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EFFECT OF DIFFERENT PLANT POPULATION DENSITIES OF GROUNDNUT ON SOIL STRUCTURE, WATER USE AND NUTRIENT UPTAKE IN A SANDY LOAM SOIL AT RAJENDRANAGAR

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Title EFFECT OF DIFFERENT PLANT POPULATION DENSITIES OF GROUNDNUT ON SOIL STRUCTURE, WATER USE AND NUTRIENT UPTAKE IN A SANDY LOAM SOIL AT RAJENDRANAGAR
 
Creator NEELAVENI, k
 
Contributor SUBBARAHI REDDY), D
 
Subject EFFECT, DIFFERENT, PLANT POPULATIONDENSITIES, GROUNDNUT, SOIL, STRUCTURE, WATER, NUTRIENT, UPTAKE, SANDY LOAM SOIL, RAJENDRANAGAR
 
Description A field experiment conducted in t.he red chalka soils
(Alfisol) of Rajendranagar on groundnut during the Kharif 1990-91
in~jcated that maintaining a plant population of 5.0 lakh plants
ha under the favourable rainfall conditions of the year increased
the degree of aggregation by 4.41 per cent, the mean
weight diameter by 13.73 per cent, the stability index by 16.53
per cent, the structural coefficient by 5.10 per cent, the
hydraulic conductivity by 13.SISI per cent, the total porosity by
5.44 per cent, the root contribution by 32.36 per cent, and the
soil moisture extraction by 4.07 per cent as compared to the
normal pr~Itice with the plant population density of 3.333 lakh
plants ha • The increase in soil structural indices might be
attributed to the improved root growth, penetration and increased
root contribution per unit area, which might have bound the soil
particles together by better linkages and resulted in the improvement
of soil aggregation. Uptake of nitrogen, phosphorus and potassium was also
increased by 6.20, 6.SI4, and 6.06 per ~Int respectively with a
plant population of 5.0 lakh plants ha as compared to the noE,al practice with a ·plant population_~£ 3.333 lakh p~ants
ha • A maxim~ 1pod yield of 26.84 q ha was obtained with 5.0
la~ · plants ha and the increase in the pod yield was 3.02 q
ha as compared to the normal practice. The increase in pod
yield might be ascribed to the increased number of plants per
unit area, well developed root system, improved soil structure,
enhanced nutrient uptake from the soil and consequent increase in
the number of pods per unit area.
 
Date 2016-08-18T12:01:00Z
2016-08-18T12:01:00Z
1991
 
Type Thesis
 
Identifier ACHARYA N.G. RANGA AGRICULTURAL UNIVERSITY, RAJENDRANAGAR, HYDERA8AD
http://krishikosh.egranth.ac.in/handle/1/72892
 
Language en
 
Format application/pdf