Response of wheat to organic sources of nutrients and their effect on soil properties
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Date
2019
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CCSHAU
Abstract
A field study entitled “Response of wheat to organic sources of nutrients and their effect
on soil properties” was conducted at Gurukul Farm, Kurukshetra, Haryana during Rabi 2018. The
experiment was laid down in randomized block design with three replications. The treatments were: T1:
Farm Yard Manure @ 15 t/ha, T2: Vermicompost @ 7.5 t/ha, T3: Jivamrit soil application thrice @ 500
litres/ha (at pre-sowing irrigation, 1st& 2nd irrigation), T4: Jivamrit soil application twice @ 500 litres/ha
(at pre-sowing irrigation & 1stirrigation) + Jivamrit spray twice at 50-60 DAS and 80-90 DAS @ 500
litres/ha, T5: T4+ Ghanjivamrit twice @ 150 kg/ha (Ground casting at 1st& 2ndirrigation, T6: T5+ Sapt
Dhanya Ankur Ark spray @ 1.75 kg/ha in 500-litres water/ha one week after 50% heading, T7:
Recommended dose of fertilizers (RDF), T8: Control.
Plant growth parameters were recorded at 30, 60, 90, 120 DAS and at harvest of wheat crop.
Highest plant height was recorded in T7 (104 cm) at harvest of crop. Maximum number of tillers were
recorded in T7 (400) at harvest followed by T2 and T1 at different stages of crop. Leaf area index (LAI)
increased with the advancement of crop stages reaching peak value at 90 DAS in T7 (4.46). Highest dry
matter accumulation was observed in T7 at all the recorded observations followed by T2 and T1 at
different stages of crop. Yield attributes viz., number of effective tillers, number of grains per spike,
spike length and test weight were significantly higher under application of RDF in T7 followed by T2,
T1 and other cow based nutrient sources. Highest grain yield and straw yield was obtained under RDF
application in T7 followed by T2, T1 and other cow based nutrient sources. Highest residual nitrogen
(128.8 kg/ha), available phosphorous (16.9 kg/ha) was recorded with application of vermicompost in
T2 and application of FYM in T1 recorded highest available potassium (255.3 kg/ha). Application of
vermicompost in T2 recorded highest total bacterial count, fungi population and Azotobacter count at
all the recorded observation, maximum at 90 DAS. Vermicompost application in T2 recorded
maximum phosphorus solubilizing bacteria (PSB) at all the recorded observations. Whereas,
application of FYM in T1 recorded maximum potassium solubilizing bacteria (KSB) at all the recorded
observation. Highest net returns (Rs 31508) and B: C (1.39) was recorded in T7 followed by T1, T2 and
other cow based organic formulations.
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