Empowering Farmer Leaders to Acquire and Practice Site-Specific Nutrient Management Technology

2007 ◽  
Vol 30 (1) ◽  
pp. 87-104 ◽  
Author(s):  
Tasnee Attanandana ◽  
Russell Yost ◽  
Prateep Verapattananirund
Keyword(s):  
Nutrient Management ◽  
Site Specific ◽  
Management Technology

scholarly journals Refining and disseminating site-specific nutrient management technology in Thailand

2008 ◽  
Vol 28 (2) ◽  
pp. 291-297 ◽  
Author(s):  
Tasnee Attanandana ◽  
Prateep Verapattananirund ◽  
Russell Yost
Keyword(s):  
Nutrient Management ◽  
Site Specific ◽  
Management Technology

scholarly journals Site-Specific Nutrient Management for Rainfed Maize in Western Mid-Hills of Nepal

2015 ◽  
Vol 3 (2) ◽  
pp. 227-231 ◽  
Author(s):  
Prakash Ghimire ◽  
Khem Raj Dahal ◽  
Santosh Marahatta ◽  
Krishna Devkota ◽  
Buddhi Raj Ghimire
Keyword(s):  
Nutrient Management ◽  
Block Design ◽  
Maize Production ◽  
Site Specific ◽  
Fertilizer Recommendation ◽  
Application Rates ◽  
Development Committee ◽  
Fertilization Practice ◽  
Village Development Committee ◽  
On Farm

 On-farm experiment was conducted in eight farmers’ field, of Khasyoli village development committee (952 to 1415 masl), Nepal, from April to September, 2011 to address the major constraint (nutrient management) to maize production through site-specific nutrient management (SSNM) as this approach is popular among scientists. The experiment comprised three nutrient omission plots (0N, 0P, and 0K), an ample NPK plot, and a farmers’ fertilization practice (FFP) plot, arranged in randomized complete block design. Farmers planted open pollinated variety (Manakamana-3) and managed in their way. Field-specific NPK application rates were calculated by considering nutrient demand, indigenous NPK supply and recovery efficiency of fertilizers. Grain yield in FFP (2.32 Mg/ha) and 0N (1.79 Mg/ha) plots differed significantly from each other and rest of the treatments, but was statistically similar among 0P (3.18 Mg/ha), 0K (3.40 Mg/ha) and ample NPK (3.38 Mg/ha) plots. Post-harvest grain and stover analysis revealed that indigenous NPK supply (20-71 kg N, 19-68 kg P2O5 and 51-164 kg K2O/ha) of soil vary among the farmers’ field. Moreover, soil was poor in indigenous N supply (42 kg/ha), but rich in indigenous P2O5 (35 kg/ha) and K2O (90 kg/ha) supply, on an average. As per the principles of SSNM, the initial fertilizer recommendation made can vary from 40-222 kg N, 0- 93 kg P2O5, and 0-50 kg K2O/ha. On an average, farmers may apply no or lower dose of P2O5 (18 kg/ha) and K2O (3 kg/ha) but need to significantly increase dose of N (143 kg/ha) fertilizer for enhancing soil and maize productivity.Int J Appl Sci Biotechnol, Vol 3(2): 227-231 DOI: http://dx.doi.org/10.3126/ijasbt.v3i2.12538   

scholarly journals Applicability of the Mehlich-3 method for the site-specific soil nutrient management in Northern Mozambique

2018 ◽  
Vol 9 (9) ◽  
pp. 138-146
Author(s):  
Fukuda Monrawee ◽  
Nakamura Satoshi ◽  
Nasukawa Hisashi ◽  
Naruo Kazuhiro ◽  
M. Ibraimo Momade ◽  
...  
Keyword(s):  
Nutrient Management ◽  
Soil Nutrient ◽  
Site Specific

scholarly journals Site-specific Nutrient Management for Enhancing Crop Productivity

2020 ◽  
pp. 17-25
Author(s):  
Ramesh Chand Bana ◽  
S. S. Yadav ◽  
A. C. Shivran ◽  
Prabhoo Singh ◽  
Vinod Kumar Kudi
Keyword(s):  
Nutrient Management ◽  
Supply And Demand ◽  
Nutrient Use Efficiency ◽  
Simulation Models ◽  
Nutrient Status ◽  
Crop Productivity ◽  
High Price ◽  
Nitrification Inhibitors ◽  
Management Tools ◽  
Site Specific

