Abstract
A field investigation was conducted to determine the survival and growth rate of eucalyptus (Eucalyptus camaldulensis Dehn.) and guava (Psidium guajava L.) saplings planted in salt-affected soils. The field used was highly saline-sodic in nature with a wide variation in electrical conductivity of the saturated soil extract (ECe), pHs, sodium adsorption ratio (SAR) and gypsum requirement (GR). A randomized complete block design was utilized with three treatments, i.e. T1 = plastic container bags totally removed, T2 = only the plastic container bag's base removed and T3 = plastic container bags un-removed. There were 34 and 8 plants in each block for eucalyptus and guava, correspondingly. The survival rates of eucalyptus and guava saplings were greater than 90%. In addition, gain in eucalyptus height was significantly higher in the T1 treatment where the bags were totally removed while for guava height the treatments were not significant.The gain in girth was not significant for both eucalyptus and guava saplings. With eucalyptus the taproot length was greater than the lateral roots while for guava the lateral roots were longer than the taproots.There was a decrease in the salinity-sodicity of the soils for the upper 30 cm depth under both types of vegetation, indicating that the salts had leached down to the B-horizon.
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Claims 7
Claim · model-written summary
Survival rates of eucalyptus and guava saplings were greater than 90%.
Verbatim
e0“The survival rates of eucalyptus and guava saplings were greater than 90%”
e7“A field investigation was conducted to determine the survival and growth rate of eucalyptus (Eucalyptus camaldulensis Dehn.) and guava (Psidium guajava L.) saplings planted in salt-affected soils”
Claim · model-written summary
Gain in eucalyptus height was significantly higher where the bags were totally removed.
- Taxon
- eucalyptus
.jpg?width=60)
Eucalyptuse1 - Treatment
- the bags were totally removede1
- Outcome
- gain in eucalyptus heighte1
- Direction
- highere1
- Setting
- field investigatione7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e1“gain in eucalyptus height was significantly higher in the T1 treatment where the bags were totally removed”
e7“A field investigation was conducted to determine the survival and growth rate of eucalyptus (Eucalyptus camaldulensis Dehn.) and guava (Psidium guajava L.) saplings planted in salt-affected soils”
Claim · model-written summary
Bag treatments did not significantly affect guava height.
- Taxon
- guava
Psidium guajavae2 - Treatment
- treatmentse2
- Outcome
- guava heighte2
- Direction
- not significante2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“for guava height the treatments were not significant”
Claim · model-written summary
Gain in girth was not significant for eucalyptus and guava saplings.
Verbatim
e3“The gain in girth was not significant for both eucalyptus and guava saplings”
Claim · model-written summary
Eucalyptus taproot was longer than its lateral roots.
- Taxon
- eucalyptusEucalyptuse4
- Outcome
- taproot lengthe4
- Direction
- greatere4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“With eucalyptus the taproot length was greater than the lateral roots”
Claim · model-written summary
Guava lateral roots were longer than its taproot.
- Taxon
- guavaPsidium guajavae5
- Outcome
- lateral rootse5
- Direction
- longere5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“for guava the lateral roots were longer than the taproots”
Claim · model-written summary
Salinity-sodicity of the soil decreased in the upper 30 cm under both vegetation types.
Verbatim
e0“The survival rates of eucalyptus and guava saplings were greater than 90%”
e6“There was a decrease in the salinity-sodicity of the soils for the upper 30 cm depth under both types of vegetation”