1240.51 ppm, 1248.09 ppm.

scholarly journals PEMETAAN STATUS HARA P, pH dan C organik TANAH SAWAH DI DESA HILIBADALU KECAMATAN SOGAEADU KABUPATEN NIAS

2017 ◽  
Vol 4 (3) ◽  
pp. 240-251
Author(s):  
Charlan B Lombu
Keyword(s):  
Organic Carbon ◽  
Soil Ph ◽  
Nutrient Status ◽  
Soil Samples ◽  
Rice Production ◽  
Total Phosphate ◽  
Grid Survey ◽  
Detailed Level ◽  
Very High ◽  
Available Phosphate

The purpose of this research is to survey and mapping nutrient status of total phosphate, available phosphate, soil pH and organic carbon at paddy fields Hilibadalu Village Sogaeadu District Nias Regency and its influence on rice production. Soil samples were analyzed at the Analytical Laboratory of PT Socfindo Indonesia North Sumatera Province. Which began in October to December 2016. The method used is the Free Grid Survey semi-detailed level survey and analysis of nutrient data total phosphate by Acid destruction method (HClO4), available phosphate by Bray II method, soil pH by H2O extraction and organic carbon by Walkley & black method and then interpret to the map nutrient status. The result of research showing that status total phosphate classified by 3 statuses such as medium (81,59 ha), high (81,15 ha) and very high (27,26 ha). Available phosphate classified in 3 nutrient status such as very low (39,11 ha), low (137,40 ha) and medium (13,49 ha). Soil pH classified into 2 statuses such as moderately acidic (30,16 ha) and strongly acidic (159,84 ha). Organic carbon classified by 3 nutrient statuses such as very low (3,06 ha), low (135,84 ha) and medium (51,10 ha). Available phosphate and organic carbon affect rice production in Hilibadalu Village Sogaeadu District Nias Regency.

scholarly journals Evaluasi Ketersediaan Unsur Hara Fosfor (P) pada Lahan Sawah Intensif Kecamatan Sukamakmur Kabupaten Aceh Besar

2020 ◽  
Vol 4 (4) ◽  
pp. 603-609
Author(s):  
Zainuddin Zainuddin ◽  
Zuraida Zuraida ◽  
Yadi Jufri
Keyword(s):  
Pest Control ◽  
Nutrient Status ◽  
Rice Production ◽  
Rice Fields ◽  
Paddy Fields ◽  
P Fertilization ◽  
Soil P ◽  
Planting Season ◽  
Descriptive Method ◽  
Very High

Abstrak.Pemupukan fosfor (P) di lahan sawah seringkali dilakukan secara intensif pada setiap musim tanam, namun seringkali tanpa memperhatikan status hara P tanah, sehingga menyebabkan terjadinya penimbunan P di dalam tanah.Tujuan penelitian untuk mengetahui ketersediaan unsur hara fosfor dan mengetahui sistem pengelolaan lahan sawah yang menunjukkan hasil produksi yang berbeda.Metode yang digunakan yaitu metode deskriptif. Hasil penelitian kadar P-tersedia di Kecamatan Sukamakmur rata-rata pada lahan sawah berproduksi tinggi 21,83 ppm dan pada lahan sawah berproduksi rendah 24,43 ppm, keduanya termasuk ke dalam kriteria sangat tinggi. Ketersediaan unsur P-total yaitu dengan rata-rata pada lahan sawah berproduksi tinggi 0,56 mg/100 g dan pada lahan sawah berproduksi rendah 0,89 mg/100 g, keduanya termasuk ke dalam kriteria sangat rendah. Produksi padi pada lahan berproduksi rendah diakibatkan (1) akibat penggunaan pupuk yang tidak tepat waktu, (2) serangan penyakit dan hama seperti: hama wereng,walang sangit, ulat, keong dan tikus dan (3)  irigasi tidak mencukupi sebagian petakan sawah. Evaluation of the Availability of Phosphorus Nutrients (P) on Intensive Rice Fields in Sukamakmur District, Aceh Besar RegencyAbstract. Phosphorus (P) fertilization in rice fields is often carried out intensively at each planting season, but often without regard to soil P nutrient status, causing the accumulation of P in the soil. The research objective is to determine the availability of phosphorus nutrients and to know the management system of rice fields which shows different production results. The method used is descriptive method. The results of the study of the levels of available P in Sukamakmur District on average in high-producing rice fields were 21.83 ppm and in low-producing paddy fields 24.43 ppm, both of them included in the very high criteria. The availability of P-total elements is, on average, in high-yielding rice fields 0.56 mg / 100 g and on low-producing rice fields 0.89 mg / 100 g, both of which fall into the very low criteria. Rice production on low production land is caused by (1) due to the use of fertilizer that is not timely, (2) disease and pest attacks such as plant hopper, pest control, caterpillars, snails and rats and (3) insufficient irrigation in part of rice fields. 

