SITE-SPECIFIC NUTRIENT MANAGEMENT FOR MAIZE HYBRIDS IN AN INCEPTISOL OF WEST BENGAL, INDIA

2017 ◽  
Vol 54 (6) ◽  
pp. 874-887 ◽  
Author(s):  
KRISHNENDU RAY ◽  
HIRAK BANERJEE ◽  
KALLOL BHATTACHARYYA ◽  
SUDARSHAN DUTTA ◽  
AMIT PHONGLOSA ◽  
...  
Keyword(s):  
Nutrient Management ◽  
West Bengal ◽  
Nutrient Use Efficiency ◽  
Nutrient Supply ◽  
Yield Response ◽  
Stay Green ◽  
Site Specific ◽  
Maize Hybrids ◽  
Supply Capacity ◽  
Indigenous Nutrient Supply

SUMMARYThe area under hybrid maize cultivation is increasing rapidly across South Asia. However, information regarding the proper nutrient management for modern stay-green maize hybrids in India is not adequate resulting in low productivity. Existing nutrient management practices are not able to capture the momentum change in the scenario of soil nutrient supply capacity and plant nutrient demand for achieving higher yield target. The present study aims at establishing the site-specific nutrient management (SSNM) package for an inceptisol (West Bengal, India). Soil indigenous nutrient supply capacity and nutrient use efficiency was also evaluated by using the nutrient omission plot technique. The experiment was laid out in strip-plot design, assigning three maize hybrids (P 3522, P 3396 and Rajkumar) in the vertical strip and nine fertilizer treatments [50% RDF/Recommended dose of fertilizer, 75% RDF, 100% RDF (200-60-60 kg N-P2O5-K2O ha−1), 125% RDF, 150% RDF, 100% PK, 100% NK, 100% NP and control (zero-NPK)] in the horizontal strip, with three replications. Results of the experiment revealed that the differences among cultivars were generally non-significant. The maize hybrids showed greater yield response to fertilization with N (4.14 Mg ha−1) during winter, followed by K (2.54 Mg ha−1) and P (1.58 Mg ha−1). Indigenous nutrient supply was estimated 107.2, 37.6 and 107.7 kg ha−1 for N, P and K, respectively. Both average agronomic efficiency (AE) and recovery efficiency (RE) were increased with 50% RDF and it decreased with further increase in NPK levels up to 150% RDF. The average internal efficiency (IE) was higher with 50% RDF closely followed by the treatment with absence of N. As grain yields and gross return over fertilizer (GRF) under 75 to 150% NPK treatments were similar, nutrient doses of 150 kg N, 45 kg P2O5 and 45 kg K2O ha−1 were recommended as optimum for maize hybrids.

scholarly journals Assessment of Indigenous N, P and K Supply for Rice Site Specific Nutrient Management in Buru Regency

2015 ◽  
Vol 19 (3) ◽  
pp. 151
Author(s):  
Andriko Noto Susanto ◽  
Marthen Pasang Sirappa
Keyword(s):  
Nutrient Management ◽  
Nutrient Supply ◽  
Growth And Yield ◽  
Limiting Factors ◽  
Rice Soil ◽  
Site Specific ◽  
Average Value ◽  
Fertilizer Recommendation ◽  
Optimal Target ◽  
Indigenous Nutrient Supply

