Evaluation of Site-Specific Nutrient Management Tools on Puddled Transplanted Rice Evaluation of Site-Specific Nutrient Management Tools on Puddled Transplanted Rice
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Date
2022-08-05
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Banda University of Agriculture & Technology, Banda-210001, Uttar Pradesh, India
Abstract
A field experiment was carried out to study the nitrogen management in the
semiarid region of Bundelkhand by using site-specific nutrient management tools like IRRI
LCC, PAU LCC, and web tool RCM on paddy crop during Kharif 2021. The experiment
was conducted on heavy texture soil at Student‟s Research Farm, College of Agriculture,
Banda University of Agriculture & Technology, Banda. The experimental design was a
split-plot with two main factors viz line transplanting and random transplanting, and six
sub-factor site-specific nutrient management viz. Omission plot nitrogen (T1), Farmers
Fertilizer Practice (T2), State Fertilizer Recommendation (T3), IRRI LCC (T4), PAU LCC
(T5), and RCM (T6) with replicated thrice. The soils of experimental soil site having soil
pH (8.23), electrical conductivity (1.036 dSm-1
), organic carbon (0.34%), and available
potassium (244.0 kg ha-1
). The saving of nitrogen was observed with SSNM tools than
SFR. However, the amount of nitrogen was applied through IRRI LCC 3kg higher, and
PAU LCC was 10 kg higher than FFP. The minimum amount of nitrogen was applied
through RCM. The overall experimental results revealed that the site-specific nutrient
management tool IRRI LCC (T4) and PAU LCC (T5) had a better number of effective
tillers, grains per panicle, and filled grains, thereby significantly increased the grain yield
of paddy in comparison to farmers‟ fertilizer practice (T2) and State fertilizer
recommendation. The RCM was also found to be superior to than FFP and SFR. The
maximum B:C ratio was found with both LCC treatments viz PAU LCC and IRRI LCC
(1.84),While minimum B:C ratio was recorded with FFP. The efficiency indices,
agronomic efficiency was recorded with 25.87, 23.91,and 25.33 Kg grain enhancement per
kg nitrogen with IRRI LCC, PAU LCC and RCM, respectively as compared to FFP (15.80
Kg grain Kg-1
) and SFR (17.51 Kg grain Kg-1
). The recovery efficiency of nitrogen and
partial factor productivity were also recorded better with both LCC and RCM than FFP and
SFR, which indicates better utilization of nitrogen in SSNM treatments. The treatments did
not influence the soil properties. Hence, the study suggests the line transplanting and use of
SSNM tools (IRRI LCC, PAU LCC & RCM) for the better management of nitrogen and
yield maximization of transplanted rice for the Bundelkhand region. However, the results
could be further verified in different rice growing location of the region.
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Citation
Anurag Singh Suman. 2022. Evaluation of Site-Specific Nutrient Management Tools on Puddled Transplanted Rice Evaluation of Site-Specific Nutrient Management Tools on Puddled Transplanted Rice, Thesis M.Sc.