scholarly journals PENGKAJIAN PEMUPUKAN FOSFOR (P) DAN KALIUM (K) BERDASARKAN STATUS HARA PADA TANAH DI DAERAH PERTANAMAN JAGUNG DI KABUPATEN PASAMAN BARAT

Jurnal Solum ◽  
2007 ◽  
Vol 4 (2) ◽  
pp. 40
Author(s):  
Yulinar Zubaidah
Keyword(s):  
Water Content ◽  
Soil Depth ◽  
Dry Weight ◽  
Soil Samples ◽  
Survey Method ◽  
Soil P ◽  
High K ◽  
P Content ◽  
Soil Status ◽  
Low K

Analysis of phosphorous (P) and potassium (K) fertilization based on soil P and K status at maize planting area in Pasaman Barat regency had done on October until December 2005. The research was conducted by using survey method.  The area was surveyed through some trails.  Soil samples were taken in every 500 – 1000 m in distance.  Global Position System (GPS) was used to determine the coordinates of sampling points.  In each point composite bulk soil samples were taken on the top 20 cm soil depth.  Each sample represented about 50 ha area.  The results showed that from 7702.2 ha area surveyed, there was 5351.5 ha (69.4%) of the area having high P content, 1487.5 Ha (19,3 %) having moderate P, and 863.2 Ha (11,2 %) having low P.  Potassium status of the soil in the area was as follows, 2798.4 Ha (36,3 %) having high K, 4499.4 Ha (58,4 %) having moderate K, and 404.4 Ha (5,2 %) having low K. The requirement of SP-36 fertilizer was about 90 kg/Ha, 250 kg/Ha and 500 kg/Ha, for soil having high P, moderate P, and low P content. Potassium was required about 0 kg KCl/Ha, 50 kg KCl/Ha and 250 kg KCl/Ha, for soil having high K, moderate K, and low K, respectively.  The both fertilization recommendation was the amount of SP36 and KCl to reach production about 4,5 ton dry weight corn kernel  (with water content 14%) or it is equal to 8 ton corn weight during harvesting time (with water content 25%).Key Words: P- soil status, K-soil status, fertilizer recommendation

scholarly journals Phosphorus and Potassium Status in Paddy Soils (Sawah) of Central Lampung Regency

2007 ◽  
Vol 9 (1) ◽  
pp. 16-19
Author(s):  
Junita Barus
Keyword(s):  
Nutrient Status ◽  
Soil Samples ◽  
Soil Sampling ◽  
Paddy Soils ◽  
Soil P ◽  
High K ◽  
The Status ◽  
Phosphorus And Potassium ◽  
Low K ◽  
Potential Content

The knowledge about the nutrient status in the lowland soils is one of several ways to maintain soil fertility and increasefarmers income. The objective of this study was to evaluate the status of P20J and K20 content in paddy soils (sawah) at Central lampung regency during the year 2001/2002. Composite soil samples were collected in each different soil types based on mapping technical survey of I : 50.000 scale. Composite soil samples consisting of 5 - 10 sub samples were taken from top layer (0 - 20 em) depth. Soil sampling was taken by using grid system, that is I cm2 in the map represented 25 ha in the field p]OJ and K~ potential content determined by HCI 25 %. Data were arranged in a descriptive methode and then classified in to three degrees (high, medium and low). High P was> 40 mg P20s/100 g, medium P was 20;.40 mg P201100 g and law P was < 20 mg P;Os/100 g. High K was > 20 mg K20/100 g, medium K was 10 -20 mg K20 /100 g and low K « 10 mg K~/IOOg). The results shawed that soil p;OJ status in paddy soils (sawah) of Centra Lampung regency were 61,65 % high, 35,84 % medium and 2,65 % low while K20 status were 6,64% high, 16,02 % medium and 77,34% low.