Rate of fertilizer that should be applied to rice soil based on Site Specific Nutrient Management (SSNM) depends on indigenous nutrient supply, its recovery efficiency, and the amount of nutrients requirement to achieve the yield target. Research on nutrient omission plot was conducted in farmers irrigated land on Waeapo plain, Buru Island. In this area, N, P, and K were the main limiting factors of rice growth and yield. To overcome the constraint, this assessment was conducted to determine the indigenous supply of N, P and K and optimal target of rice productivity. Results of this assessment showed that  the average of rice optimum productivity (Mg grain water content/w.c. 14% ha-1)  in Waeapo plain was 6.55 Mg DGM (Dry Grain Milled) ha-1, with range from 5.6 to 7.3 Mg DGM ha-1 depended on the indigenous supply of  N, P and K. The average value of the indigenous N, P and K supplies in Waeapo plain  Buru was 65.59 kg N ha-1, 13.70 kg P ha-1 and 78.65 kg K ha-1, respectively while average productivity of rice on that indigenous N, P and K supplies was 5.05, 5.96 and 6.05Mg DGM ha-1, respectively. The value of indigenous nutrient supply of this nutrient can be used as a basis of fertilizer recommendation with the SSNM concept. Keywords: Indigenous nutrient supply; nitrogen; phosphorus; potassium; Site Specific Nutrient Management [How to Cite: Andriko NS and  MP Sirappa. 2014. Assessment of Indigenous N, P and K Supply for Rice Site Specific Nutrient Management in Buru Regency. J Trop Soils 19: 151-159. Doi: 10.5400/jts.2014.19.3.151]   

scholarly journals Nutrient omission plot technique for yield response, indigenous nutrient supply and nutrient use efficiency estimation of rice (Oryza sativa L.) crop in Andaman & Nicobar Islands

2019 ◽  
Vol 56 (4) ◽  
pp. 388-395
Author(s):  
B Gangaiah
Keyword(s):  
Oryza Sativa L ◽  
Nutrient Use Efficiency ◽  
Yield Response ◽  
Agronomic Efficiency ◽  
Nutrient Use ◽  
Efficiency Estimation ◽  
Use Efficiency ◽  
Nicobar Islands ◽  
Supply Capacity ◽  
Indigenous Nutrient Supply

A nutrient omission plot technique (NOPT) study in RCBD with 8 treatments (omission (-) of N, P, K, NP, NK, PK and no nutrient omission)and 3 replicates per treatment was made on rice at Port Blair, Andaman and Nicobar Islands during kharif 2015 to ascertain yield response and find out the most crucial nutrient for fertilization.The results revealed that yield response to fertilizers (NPK) was 2.63 t / ha (60.74%). The yield response of P (23.3 %) got multiplied by 2.16 and 2.60 times when combined with N and K applications as compared to their individual effects. Indigenous N, P and K supply capacity of the soil was estimated as 70.6, 10.0 and 80.0 kg/ha. Agronomic efficiency (kg grain / kg nutrient applied) was severely limited by P omission (10.13). The economics(Rs/ha) of rice cultivation indicates that omission of NPK & NP fertilizers results in losses. The highest profits realized with no omission (+NPK) were reduced by 52.3% with P omission. Omission of K followed by N and NK has less impact on profits. Rice crop duration got prolonged and shortened under P and N omission while K omission has no such effect.

Yield Gaps, Indigenous Nutrient Supply, and Nutrient Use Efficiency of Wheat in China

2011 ◽  
Vol 103 (5) ◽  
pp. 1452-1463 ◽  
Author(s):  
Xiaoyan Liu ◽  
Ping He ◽  
Jiyun Jin ◽  
Wei Zhou ◽  
Gavin Sulewski ◽  
...  
Keyword(s):  
Nutrient Use Efficiency ◽  
Nutrient Supply ◽  
Nutrient Use ◽  
Yield Gaps ◽  
Use Efficiency ◽  
Indigenous Nutrient Supply

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 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

Dose-response models to guide site-specific nutrient management and lessons for fertiliser trial design in sub-Saharan Africa

2021 ◽  
pp. 1-18
Author(s):  
Gudeta W. Sileshi
Keyword(s):  
Dose Response ◽  
Trial Design ◽  
Nutrient Management ◽  
Sub Saharan Africa ◽  
Yield Response ◽  
Accurate Estimation ◽  
Site Specific ◽  
Response Models ◽  
Nutrient Levels ◽  
Sub Saharan

