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EFFECT OF BIOGAS POULTRY MANURE ON PERFORMANCE OF MAIZE AND ITS RESIDUAL EFFECT ON FORAGE COWPEA

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Title EFFECT OF BIOGAS POULTRY MANURE ON PERFORMANCE OF MAIZE AND ITS RESIDUAL EFFECT ON FORAGE COWPEA
 
Creator CHANDRA DEEPAK, K
 
Contributor SHANTI, M
 
Subject BIOGAS, POULTRY, MANURE, PERFORMANCE, MAIZE, RESIDUAL, EFFECT, FORAGE, COWPEA
 
Description A field experiment was conducted on a sandy loam soil (Alfisol) at fields of
AICRP on Forage Crops, LRI, Rajendranagar, Hyderabad during kharif and rabi,
2007-08. The objective was to study the effect of biogas poultry manure(BPM), a
byproduct of poultry manure based biogas unit, on performance of maize and its
residual effect on forage cowpea. In this study, the recommended dose of N to maize
was replaced by BPM and PM to the extent of 50, 75 and 100 per cent and applied to
soil to study its effect on yields of maize and cowpea, crude protein contents and soil
available nutrient status at harvest of both crops. The experiment was laid out in
randomised block design and replicated thrice. Dekalb super 900, a maize hybrid was
grown during kharif under different levels of N replacement through BPM and PM
and during rabi cowpea was grown purely on residual fertility.
The biogas poultry manure (BPM) was collected from poultry manure based
Biogas Unit at Department of Poultry Science, Rajendranagar, Hyderabad, whereas
poultry manure (PM) was acquired from the poultry farm of AICRP on Poultry, LRI,
Rajendranagar. Cob, seed and stover yields of maize significantly increased with
increasing level of biogas poultry manure (50.31, 40.73 and 39.54 q ha-1,
respectively). Yields were maximum in treatment receiving 100 per cent N through
BPM and the stover yield of maize was maximum at 50 per cent N through PM
treatment. The BPM receiving treatments significantly influenced higher cob, seed
yield and seed protein content of maize, whereas PM receiving treatments increased
stover yield and stover protein content of maize.
Maize seed and stover crude protein which is the most important parameter in
animal nutrition increased significantly with increase in manure application. The
maximum crude protein in seed (%) was recorded in treatment receiving 100 per cent
N through BPM, whereas stover crude protein content was the highest in 75 per cent
N through PM treatment.
The major and micronutrient composition and uptake in maize seed and
stover significantly increased with increasing application of manure (BPM and PM).
The higher values of N, P, K, Fe, Mn, Cu and Zn in seed were recorded in BPM
treated plots, i.e., the treatment receiving 100 per cent N through BPM recorded
76.51, 20.66 and 22.02 kg ha-1 of major nutrients and 48.88, 52.13, 16.29 and 87.16 g
ha-1 of micronutrients, respectively. The higher concentration of N and P (0.35% and
0.04%) were recorded in PM treated plots i.e., T6 and T7 (75% and 100% N through
PM, respectively) treatments, whereas the K concentration was the highest in BPM
treated plots.
The cowpea (grown on pure residual fertility) which was harvested at 50 DAS,
at flowering stage recorded maximum green fodder and dry matter yields in treatment
receiving 100 per cent N through PM during previous kharif. Hence, it could be
concluded that the performance of maize was best when 100 per cent N was applied
through BPM, whereas in cowpea grown on residual fertility the 100 per cent N
through PM treatment gave the highest green fodder yields. The highest protein
content was recorded in PM treated plots, though the increase was non-significant. In
cowpea, the nitrogen and phosphorous concentrations (%) were not significantly
influenced, but potassium (%) was higher in PM treated plots due to slow release of
nutrients from poultry manure. The uptake of N, P, K and micronutrients were
significantly higher in PM treated plots and maximum values recorded in 100 per cent
N through PM treatment. The major nutrient uptake in maize was in the order of BPM
treatments > PM treatments, whereas micronutrient uptake of maize was higher in PM
treated plots.
It is interesting to note that cowpea crop (grown on residual fertility) has
recorded significantly higher values of micronutrients with application of manures.
The highest Fe, Mn and Cu concentrations (ppm) were recorded in PM treated plots
except Zn which was the highest in 100 per cent N through BPM treatment.
Effect on soil physico-chemical properties (pH, EC and OC) after harvest of
both crops (kharif maize and rabi cowpea) was non-significant. Available nutrient
(N, P, K, Fe, Mn, Cu and Zn) status after maize crop significantly increased with
increasing application of manures (272.93, 46.83 and 226.99 kg ha-1 of major
nutrients and 17.48, 63.39, 2.32 and 4.79 mg kg-1 of respective micronutrients). The
available status of N and P2O5 were maximum in PM receiving treatments, whereas,
available status of K2O, Cu and Zn were maximum in BPM receiving treatments. In
case of residual effect on cowpea, the available status of major nutrients N, P2O5 and
K2O were significantly higher in PM treated plots. The available status of Fe and Zn
was the highest in BPM treated plots except Cu and Mn which were not significantly
influenced.
 
Date 2016-07-30T14:35:31Z
2016-07-30T14:35:31Z
2008
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/70320
 
Language en
 
Relation D8340;
 
Format application/pdf
 
Publisher ACHARYA N. G. RANGA AGRICULTURAL UNIVERSITY, RAJENDRANAGAR, HYDERABAD