"Refinement of Soil Test Crop Response - Integrated Plant Nutrition System based Fertilizer Prescriptions for Pearl Millet Variety on an Inceptisol"

2018 ◽  
Vol 105 (4-6) ◽  
pp. 165
Author(s):  
K.B. Ravikiran ◽  
R. Santhi ◽  
S. Meena ◽  
P. Sumathi
Keyword(s):  
Pearl Millet ◽  
Plant Nutrition ◽  
Soil Test ◽  
Crop Response

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 Soil test crop response based Integrated plant nutrition system for desired yield target of preseasonal sugarcane ratoon on Inceptisols

2017 ◽  
Vol 9 (2) ◽  
pp. 799-804
Author(s):  
N. B. Ghube ◽  
A. D. Kadlag ◽  
B. M. Kamble
Keyword(s):  
Plant Nutrition ◽  
Field Experiments ◽  
Farmyard Manure ◽  
Soil Test ◽  
Crop Response ◽  
Yield Model ◽  
Available Nitrogen ◽  
Ratoon Sugarcane ◽  
Basic Parameters ◽  
Sugarcane Ratoon

Studies on Soil Test Crop Response based Integrated Plant Nutrition System (STCR - IPNS) were conducted adopting the Inductive cum Targeted yield model onInceptisols (VerticHaplustepts) in Rahuri, District Ahemadnagar, Maharashtra, India in order to develop fertilizer prescriptions through IPNS for the desired yield targets of preseasonal sugarcane ratoon. The field experiments were carried out with maize as gradient crop for plant cane and after harvest of plant cane, pre-seasonal sugarcane ratoon as test crop. Using the data on yield, initial soil test values on available nitrogen (N), phosphorus (P), potassium (K), doses of fertilizers and farmyard manure (FYM) applied and NPK uptake, the basic parameters viz., nutrient requirement, contribution from soil, fertilizers and FYM were computed. It was found that 1.56 kg N, 0.58 kg P and 1.04 kg K were required for producing one tonnemillable cane of preseasonal ratoon sugarcane. The per cent contributions of N, P and K from soil and FYM for preseasonal sugarcane ratoon were 37.65, 85.88 and 19.82 per cent and 11.83, 10.88 and 12.24 per cent, respectively. Making use of these basic parameters, fertilizer prescription equations were developed for pre-seasonal sugarcane ratoon (var. C0-94012) and an estimate of fertilizer doses formulated for a range of soil test values and desired yield targets under NPK alone and IPNS (NPK plus FYM).

Evaluation of soil test crop response based integrated plant nutrition system (STCR-IPNS) recommendations for transgenic cotton on Inceptisol

2014 ◽  
Vol 15 (1) ◽  
pp. 226 ◽  
Author(s):  
S. Praveena Katharine ◽  
R. Santhi ◽  
C. N. Chandrasekhar ◽  
S. Maragatham ◽  
K. M. Sellamuthu
Keyword(s):  
Plant Nutrition ◽  
Transgenic Cotton ◽  
Soil Test ◽  
Crop Response
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