Sidrophore Production and Phosphate Solubilization by Bacillus cereus and Pseudomonas fluorescens Isolated from Iraqi Soils and Soil Characterization

2018 ◽  
Vol 9 (4) ◽  
Author(s):  
Zaid Raad Abbas ◽  
Aqeel Mohammed Majeed Al-Ezee ◽  
Sawsan H
Keyword(s):  
Bacillus Cereus ◽  
Pseudomonas Fluorescens ◽  
Phosphate Solubilization ◽  
Bacterial Species ◽  
Nutrient Status ◽  
Bacterial Count ◽  
Soil Samples ◽  
Phosphate Solubilizing Bacteria ◽  
Clear Zone ◽  
Zone Formation

This study was conducted to explore the ability of Pseudomonas fluorescens and Bacillus cereus to solubilizing a phosphate in soil for enhancing the planting growth and, its relation with soill characterization. The isolates were identified as P.fluorescens and B. cereus using convential analysis and, its phosphate solubilization ability and sidrophore was shown by the clear zone formation on National Botanical Research Institute���s Phosphate medium. Moreover, Pseudomonas fluorescens isolates (n = 9) and three of B. cereus isolated from agricultural area in Baghdad university, Mustansiriyah university and Diyala bridge. Results displayed that bacterial count were varied in soil samples according to their region, and ranging from 30 to 60 *10 2 CFU/g in Baghdad university soil to 10���20 *10 2 CFU/g in Mustansiriyah university soil, the Baghdad soil macronutrient which included: NH4, NO3, P, and K were, 8.42, 20.53, 19.09, 218.73 respectively, While the physio analysis revealed that the mean of pH was 7.3 and EC was 8.63. on the other hand the micronutrient analysis indicated that the soil samples were included Ca, Fe, Mn, Zn and Cu which gave their mean 5025.9, 8.9, 4.9, 0.5 and 1.5 respectevily. Results revealed that all isolated bacteria (9 isolates of P.fluorescens and three isolates of B. cereus gave ahalo zone which mean their ability to be phosphate solubilizing bacteria at 100%. Results revealed that all isolated bacteria were detected a ability to produce high levels from chelating agents (siderophores)) by P.fluorescens and. B cereus at 100%, when appeared ahalo clear zone. Furthermore, the high levels of phosphate solubilization and siderophore production were grouped in bacterial species isolated from Iraqi soils. might be attributed to many soil factors such as soil nutrient status, soil acidity, water content, organic matter and soil enzyme activities.

Minat Mengikuti Ekstrakurikuler Bola Voli Siswa Smp Negeri 3 Satu Atap Karangsambung Kecamatan Karangsambung Tahun Ajaran 2019/2020

2021 ◽  
Vol 1 (01) ◽  
pp. 35-44
Author(s):  
Alfiah Rizqi Azizah ◽  
Eko Pujo Sudarto
Keyword(s):  
Reliability Coefficient ◽  
Survey Method ◽  
Research Subject ◽  
Descriptive Research ◽  
High Category ◽  
Quantitative Descriptive ◽  
Very High

AbstrakTujuan dalam penelitian ini untuk mengetahui seberapa besar faktor-faktor yang dapat mempengaruhi minat siswa-siswi dalam mengikuti ektrakurikuler bola voli di SMP N 3 Satu Atap Karangsambung. Penelitian ini merupakan penelitian deskriptif menggunakan metode survei. Subjek penelitian yang digunakan adalah siswa yang mengikuti ektrakurikuler bola voli di SMP N 3 Satu Atap Karangsambung sebanyak 19 anak. Intrumen yang digunakan berupa angket, dengan koefisien reliabilitas sebesar 0,953 dan untuk menganalisis data digunakan statistik deskriptif kuantitatif dengan persentase. Hasil penelitian menunjukkan minat siswa dalam mengikuti ektrakurikuler bola voli di SMP N 3 Satu Atap Karangsambung sebagian besar berada pada kategori tinggi sebesar 57,80 %, diikuti pada kategori rendah sebesar 21,2 %, kemudian kategori sangat tinggi sebesar 10,5 %, dan kategori sangat rendah sebesar 10,5 %. Jadi dapat disimpulkan minat siswa dalam mengikuti ekstrakurikuler bola voli di SMP N 3 Satu Atap Karangsambung sebagian besar berada pada kategori tinggi.Kata kunci : Minat, Ekstrakurikuler Bola voli,AbstractThe objective of this research is to determine how much the factors that can affect the interest of students in joining volleyball extracurricular at SMPN 3 Satu Atap Karangsambung. This research is descriptive research using survey method. The research subject used were students who took volleyball extracurricular at SMPN 3 Satu Atap Karangsambung as many as 19 students. The instrument used was questionnaire, with a reliability coefficient of 0.953 and to analyze the data used quantitative descriptive statistic with percentage. The results show that students' interest in joining volleyball extracurricular at SMPN 3 Satu Atap Karangsambung is mostly in the high category at 57.80%, followed by the low category at 21.2%, then the very high category at 10.5%, and the very low category at 10.5%. So, it can be concluded that students' interest in joining volleyball extracurricular at SMPN 3 Satu Atap Karangsambung is mostly in the high category.Keywords: Interest, Volleyball Extracurricular

Agronomic and environmental soil test phosphorus in manured and non-manured Manitoba soils

