INTEGRATED NUTRIENT MANAGEMENT IN SWEET SORGHUM (Sorghum bicolor (L.) Moench) IN SANDY LOAM SOILS (ALFISOLS)
KrishiKosh
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Title |
INTEGRATED NUTRIENT MANAGEMENT IN SWEET SORGHUM (Sorghum bicolor (L.) Moench) IN SANDY LOAM SOILS (ALFISOLS)
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Creator |
SESHAGIRI, G
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Contributor |
MASTHAN REDDY, C
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Subject |
sorghum, yields, bacteria, confectionery, farmyard manure, nutrients, vermicomposting, sugar, fertilizers, harvesting
SWEET SORGHUM, Sorghum bicolor (L.) Moench, SANDY LOAM SOILS,ALFISOLS |
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Description |
A field experiment was conducted at S.V. Agricultural College Farm, Tirupati campus of Acharya N.G. Ranga Agricultural University of Andhra Pradesh, during kharif, 2010, to identify the suitable integrated nutrient management practices for sweet sorghum in sandy loam soils. The present investigation was laid out in a randomized block design with three replications. There were nine treatments viz., 100% RDF (80:40:40 N: P2O5:K2O kg ha-1) (T1), 75% RDF + FYM @ 5 t ha-1 (T2), 75% RDF + FYM@ 5 t ha-1 + Azospirillum @ 5 kg ha-1 + Phosphorus solubilising bacteria @ 5 kg ha-1 (T3), 50% RDF + FYM @ 5 t ha-1 (T4), 50% RDF + FYM @ 5 t ha-1 + Azospirillum @ 5 kg ha-1 + Phosphorus solubilising bacteria @ 5 kg ha-1 (T5), 75% RDF + Vermicompost @ 2.5 t ha-1 (T6), 75% RDF + Vermicompost @ 2.5 t ha-1 + Azospirillum @ 5 kg ha-1 + Phosphorus solubilising bacteria @ 5 kg ha-1(T7), 50% RDF + Vermicompost @ 2.5 t ha-1 (T8), 50% RDF + Vermicompost @ 2.5 t ha-1 + Azospirillum @ 5 kg ha-1 + Phosphorus solubilising bacteria @ 5 kg ha-1(T9). xii Among the integrated nutrient management practices studied, the highest available N and K content in the soil as well as in the index leaves was recorded with 100% RDF (T1) at flowering stage of sweet sorghum. Application of 75% RDF + Vermicompost + Azospirillum + Phosphorus solubilising bacteria (T7) was the next best treatment in recording available N and K content in the soil as well as in the index leaves. Among the integrated nutrient management practices tried, the highest P percent in the index leaves at flowering stage was recorded with 75% RDF + Vermicompost + Azospirillum + Phosphorus solubilising bacteria (T7) (0.090%), followed by 100% RDF(T1) (0.087%). Application of 50% RDF + FYM (T4) (0.056%) recorded the lowest phosphorus content in index leaves. The highest concentration of Fe, Mn, Zn and Cu in the soil as well as in the index leaves at flowering stage was recorded with 50% RDF + FYM (T4). Application of 50% RDF + Vermicompost (T8) was the next best treatment. The lowest available Fe, Mn, Zn and Cu were recorded with 100% RDF (T1) in the soil as well as in the index leaves. The highest available major & micronutrients in the soil and as well as in the index leaves at harvest were recorded with 50% RDF + FYM (T 4) in sweet sorghum. The next best treatment was the application of 50% RDF + Vermicompost (T8). While the application of 100% RDF (T1) recorded the lowest available major & micronutrients in the soil as well as in the index leaves at harvest of the crop. The highest stature of growth components like plant height, cane diameter, total fresh biomass, yield and economic returns were recorded with 100 % RDF (T1) followed by 75% RDF + Vermicompost + Azospirillum + Phosphorus solubilising bacteria (T7). The lowest plant height, cane diameter, total fresh biomass, yield and economic returns were recorded with 50% RDF + FYM (T4). The highest total sugar index and commercial cane sugar yield was recorded with 100% RDF (T1) than rest of the INM treatments tried. The next best treatment was the application of 75% RDF + Vermicompost + Azospirillum + Phosphorus solubilising bacteria (T7). The lowest total sugar index and commercial cane sugar yield was recorded with 50% RDF + FYM (T4). |
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Date |
2016-05-31T14:26:07Z
2016-05-31T14:26:07Z 2011 |
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Type |
Thesis
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Identifier |
http://krishikosh.egranth.ac.in/handle/1/66488
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Language |
en
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Format |
application/pdf
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Publisher |
ACHARYA N.G. RANGA AGRICULTURAL UNIVERSITY
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