Summary Optimisation of fertiliser use and site-specific nutrient management are increasingly becoming critical because of the growing need to balance agricultural productivity with the growing demand for food and environmental concerns. Trials to determine responses of crops to fertilisers have been widely conducted in sub-Saharan Africa (SSA) with increasing emphasis on the development of economically optimum rates (EORs). Computation of EORs depends on accurate estimation of both the optimum nutrient rate and the agronomic maximum yield response; however, estimation of nutrient-response parameters and EORs is beset by a number of problems. Therefore, the objectives of this paper were to (1) point out common problems in the development and use of nutrient dose-response models and (2) provide corrective measures to facilitate future trial design and data analysis. This review outlines the underlying assumptions, strengths and limitations of the various response functions in order to facilitate informed choices by practitioners. Using specific examples, it also shows that (1) the commonly used trial designs do not allow examination of interactions between two or more nutrients and (2) trial designs with ≤5 nutrient levels and wide spacing between the levels result in large uncertainty in dose-response parameters. The key recommendations emerging from the review are as follows: (1) factorial designs and response surface models should be used more widely to address interactions between nutrients; (2) a minimum of six carefully spaced nutrient levels should be used to correctly estimate dose-response parameters; and (3) when locating field trials, Reference Soil Groups and cropping history should be carefully considered to produce site-specific EORs.

scholarly journals A Sustainable Way of Fertilizer Recommendation Based on Yield Response and Agronomic Efficiency for Chinese Cabbage

2019 ◽  
Vol 11 (16) ◽  
pp. 4368 ◽  
Author(s):  
Chuan ◽  
Zheng ◽  
Sun ◽  
Wang ◽  
Liu ◽  
...  
Keyword(s):  
Chinese Cabbage ◽  
Field Experiments ◽  
High Efficiency ◽  
Relative Yield ◽  
Quadratic Function ◽  
Nutrient Supply ◽  
Yield Response ◽  
Agronomic Efficiency ◽  
Fertilizer Recommendation ◽  
Indigenous Nutrient Supply

Chemical fertilizer plays an irreplaceable role in raising vegetable output and improving the livelihood of people in China. Chinese cabbage (Brassica chinensis L.) is one of the most common vegetables with a wide planting area. However, there are problems such as the excessive and blind application of chemical fertilizers, which bring about the increase of planting cost and the risk of environmental pollution. So, it is urgent to improve fertilization methods and improve fertilizer use efficiency, aiming to promote the sustainable development of agriculture. In this study, multi-year and multi-site experiments were retrieved from the published literature and public scientific research institutions to study a sustainable fertilizer recommendation method for Chinese cabbage based on yield response and agronomic efficiency. The results showed that the average indigenous nutrients supply of nitrogen (N), phosphorus (P), and potassium (K) were 112.98, 35.03, and 213.15 kg/ha, respectively. It is suggested that these nutrients should not be neglected in the process of fertilizer recommendation. The average yield responses to N, P2O5, and K2O were 26.6, 13.9, and 16.6 t/ha, the relative yields were 0.70, 0.84, and 0.84; also, it was concluded that the agronomic efficiencies were 114.3, 108.5, and 89.4 kg/kg on average, respectively. From these datasets, the theoretical basis of recommended fertilization was established. It was found that there was a significant negative correlation between N, P, and K indigenous nutrient supply and the yield response to N, P2O5, and K2O, and a significant negative linear correlation between yield response and the relative yield of N, P2O5, and K2O. There was also a significant one-dimensional quadratic function relationship between yield response and agronomic efficiency in Chinese cabbage. Then, two years of field experiments for Chinese cabbage were conducted to verify the fertilizer recommendation. It was concluded that fertilizer recommendation for Chinese cabbage based on yield response and agronomic efficiency was a sustainable way for farmland utilization, not only economically and suitably satisfying its application on fields of different sizes, but also taking into account the indigenous nutrient supply and the interaction between N, P, and K, having shown the advantages of high efficiency, especially when the conditions such as soil testing and plant diagnosis were not sufficient.

scholarly journals The Productivity and Nutrient Use Efficiency of Rice–Rice–Black Gram Cropping Sequence Are Influenced by Location Specific Nutrient Management