2007 ◽  
Vol 87 (1) ◽  
pp. 73-83 ◽  
Author(s):  
D. Kimaragamage ◽  
O O Akinremi ◽  
D. Flaten ◽  
J. Heard
Keyword(s):  
Iron Oxide ◽  
Surface Soil ◽  
Single Equation ◽  
Soil Samples ◽  
Soil Test ◽  
Regression Equations ◽  
Soil P ◽  
Soil Test Phosphorus ◽  
Bray 1 ◽  
Water Extractable

Quantitative relationships between soil test phosphorus (STP) methods are needed to guide P management especially in manured soils with high P. Our objectives were: (i) to compare amounts of P extracted by different methods; (ii) to develop and verify regression equations to convert results among methods; and (iii) to establish environmental P thresholds for different methods, in manured and non-manured soils of Manitoba. We analyzed 214 surface soil samples (0–15 cm), of which 51 had previous manure application. Agronomic STP methods were Olsen (O-P), Mehlich-3 (M3-P), Kelowna-1 (original; K1-P), Kelowna-2 (modified; K2-P), Kelowna-3 (modified; K3-P), Bray-1 (B1-P) and Miller and Axley (MA-P), while environmental STP methods were water extractable (W-P), Ca Cl2 extractable (Ca-P) and iron oxide impregnated filter paper (FeO-P) methods. The different methods extracted different amounts of P, but were linearly correlated. For an O-P range of 0–30 mg kg-1, relationships between O-P and other STP were similar for manured and nonmanured soils, but the relationships diverged at higher O-P levels, indicating that one STP cannot be reliably converted to another using a single equation for manured and non-manured soils at environmentally critical P levels (0–100 mg kg-1 O-P). Suggested environmental soil P threshold ranges, in mg P kg-1, were 88–118 for O-P, 138–184 for K1-P, 108–143 for K2-P, 103–137 for K3-P, 96–128 for B1-P, 84–111 for MA-P, 15–20 for W-P, 5–8 for Ca-P and 85–111 for FeO-P. Key words: Phosphorus, soil test phosphorus, manured soils, non-manured soils, environmental threshold

scholarly journals Soil Nutrient Status of Brahmaputra Floodplain Area in Tangail Sadar Upazila for Agricultural Uses

2016 ◽  
Vol 8 (2) ◽  
pp. 11-14
Author(s):  
MAM Hossen ◽  
SA Lira ◽  
MY Mia ◽  
AKMM Rahman
Keyword(s):  
Soil Nutrient ◽  
Nutrient Status ◽  
Available Phosphorus ◽  
Soil Nutrient Status ◽  
Fe Content ◽  
P Content ◽  
Zn Content ◽  
Floodplain Area ◽  
Very High ◽  
Brahmaputra Floodplain

Soil samples from high land, medium high land, medium low land and low land of Brahmaputra Floodplain area showed that pH of the soils were slightly acidic; organic matter (OM) content was medium; total nitrogen (N), available potassium (K) and boron (B) content were low; available phosphorus (P) content was very low; available sulfur (S) and calcium (Ca) content were medium to very high; magnesium (Mg) and zinc (Zn) content were low to optimum; copper (Cu), manganese (Mn) and iron (Fe) content were very high suggesting the fact that soils of this area is moderately suitable for agricultural uses.J. Environ. Sci. & Natural Resources, 8(2): 11-14 2015

scholarly journals Analysis of Nutrient Security Prospects in Rural Tamil Nadu: Nutrient Availability, Nutrient Consumption Status and Way to Attain Nutrient Security

2021 ◽  
Vol 9 (3) ◽  
pp. 10-22
Author(s):  
S. Appasmandri ◽  
Keyword(s):  
Nutrient Availability ◽  
Rural Areas ◽  
Distribution System ◽  
Tamil Nadu ◽  
Nutrient Status ◽  
Consumption Pattern ◽  
Public Distribution System ◽  
Nutrient Consumption ◽  
Tamil Nadu State ◽  
Availability Assessment

Among the basic needs of life, food possesses ahead of everyone else as it nourishes us and able to stand which leads further activity. Tamil Nadu state is self-sufficient in food production and Nutrient availability assessment also shows the same but the consumption pattern shows inverse pattern to availability because consumption is directly related with income, education, taste and preference, cultural, ethical and etc. Food consumption patterns of rural Tamil Nadu shows that high demand of Public Distribution System (PDS) observed in earlier and gradually decreased over year. Vitamin Thiamine is coming under severe inequality category in rural areas of Tamil Nadu for both 61st and 68 rounds. Goal programming was effectively optimised the nutrient requirement with least cost and optimised to higher level of nutrient status.

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