scholarly journals Site-Specific Nutrient Management for Irrigated Rice in South Central Region of Bangladesh

2018 ◽  
Vol 20 (2) ◽  
pp. 1-9
Author(s):  
MAA Mamun ◽  
SA Islam ◽  
MS Islam ◽  
AJ Mridha ◽  
MA Saleque
Keyword(s):  
Grain Yield ◽  
Central Region ◽  
Field Trial ◽  
Nutrient Management ◽  
Rice Yield ◽  
Substantial Variation ◽  
Irrigated Rice ◽  
Site Specific ◽  
South Central ◽  
A Site

A site-specific nutrient management (SSNM) field trial was conducted for irrigated rice using five fertilizer treatments: i) omission of N, ii) omission of P, iii) omission of K, iv) NPK and v) farmers’ practice (FP). Substantial variation in the native N, P, and K supply was found among farmers’ fields. The indigenous soil K produced 4.5 to 5.0 t ha-1 but native P and N gave only rice yield of 3.5 to 4.0 t ha-1. The highest grain yield (6.0 to 7.5 t ha-1) was obtained from balanced fertilization, followed by FP (4.0 to 5.0 t ha-1).The optimal grain yield at Faridpur was obtained by using N, P and K at 135, 8 and 49 kg ha-1; 139, 9 and 42 kg ha-1; and 140, 10 and 43 kg ha-1 for high, medium and low land rice, respectively. However, for Gopalgonj district fertilizer doses of N, P and K were 140, 11 and 38 kg ha-1; 142, 10 and 42 kg ha-1; and 138, 10 and 49 kg ha-1; and for Madaripur district, 126, 8 and 46 kg ha-1; 120, 7 and 38 kg ha-1; and 99, 6 and 27 kg ha-1 for high, medium and low land rice, respectively. These predicted fertilizer doses increase farmers’ income and protect environment from pollution.Bangladesh Agron. J. 2017, 20(2): 1-9

scholarly journals Farmer’s Participatory Site Specific Nutrient Management in Tidal Flooded Soil for High Yielding Aus Rice

2014 ◽  
Vol 17 (1-2) ◽  
pp. 1-6 ◽  
Author(s):  
M Sh Islam ◽  
MNH Mahmud ◽  
F Rahman ◽  
MA Saleque
Keyword(s):  
Soil Fertility ◽  
Grain Yield ◽  
Nutrient Management ◽  
Rice Yield ◽  
Flooded Soil ◽  
Npk Fertilizers ◽  
Site Specific ◽  
Grade Ii ◽  
Grade Iii

Experiments were conducted in farmers’ fields at Bakergonj, Barisal and Kathaltoli, Potuakhali districts to develop site-specific nutrient management package for high yielding aus rice. The participating farmers delineated soil fertility as the most fertile (grade I), medium fertile (grade II) and the least fertile (grade III) soil. Omissions of N, P, and K were compared with added NPK fertilizers in different fertility grades. At Bakergonj, the NPK treat plots yielded 4.29, 4.36 and 2.09 t ha–1 in soil grade I, II and III, respectively. Omission of N, P and K reduced grain yield by 0.76, 0.95 and 0.29 t ha-1 in grade I, 1.53, 0.87 and 1.25 t ha-1 in grade II and 0.64, 0 and 0.28 t ha-1 in grade III, respectively. At Kathaltoli, the grain yield (6.21 t ha–1) in grade I was higher than grade II (5.58 t ha–1) and grade III (5.11 t ha–1). Omission of N, P and K reduced grain yield by 0.93, 0.18 and 0.09 t ha-1 in grade I, 1.30, 0.37 and 0.93 t ha-1 in grade II and 1.86, 1.30 and 1.30 t ha-1 in grade III, respectively. For Bakergonj, the calculated optimum doses of N were 34, 69 and 29 kg ha–1, P were 4.0, 4.0 and 0.0 kg ha-1 and K were 7.0, 31.0 and 7.0 kg ha–1 for fertility grade I, II and III, respectively. For Kathaltoli, the calculated optimum doses of N were 42, 59 and 84 kg ha–1, P were 1.0, 2.0 and 5.0 kg ha-1 and K were 2.0, 23.0 and 33.0 kg ha–1 for fertility grade I, II and III, respectively. The application of predicted fertilizer dose might increase rice yield in all fertility grades of soil in both the locations.DOI: http://dx.doi.org/10.3329/brj.v17i1-2.20838Bangladesh Rice j. 2013, 17(1&2): 1-6

scholarly journals EFEKTIVITAS PENGGUNAAN TEKNOLOGI PENGELOLAAN HARA SPESIFIK LOKASI PADA TANAMAN PADI DI LAHAN SAWAH IRIGASI SULAWESI TENGGARA

