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Effect of sole and conjunctive applications of plant residues and inorganic nitrogen on profile soil water content and mineral nitrogen in dryland Alfisol

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Title Effect of sole and conjunctive applications of plant residues and inorganic nitrogen on profile soil water content and mineral nitrogen in dryland Alfisol
Effect of sole and conjunctive applications of plant residues and inorganic nitrogen on profile soil water content and mineral nitrogen in dryland Alfisol
 
Creator ICAR_CRIDA
 
Subject Conjunctiveuse, nitrogen, inorganic, sorghum straw, gliricidia, profile soil water, mineral N
 
Description Not Available
Field experiments were conducted on a red sandy loam (mixed isohypertherrnic
Typic Haplustalf) at Hayathnagar Research Farm of the Central Research Institute for Dryland
Agriculture, Hyderabad, during kharif 1994 and 1995 to study the effect of sorghum straw and
gliricidia loppings applied alone and in conjunction with inorganic Nto sorghum, on profile
soil water content and mineral N. Soil water in the 0-15 cm and 15—30 cm soil layers, and mineral
N in the 0-15 cm soil layer were measured at regular intervals during crop growth. In both the
years, soil water contents at different intervals were strongly influenced by rainfall events just
'
preceding the time of measurement. Differences in soil water among treatments were relatively
. small and statistically insignificant. Soil water contents‘were relatively higher in plots that '
received 60 kg N through sorghum straw and 30 kg inorganic N + 30 kg N through sorghum
straw. Mineral N in the soil was significantly influencedby treatments at all sampling intervals.
At 33 days after soWing (DAS) in 1994, mineral N in the soil was highest with 60 kg inorganic
N treatment followed by 30 kg inorganic N + 30 kg N through gliricidia treatment. In 1995,
mineral N in the soil at 33 DAS was highest with 60 kg N through gliricidia treatment followed ’
by 30 kg inorganic N + 30 kg N through gliricidia treatment. At 66 DAS in both the years, highest
mineral N in the soil was observed with 60 kg N through gliricidia treatment. At the time of
crop harvest in both the years, the highest mineral N in the soil'was observed with 60 kg N through
sorghum straw treatment. Findings of this study indicate that incorporated residues do not
influence soil water content but affect mineral N levels in the soil significantly.
Not Available
 
Date 2020-02-25T08:45:40Z
2020-02-25T08:45:40Z
2005
 
Type Technical Report
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/32821
 
Language English
 
Relation Not Available;
 
Publisher S. Sridevil, K. Srinivas and K. L. Sharma