EFFECT OF TOP DRESSING AND FOLIAR APPLICATION OF ORGANIC NUTRIENT SOURCES ON GROWTH AND YIELD OF SORGHUM
KrishiKosh
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Title |
EFFECT OF TOP DRESSING AND FOLIAR APPLICATION OF ORGANIC NUTRIENT SOURCES ON GROWTH AND YIELD OF SORGHUM
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Creator |
BHARATH, T
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Contributor |
MADHAVI, K
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Subject |
acidity, organic acids, yields, sorghum, nutrients, organic fertilizers, vermicomposting, biological development, farmyard manure, crops
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Description |
A field experiment entitled “Effect of top dressing and foliar application of organic nutrient sources on growth and yield of sorghum” was conducted during kharif, 2012 at Student farm, College of Agriculture, Rajendranagar, Hyderabad, Southern Telangana climatic Zone of Andhra Pradesh. The soil of experimental site was sandy clay loam with pH of 7.9, electrical conductivity 0.96 dSm-1, low in organic carbon (0.69%), low in available nitrogen (221 kg ha-1) and high in phosphorus (86 kg ha-1) and high in potassium (446 kg ha-1). The experiment was laid out in randomized block design with nine treatments and three replications. The treatments comprises of Top dressing of vermicompost @ 2.5 t ha-1(T1), Top dressing of vermicompost @ 5 t ha- 1(T2),Foliar spray of vermiwash @ 1% (T3), Foliar spray of vermiwash @ 2% (T4), Foliar spray of humic acid @ 0.5% (T5), Foliar spray of humic acid @ 1% (T6), Foliar spray of fulvic acid @ 0.5% (T7), Foliar spray of fulvic acid @ 1% (T8), 80:40:40 of NPK fertilizers (T9). The results of the experiment indicated significant influence of organic nutrient management on plant growth and yield attributes.Maximum growth in terms of plant height, leaf area index was recorded with application of foliar spray of fulvic acid @ 1% (T8). Dry matter accumulations values were also significantly higher with foliar spray of fulvic acid @ 1% (T8) on par with foliar spray of vermiwash @ 2 %( T4). Days to 50% flowering and growth analysis parameters i.e CGR, RGR and NAR did not vary significantly with different organic sources of nutrients The yield attributes viz., number of ear heads m-2, number of grains ear head-1, test weight, grain yield and stover yield were significantly enhanced with foliar spray of fulvic acid @ 1% (T8) compared to other organic treatments. Grain yield was higher with foliar spray of fulvic acid @ 1% (T8) followed by top dressing of vermicompost @ 5 t ha-1(T2) which are on par with foliar spray of fulvic acid @ 0.5% (T7), top dressing of vermicompost @ 2.5 t ha-1(T1) and foliar spray of humic acid @ 1% (T6). Stover yield was higher with foliar spray of fulvic acid @ 1% (T8) which was on par with top dressing of vermicompost @ 5 t ha-1(T2). Protein content and post harvest soil status and physiochemical properties of soil did not vary significantly with different organic sources of nutrients. The Nutrient uptake (N, P and K) by crop at 60 days to harvest stages was higher with application of foliar spray of fulvic acid @ 1% (T8) on par with top dressing of vermicompost @ 5 t ha-1(T2). The highest gross returns, net returns and B:C ratio were recorded with application of foliar spray of fulvic acid @ 1 % (T8) over other treatments. |
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Date |
2016-06-13T10:05:13Z
2016-06-13T10:05:13Z 2013 |
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Type |
Thesis
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Identifier |
http://krishikosh.egranth.ac.in/handle/1/67225
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Language |
en
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Relation |
D9301;
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Format |
application/pdf
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Publisher |
ACHARYA N.G. RANGA AGRICULTURAL UNIVERSITY
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