2016 ◽  
Vol 19 (3) ◽  
pp. 227 ◽  
Author(s):  
Zainal Abidin ◽  
Samrin , ◽  
Didik Raharjo
Keyword(s):  
Nutrient Management ◽  
Rice Yield ◽  
Dry Season ◽  
Component Technology ◽  
Wet Season ◽  
Irrigated Rice ◽  
Site Specific ◽  
Rice Area ◽  
Growth Production ◽  
Production Target

<p>Pemupukan merupakan salah satu komponen teknologi yang penting dalam upaya peningkatan produksi padi,namun teknologi rekomendasi pemupukan yang digunakan selama ini kurang spesifik. PHSL adalah aplikasi berbasis komputer yang dapat digunakan untuk memperoleh rekomendasi pemupukan yang spesifik lokasi. Kajian dilakukan untuk mengetahui keragaan pertumbuhan, produksi, dan aspek ekonomi penerapan teknologi PHSL pada lahan sawah irigasi di Sulawesi Tenggara. Kajian dilakukan melalui kaji terap dengan membandingkan antara teknologi pemupukan berdasarkan PHSL dengan teknologi pemupukan berdasarkan kebiasaan petani selama dua musim tanam yaitu pada MH 2011/2012 (Oktober 2011 – Januari 2012) pada luasan 4 ha yang melibatkan 40 orang petani dan MK 2012 (Juli – November) pada luasan 21,4 ha melibatkan 25 orang petani di Kecamatan Uepai Kabupaten Konawe.Hasil kajian menunjukkan bahwa jumlah anakan produktif dan hasil padi sawah yang menggunakan rekomendasi pemupukan PHSL lebih tinggi dan berbeda nyata sementara jumlah gabah hampa lebih rendah dan berbeda nyata dibandingkan dengan teknologi petani. Produktivitas padi yang menggunakan rekomendasi pemupukan PHSL lebih tinggi 20% - 34% dibandingkan dengan teknologi eksisting petani. Aplikasi PHSL relatif baik dalam menentukan dosis pupuk N, P dan K dengan tingkat pencapaian target produksi mencapai 87,5% pada MT I dan 89,5% pada MT 228 Jurnal Pengkajian dan Pengembangan Teknologi Pertanian, Vol. 19, No.3, November 2016: 227-241 II. Penerapan teknologi PHSL memberikan perbedaan keuntungan sebesar Rp3.912.200 pada MT I dan Rp2.838.700 pada MT II. Nilai MBCR pada MT I dan MT II masing-masing 5,12 dan 5,70, menunjukkan rekomendasi pemupukan PHSL layak diterapkan.</p><p><strong>ABSTRACT</strong></p><p><strong></strong>Effectiveness of Site Specific Nutrient Management (SSNM) Application for Rice on Irrigated Land at Southeast Sulawesi. Fertilizing technology is a component technology to increase the rice production, otherwise the existing recommendation for fertilizing is not locally specific. Site Specific Nutrient Management (SSNM) is a software technology to obtain the site specific fertilizing recommendation. The research was applied to analyze the performance of plant growth, production, and economic aspect on irrigated rice area in South East Sulawesi. The research was conducted using action research by comparing SSNM with farmer existing technology for two seasons including wet season (October 2011 – January 2012) for 4 ha area collaborated with 40 farmers and dry season (Juli – November 2012) for 21,4 ha and collaborated with 25 farmers at Uepai Sub District in Konawe District. The result showed that tillering quantity and rice yield of those using SSNM recommendation were significantly higher and the number of empty grains was significantly lower than farmer’s practice as well. The rice productivity using SSNM recommendation was higher 20 – 34% than farmer’s practice. SSNM software was compatible to use in setting doses of N, P and K recommendation with rate of production target reached 87,5% for season I and 89,5% for season II. The application of SSNM technology contributed to increase income by IDR3.912.200 in wet season and IDR2.838.700 in dry season. MBCR value were 5,12 in wet season and 5,70 in dry season those showed SSNM technology was feasible to be applied.</p>

scholarly journals fpr, a Deficient Xer Recombination Site from a Salmonella Plasmid, Fails To Confer Stability by Dimer Resolution: Comparative Studies with the pJHCMW1 mwr Site

