Partitioning of Soil Test-Crop Response Probability

2015 ◽  
pp. 19-38 ◽  
Author(s):  
L. A. Nelson ◽  
R. L. Anderson
Keyword(s):  
Response Probability ◽  
Soil Test ◽  
Crop Response

Optimization of integrated nutrient recommendations through soil test crop response approach for forage oats (Avena sativa L.) in a Mollisol

2021 ◽  
Vol 69 (2) ◽  
pp. 156-161
Author(s):  
Shalini Jhinkwan ◽  
Sobaran Singh ◽  
Navneet Pareek ◽  
Poonam Gautam
Keyword(s):  
Avena Sativa ◽  
Soil Test ◽  
Crop Response

Validation of Soil Test Crop Response based Fertiliser Prescription Equations under Integrated Plant Nutrition System for Hybrid Brinjalon Inceptisol of Andhra Pradesh

2019 ◽  
Vol 106 (7-9) ◽  
Author(s):  
Ch. Kirankumar ◽  
R. Santhi ◽  
S. Maragatham ◽  
S. Meena ◽  
C.N. Chandrasekhar
Keyword(s):  
Plant Nutrition ◽  
Andhra Pradesh ◽  
Soil Test ◽  
Crop Response

Soil test phosphorus crop response projections to variable rate application in winter wheat

1998 ◽  
Vol 29 (11-14) ◽  
pp. 1731-1738 ◽  
Author(s):  
Michael W. Goedeken ◽  
Gordon V. Johnson ◽  
William R. Raun ◽  
Steven B. Phillips
Keyword(s):  
Winter Wheat ◽  
Soil Test ◽  
Variable Rate ◽  
Crop Response ◽  
Variable Rate Application ◽  
Soil Test Phosphorus

Targeted yield based fertilizer prescriptions for autumn rice (Oryza sativa L.) in inceptisols of Assam, India

2015 ◽  
Vol 49 (5) ◽  
Author(s):  
Sabina Ahmed ◽  
A. Basumatary ◽  
K. N. Das ◽  
B. K. Medhi
Keyword(s):  
Oryza Sativa ◽  
Field Trial ◽  
Plant Nutrition ◽  
Economic Benefit ◽  
Soil Test ◽  
Response Ratio ◽  
Crop Response ◽  
Basic Parameters ◽  
Percent Contribution ◽  
Actual Yield

Soil Test Crop Response (STCR) study was conducted during 2010-11 for autumn rice under integrated plant nutrition system (IPNS) in Inceptisols (Aeric Endoaquepts) in Jorhat district of Assam. The basic parameters were computed from the STCR data, and the fertilizer prescription equations were developed for recommending fertilizer doses in autumn rice. The nutrient requirement (NR) for producing one quintal of autumn rice was found to be 2.40 kg, 0.84 kg and 2.25 kg of N, P<sub>2</sub>O<sub>5</sub> and K<sub>2</sub>O, respectively. The percent contribution of nutrients from soil (CS), fertilizer (CF) and FYM (CO) were calculated as 12.49, 45.31 and 32.92 for N, 13.42, 28.52 and 11.84 for P<sub>2</sub>O<sub>5</sub> and 21.99, 47.58 and 29.76 for K<sub>2</sub>O, respectively. These equations were validated in farmers’ fields during 2012 and the variation between actual yield and targeted yield ranged from +1.36 to +5.33.The fertilizer estimates under STCR-IPNS for 3000 and 4000 kg ha<sup>−1</sup> targeted yield recorded maximum response ratio and economic benefit in the field trial and confirmed the validity of proposed fertilizer prescription equations for autumn rice.

scholarly journals Effect of Soil Test Crop Response based Manure and Fertilizer Application on Potassium Fractions in Soil Inceptisol

2020 ◽  
Vol 9 (8) ◽  
pp. 1971-1978
Author(s):  
V.R. Mageshen ◽  
R. Jayaraghavi ◽  
V.S.V.G. Naresh ◽  
N. Sathiya Bama
Keyword(s):  
Fertilizer Application ◽  
Soil Test ◽  
Crop Response

scholarly journals Effect of phosphorus and determination of optimum nitrogen for bread wheat in Kofele District, West Arsi Zone of Oromia, Ethiopia

2020 ◽  
pp. 34-37
Author(s):  
Tilahun Firomsa ◽  
Abdurahman Husien ◽  
Kafyalew Assefa ◽  
Tilahun Abera ◽  
Amante Lemma ◽  
...  
Keyword(s):  
Grain Yield ◽  
Bread Wheat ◽  
Nitrogen Fertilizer ◽  
Block Design ◽  
Rate Of Return ◽  
Soil Test ◽  
Crop Response ◽  
Marginal Rate ◽  
Budget Analysis ◽  
Calibration Study

Optimum nutrients are basic for proper and balanced fertilizer recommendations as paramount importance in order to confirm food security and increase crop productivity in a sustainable way for farmers and other stakeholders. Soil test based crop response phosphorus calibration study for bread wheat at kofole district in 2016 with objectives to determine the optimum nitrogen of bread wheat to nitrogen-fertilizer applications in soils and to give quantitative guidelines and recommendations of nitrogen-fertilizer for bread wheat on Eutric Vertisols. The study was conducted on farmers’ fields across the district. The treatments considered for optimum nitrogen determination were four levels of nitrogen (0, 46, 69 & 92) and phosphorus (0, 23, 46 & 92) fertilizer included in the treatments. The treatments were arranged in a factorial combination of complete block design with two replications. The plot size of 5mx4m with a seed rate of 150kg/ha a variety of Ogolcho which had been recommended for the area was used. The analysis of variance showed that there were significant differences (p<0.05) among treatments application for all locations. The highest grain yield was obtained on the application 69N kg/ha with no application of phosphorus fertilizers on Eutric Vertisols. Minimum grain yield was obtained on the control plots at all sites. Optimum determination with the partial budget analysis made using the annual average bread wheat grains prices showed that 69 kg N ha-1 gave a marginal rate of return of 122.41%, which is above the acceptable minimum rate of return. Therefore, future research should focus on soil test crop response based phosphorus calibration study of on the result optimum nitrogen of the farmland could be a pre request of the technology before to the end user.

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