2021 ◽  
Vol 13 (6) ◽  
pp. 3222
Author(s):  
Tanmoy Shankar ◽  
Mahua Banerjee ◽  
Ganesh Chandra Malik ◽  
Sudarshan Dutta ◽  
Debtanu Maiti ◽  
...  
Keyword(s):  
Nutrient Management ◽  
West Bengal ◽  
Nutrient Use Efficiency ◽  
Cropping System ◽  
Black Gram ◽  
Management Options ◽  
Area Index ◽  
Nutrient Use ◽  
Target Yield ◽  
Use Efficiency

Nutrient management is critical for rice farming because the crop is grown under diverse conditions, and in most cases, the existing nutrient management practices fail to achieve an attainable yield target. During recent years site specific nutrient management gained importance for a target yield with maximum nutrient use efficiency. Sufficient research work has not been carried out in this direction so far in the rice–rice–pulse (black gram) sequential cropping system under the red and lateritic belt of West Bengal, India. A multi-locational field experiment was conducted from July 2013 to June 2015 at three different locations, namely, Guskara (Burdwan district) and Benuriya (Birbhum district) villages in farmers’ fields and at the university farm of Visva-Bharati, Sriniketan, West Bengal, India. The performance of nutrients was tested by providing ample doses of N, P, K, S, and Zn compared to the omission of these nutrients. The growth parameters, such as crop biomass production, leaf area index, and number of tillers, and yield attributes and yield were influenced by nutrient management treatments. Application of 100% of N, P, K, S, and Zn resulted in its superiority to other nutrient management options studied, and a similar trend was also noted with the treatment in the expression of nutrient use efficiency (NUE) and nutrient response (NR). The available N, P, K, S, and Zn contents in soil increased steadily due to the increase in fertilizer application. The study concluded that optimization of NPK in the rice–rice–pulse cropping system on target yield along with need-based S and Zn application was beneficial for higher productivity.

scholarly journals Effects of NPKS on Yield and Nutrition of BRRI dhan49

2017 ◽  
Vol 20 (2) ◽  
pp. 39-47
Author(s):  
Kamrunnahar ◽  
S Ahmad ◽  
M Iqbal ◽  
MN Islam ◽  
A Islam
Keyword(s):  
Present Experiment ◽  
Plant Nutrition ◽  
Rice Plant ◽  
Nutrient Concentration ◽  
Nutrient Supply ◽  
Yield Reduction ◽  
Wet Season ◽  
K Uptake ◽  
Supply Capacity ◽  
Indigenous Nutrient Supply

Nitrogen (N), phosphorus (P), potassium (K) and sulphur (S) strongly influence rice plant nutrition. Present experiment was conducted at the Bangladesh Rice Research Institute (BRRI) farm, Gazipur in a permanent layout in wet season of 2014. Objectives of the research were to study the effects of NPKS on grain yield, plant nutrition, requirement of NPKS to produce one ton grain and to estimate the indigenous nutrient supply of the soil. BRRI dhan49 was tested with NPKS (complete), PKS (-N), NKS (-P), NPS (-K) and NPK (-S) fertilizer packages. The NPKS were applied @ 100-7-80-3 kg ha-1. Omission of each nutrient from the complete treatments significantly reduced grain and straw yields of BRRI dhan49. The highest yield reduction was recorded because of N omission followed by K. Nutrient concentration in grain and straw as well as nutrient uptakes were significantly affected by major plant nutrients. Nutrient uptake was directly related to the biomass production. About 87% of total K uptake remained in straw and thus a good K source for rice cultivation. Nitrogen, P, K, S and Zn required to produce one ton rice were 20.88, 5.04, 18.77, 2.08 and 0.07 kg, respectively. The indigenous N, P, K and S supply capacity of this soil was 37, 13, 41 and 6 kg ha-1, respectively.Bangladesh Rice j. 2016, 20(2): 39-47

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