2009 ◽  
Vol 192 (3) ◽  
pp. 883-887 ◽  
Author(s):  
Tung Tran ◽  
David J. Sherratt ◽  
Marcelo E. Tolmasky
Keyword(s):  
Central Region ◽  
Comparative Studies ◽  
Recombination Site ◽  
Binding Region ◽  
Site Specific ◽  
Site Specific Recombination ◽  
A Site

ABSTRACT Salmonella plasmid pFPTB1 includes a Tn3-like transposon and a Xer recombination site, fpr, which mediates site-specific recombination at efficiencies lower than those required for stabilizing a plasmid by dimer resolution. Mutagenesis and comparative studies with mwr, a site closely related to fpr, indicate that there is an interdependence of the sequences in the XerC binding region and the central region in Xer site-specific recombination sites.

scholarly journals Farmers’ Participatory Site Specific Nutrient Management in Gangetic Tidal Floodplain Soil for High Yielding Boro Rice (Oryza Sativa L.)

2013 ◽  
Vol 11 (1) ◽  
pp. 8-14 ◽  
Author(s):  
DK Nath ◽  
F Haque ◽  
F Amin ◽  
M Sh Islam ◽  
MA Saleque
Keyword(s):  
Oryza Sativa ◽  
Nutrient Management ◽  
Oryza Sativa L ◽  
Block Design ◽  
Yield Response ◽  
Management Approach ◽  
Nitrogen And Phosphorus ◽  
Floodplain Soil ◽  
Site Specific ◽  
A Site

Site Specific Nutrient Management (SSNM) trials were conducted for irrigated, transplanted and high yielding rice (Oryza sativa L.) during Boro season 2012. Four treatments (NPK, PK, NK, and NP) were applied in a randomized complete block design to assess the effects of indigenous nutrient elements on rice yield and yield components. The trials were conducted so as to develop a site specific nutrient management approach for the farmers of Gangtic Tidal Floodplain ecosystem. The highest grain-yield of 5.64 t ha-1 was observed in NPK treatment, which gave 9.0, 34.4 and 50.7% higher yields than those of NP, NK and PK, respectively. The response to indigenous K was remarkable and it gave the second highest yield (5.13 t ha-1). The yield response to indigenous N was very poor and the lowest yield was found in N omission treatment (2.78 t ha-1). The response to indigenous P was also poor (3.7 t ha-1). This result shows that nitrogen and phosphorus are the most vibrant factors to increase yield since omission of N and P had significant impact on yield during Boro season. Use of N, P and K at 128.7, 8.08 and 12.78 kg, respectively could be recommended for growing BRRI dhan47 in Boro season. It could save P and K nutrient by 55.11 and 75.89 % compared to that of NPK treatment, respectively. DOI: http://dx.doi.org/10.3329/agric.v11i1.15236 The Agriculturists 2013; 11(1) 8-14

Environmental impact and economic benefits of site-specific nutrient management (SSNM) in irrigated rice systems

2007 ◽  
Vol 93 (1-3) ◽  
pp. 1-24 ◽  
Author(s):  
M.F. Pampolino ◽  
I.J. Manguiat ◽  
S. Ramanathan ◽  
H.C. Gines ◽  
P.S. Tan ◽  
...  
Keyword(s):  
Environmental Impact ◽  
Nutrient Management ◽  
Economic Benefits ◽  
Irrigated Rice ◽  
Site Specific

Estimating Indigenous Nutrient Supplies for Site-Specific Nutrient Management in Irrigated Rice

2003 ◽  
Vol 95 (4) ◽  
pp. 924-935 ◽  
Author(s):  
A. Dobermann ◽  
C. Witt ◽  
S. Abdulrachman ◽  
H. C. Gines ◽  
R. Nagarajan ◽  
...  
Keyword(s):  
Nutrient Management ◽  
Irrigated Rice ◽  
Site Specific

Modeling the Response of Cassava to Fertilizers: A Site-Specific Nutrient Management Approach for Greater Tuberous Root Yield

2012 ◽  
Vol 43 (8) ◽  
pp. 1149-1162 ◽  
Author(s):  
G. Byju ◽  
M. Nedunchezhiyan ◽  
C. S. Ravindran ◽  
V. S. Santhosh Mithra ◽  
V. Ravi ◽  
...  
Keyword(s):  
Nutrient Management ◽  
Tuberous Root ◽  
Management Approach ◽  
Root Yield ◽  
Site Specific ◽  
A Site

scholarly journals Evaluation of Different Nutrient Management Practices in Yield of Different Rice Cultivars in Lamjung District of Nepal

