Impact of Soil Compaction on the Productivity of Onattukara Soils
By: Sreelatha A K.
Contributor(s): Pushkala S (Guide).
Material type:
BookPublisher: Vellayani Department of Soil Science and Agricultural Chemistry, College of Agriculture 2001DDC classification: 631.4 Online resources: Click here to access online Dissertation note: PhD Abstract: An investigation was carried out at Rice Research station, Kayamkulam to
study the effect of soil compaction with organic manure and amendments on soil physical
properties, nutrient availability, rooting pattern, yield and quality of crops like rice,
sesamum, green gram and cowpea under rice based cropping system of Onattukara tract
of Kerala.
The compaction treatment with four passes of a 400 kg roller significantly
improved the soil physical properties, nutrient availability and yield of all the crops. The
available water content, microporosity, available N, P and K, root volume and root
density significantly increased in compacted treatments for all the crops. Application of
coirpith and kayaJ silt improved the field moisture content in kharif rice. The hydraulic
conductivity and infiltration rates decreased in compacted plots.
The compacted plots recorded less number of days for 50 percent flowering of
sesamum, green gram and cowpea. The rabi crop of rice, sesamum and cowpea recorded
the highest grain yields of 2.72 t ha-I, 529.79 kg ha-I and 594.78 kg ha-I in the
compacted treatment along with coirpith and farm yard manure (@2.5 tha-I)
combination, where as the kharif crop of rice recorded the highest grain yield of 3.15 t
ha-1 in the compacted and coir pith treatments along with 5 t ha-1 farm yard manure.
The seed yield of green gram was highest in compacted and 5 t ha-l farm yard manure
treated plots with no amendments.
Thus it can be concluded that compaction of coarse textured soils along with the
application of 2.5 t ha-1 farm yard manure and 5 t ha-l coir pith significantly improved
the soil physical properties, nutrient availability and inturn the yeild of different crops
under rice based cropping system of Onattukara.
| Item type | Current location | Call number | Status | Date due | Barcode |
|---|---|---|---|---|---|
Theses
|
KAU Central Library, Thrissur Theses | 631.4 SRE/IM (Browse shelf) | Available | 172117 |
PhD
An investigation was carried out at Rice Research station, Kayamkulam to
study the effect of soil compaction with organic manure and amendments on soil physical
properties, nutrient availability, rooting pattern, yield and quality of crops like rice,
sesamum, green gram and cowpea under rice based cropping system of Onattukara tract
of Kerala.
The compaction treatment with four passes of a 400 kg roller significantly
improved the soil physical properties, nutrient availability and yield of all the crops. The
available water content, microporosity, available N, P and K, root volume and root
density significantly increased in compacted treatments for all the crops. Application of
coirpith and kayaJ silt improved the field moisture content in kharif rice. The hydraulic
conductivity and infiltration rates decreased in compacted plots.
The compacted plots recorded less number of days for 50 percent flowering of
sesamum, green gram and cowpea. The rabi crop of rice, sesamum and cowpea recorded
the highest grain yields of 2.72 t ha-I, 529.79 kg ha-I and 594.78 kg ha-I in the
compacted treatment along with coirpith and farm yard manure (@2.5 tha-I)
combination, where as the kharif crop of rice recorded the highest grain yield of 3.15 t
ha-1 in the compacted and coir pith treatments along with 5 t ha-1 farm yard manure.
The seed yield of green gram was highest in compacted and 5 t ha-l farm yard manure
treated plots with no amendments.
Thus it can be concluded that compaction of coarse textured soils along with the
application of 2.5 t ha-1 farm yard manure and 5 t ha-l coir pith significantly improved
the soil physical properties, nutrient availability and inturn the yeild of different crops
under rice based cropping system of Onattukara.
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