Nutrient management plays a crucial role in achieving self-sufficiency in food grain production. High price index of chemical fertilizers coupled with mount pollution problem gave rise to interest in precision nutrient management tools. Site specific nutrient management (SSNM) increases and maintains the yield by optimizing the balance between supply and demand of nutrients. Nutrient application as per SSNM concept resulted in significantly higher grain yields of maize, rice, wheat and other important crop over recommended dose of fertilizers (RDF) and farmer’s fertilizers practices. The SSNM is real time feeding of crops with nutrients while recognizing the inherent spatial variability which enhances crop productivity, nutrient use efficiency (NUE) and avoids nutrient wastage. For effective SSNM, utilization of different sensing devices of soil and plant nutrient status, decision support systems, GIS, remote sensing, simulation models and nenoparticles play an important role. Traditional techniques like balanced fertilization, use of nitrification inhibitors and slow-release nitrogenous fertilizers (SRNF) are also used to attain higher productivity and reduce environmental pollution. This paper deals with the SSNM approaches which are able to enhance crop productivity, NUE and sustainability.

scholarly journals Assessing Productivity and Profitability of Hybrid Rice With Site Specific Nutrient Management in Mid Western Terai, Nepal

2019 ◽  
Vol 7 (2) ◽  
pp. 1 ◽  
Author(s):  
Samikshya Acharya ◽  
Binita Mahara ◽  
Lal Prasad Amgain ◽  
Krishna Aryal ◽  
Bishnu l Prasad Kande
Keyword(s):  
Growth Rate ◽  
Management Practices ◽  
Nutrient Management ◽  
Hybrid Rice ◽  
Leaf Color ◽  
Site Specific ◽  
Color Chart ◽  
Straw Yield ◽  
Yield Difference ◽  
Leaf Color Chart

Rice (Oryza sativa L.) is a dominant staple food crop of Nepal which production and productivity is significantly declining compared to several years due to inappropriate nutrient management practices. A field experiment was conducted at Lamahi, Dang to evaluate the performance of hybrid rice(US-305) under rain fed condition with five precision nutrient management practices [Viz: Nutrient Expert® -Rice (NE) recommendation; Leaf Color Chart (LCC) N and Nutrient Expert (P and K); Nutrient Expert (N) and Farmers Fertilizer Practices (P and K); Farmers Fertilizer Practices (FFP) and Government Recommendation (GR)] replicated four times in RCBD design during June to October, 2018. The experimental finding showed that SSNM based Nutrient Expert® -Rice (NE) recommendation gave higher grain yield (6.36 ton ha-1) and straw yield (12.62 ton ha-1) which leads to highest gross return (NRs 242,498) and B: C ratio(3.08). Between the treatments Nutrient Expert® -Rice (NE) recommendation was excellent to growth parameters like plant height, crop growth rate, relative growth rate and leaf area index over FFP. Further, Nutrient Expert® -Rice (NE) recommendation gave significantly higher effective tiller m-2(354.50), panicle length (26.31), panicle weight (81.50), filled grain (390) and fertility (87.56%) over FFP. Nutrient Expert® -Rice (NE) recommendation has increased the grain yield by 23.97% with yield difference of 1.23 ton ha-1 and straw yield by 39.44 % with yield difference of 3.57 ton ha-1 in comparison with FFP. Hence the experiment concluded that site specific nutrient management recommendation that accounts Nutrient Expert® -Rice and leaf color chart could be the practical decision tool for making authentic fertilizer recommendation.

Site-specific nutrient management for intensive rice cropping systems in Asia

2002 ◽  
Vol 74 (1) ◽  
pp. 37-66 ◽  
Author(s):  
A Dobermann ◽  
C Witt ◽  
D Dawe ◽  
S Abdulrachman ◽  
H.C Gines ◽  
...  
Keyword(s):  
Nutrient Management ◽  
Cropping Systems ◽  
Site Specific ◽  
Rice Cropping Systems
Sign in / Sign up

Export Citation Format

Share Document