2016 ◽  
Vol 4 (2) ◽  
pp. 223-227
Author(s):  
S. Ranabhat ◽  
L.P. Amgain
Keyword(s):  
Grain Yield ◽  
Management Practices ◽  
Nutrient Management ◽  
Rice Yield ◽  
Block Design ◽  
Rice Cultivars ◽  
Rice Varieties ◽  
Fertilizer Recommendations ◽  
Rice Yields ◽  
Biological Yield

A field experiment was conducted on farmer’s field at two sites of Lamjung district of Nepal viz. Bhotewodar and Sundarbazaar to evaluate the performance of two commonly grown rice varieties viz US-382(hybrid) and Ramdhan (improved) under two nutrient management practices [Nutrient Expert®(NE) rice model recommendation, and government recommendation(GR)].Four replicates of four treatments were arranged in randomized completely block design. Rice varieties responded differently under the different nutrient management practices in terms of plant height, grains per panicle, sterility%, panicle weight, grain yield at 15% moisture, straw yield and harvesting index. The highest grain yield was obtained from NE field of US-382 variety which was followed by GR for US-382, NE for Ramdhan and GR for Ramdhan variety. NE based practices for US-382 variety produced higher biological yield as compared to GR. NE estimated attainable rice yield provided by the software compared with actual rice yield from the trials in farmer’s field and NE-based fertilizer recommendations proved the validity in reaching the yield targets estimated by the software. The observed rice yields recorded in the trials were higher than the NE estimated attainable yields, so NE recommendation for US-382 variety was found better over GR.Int J Appl Sci Biotechnol, Vol 4(2): 223-227

scholarly journals Efeito genético, ambiental e interação genótipos x ambientes na qualidade comercial e produtividade de grãos em feijoeiro-comum

2017 ◽  
Vol 38 (3) ◽  
pp. 1241 ◽  
Author(s):  
Helton Santos Pereira ◽  
Renata Cristina Alvares ◽  
Fernanda De Cássia Silva ◽  
Luís Cláudio de Faria ◽  
Leonardo Cunha Melo
Keyword(s):  
Grain Yield ◽  
Central Region ◽  
Block Design ◽  
Coefficient Of Determination ◽  
The South ◽  
Mato Grosso ◽  
Genotype Effect ◽  
Gxe Interaction ◽  
South Central ◽  
Central Regions

The objective of this study was to assess the effects of environmental and genotype x environment (GxE) interaction on the commercial quality and grain yield of common bean for the identification of new cultivars for the South Central and Central regions of Brazil, that combine high adaptability/stability for grain yield, sieve yield (SY) and 100-seed weight (100M). Sixty-two trials were performed in a randomised block design with three replicates in different sowing seasons in the South Central (Rio Grande do Sul (RS), Santa Catarina (SC), Paraná (PR), São Paulo (SP) and Mato Grosso do Sul (MS)) and Central (Goiás (GO) and Distrito Federal (DF)) regions in 2009 and 2010. In the trials, 16 “carioca”-seeded lines were evaluated, and grain yield, SY and 100M were collected. The data were then subjected to individual and joint analyses of variance and to adaptability and stability analyses using the Annichiarico method. Genetic variation was found between the lines for all three traits. Coefficient of determination estimates showed that the genotype effect was more important for commercial quality than for grain yield and that the environmental effect was equally important for all three traits, indicating that the highest possible number of environments should be tested. The highest-yielding lines in the Brazilian Central (CNFC 11954 and CNFC 11959) and South Central (CNFC 11948) regions were different, indicating the importance of GxE interactions for yield. However, the two best lines in the Central Region had low commercial grain quality. Thus, CNFC 11948 will be recommended as the new cultivar selected for broad adaptation because it combines high commercial quality with increased mean grain yield and stability in the South Central Region and better yield and stability than the main controls in the Central Region.

Site-specific Nutrient Management of Irrigated Rice in the Central Plain of Thailand

2010 ◽  
Vol 34 (3) ◽  
pp. 258-269
Author(s):  
Tasnee Attanandana ◽  
Sahaschai Kongton ◽  
Buree Boonsompopphan ◽  
Anan Polwatana ◽  
Prateep Verapatananirund ◽  
...  
Keyword(s):  
Nutrient Management ◽  
Irrigated Rice ◽  
Site Specific ◽  
Central Plain
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