Abstract
A field experiment was conducted along two successive seasons of summer (2014 and 2015) at El-Nubaria Agricultural Experimental Station of the Agricultural Research Center (A.R.C), west of Alexandria. The experiment was laid out to evaluate the effect of two tillage methods: conventional tillage (CT) and no-tillage (NT) and five phosphorous fertilizer treatments in sub plot as follows: P0: without addition, PG1: 240 kg ha-1, PG2: 480 kg ha-1 as granular, PP1: 240 kg ha-1 and PP2: 480 kg ha-1 as powder on soil and maize plant ( Zea mays L.) . Tillage methods affected increased of saturated hydraulic conductivity (Ksat) and total porosity (TP), decreased the bulk density of soil under conventional tillage (CT). Effects occurred in the three depths of the soil layers (0-10), (10-20) and (20-30) cm. The reduction percentages of bulk density values were 8.2, 2.9 and 4.9 % for the three layers, respectively. Yields were increased under CT as compared to no NT. the harvest index was not significantly affected. There were differences in yield responding to phosphorus treatments. Under CT, granular P gave higher yields than powder P and the reverse occurred under NT. Phosphorous content and uptake of grain and straw were significantly affected by phosphorus treatments under both tillage methods. Conventional tillage increased P content and uptake in grain by 14 and 31 % respectively, corresponding increase in P content and uptake in straw were 27 and 45 % respectively. Under CT, treatment PG2 recorded the highest values of P content and uptake in grain (0.793 % and 59.59kgha-1). Corresponding increase in P content and uptake in straw were 0.330 % and 36.79kgha-1. Under NT, the treatment PP2 was recorded the highest values (0.777 % and 52.56 kg ha-1) for phosphorous content and uptake for grain only.
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Claims 20
Claim · model-written summary
Conventional tillage increased soil saturated hydraulic conductivity and porosity.
- Treatment
- conventional tillage (CT)e0
- Outcome
- saturated hydraulic conductivity (Ksat) and total porosity (TP)e0
- Direction
- increasede0
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tillage methods affected increased of saturated hydraulic conductivity (Ksat) and total porosity (TP), decreased the bulk density of soil under conventional tillage (CT).”
t0“maize crop”
Claim · model-written summary
Conventional tillage decreased soil bulk density.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tillage methods affected increased of saturated hydraulic conductivity (Ksat) and total porosity (TP), decreased the bulk density of soil under conventional tillage (CT).”
t0“maize crop”
Claim · model-written summary
Bulk density fell by 8.2% at 0-10 cm.
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The reduction percentages of bulk density values were 8.2, 2.9 and 4.9 % for the three layers, respectively.”
t0“maize crop”
Claim · model-written summary
Bulk density fell by 2.9% at 10-20 cm.
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The reduction percentages of bulk density values were 8.2, 2.9 and 4.9 % for the three layers, respectively.”
t0“maize crop”
Claim · model-written summary
Bulk density fell by 4.9% at 20-30 cm.
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The reduction percentages of bulk density values were 8.2, 2.9 and 4.9 % for the three layers, respectively.”
t0“maize crop”
Claim · model-written summary
Conventional tillage increased yield relative to no tillage.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yields were increased under CT as compared to no NT.”
t0“maize crop”
Claim · model-written summary
Harvest index was not significantly affected.
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the harvest index was not significantly affected.”
t0“maize crop”
Claim · model-written summary
Granular P gave higher yield than powder P under conventional tillage.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under CT, granular P gave higher yields than powder P and the reverse occurred under NT.”
t0“maize crop”
Claim · model-written summary
Powder P gave higher yield than granular P under no tillage.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under CT, granular P gave higher yields than powder P and the reverse occurred under NT.”
t0“maize crop”
Claim · model-written summary
Phosphorus treatments significantly affected grain and straw phosphorus content and uptake.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorous content and uptake of grain and straw were significantly affected by phosphorus treatments under both tillage methods.”
t0“maize crop”
Claim · model-written summary
Conventional tillage increased grain phosphorus content by 14%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Conventional tillage increased P content and uptake in grain by 14 and 31 % respectively, corresponding increase in P content and uptake in straw were 27 and 45 % respectively.”
t0“maize crop”
Claim · model-written summary
Conventional tillage increased grain phosphorus uptake by 31%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Conventional tillage increased P content and uptake in grain by 14 and 31 % respectively, corresponding increase in P content and uptake in straw were 27 and 45 % respectively.”
t0“maize crop”
Claim · model-written summary
Conventional tillage increased straw phosphorus content by 27%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Conventional tillage increased P content and uptake in grain by 14 and 31 % respectively, corresponding increase in P content and uptake in straw were 27 and 45 % respectively.”
t0“maize crop”
Claim · model-written summary
Conventional tillage increased straw phosphorus uptake by 45%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Conventional tillage increased P content and uptake in grain by 14 and 31 % respectively, corresponding increase in P content and uptake in straw were 27 and 45 % respectively.”
t0“maize crop”
Claim · model-written summary
PG2 under conventional tillage gave the highest grain phosphorus content at 0.793%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under CT, treatment PG2 recorded the highest values of P content and uptake in grain (0.793 % and 59.59kgha-1).”
t0“maize crop”
Claim · model-written summary
PG2 under conventional tillage gave the highest grain phosphorus uptake at 59.59kgha-1.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under CT, treatment PG2 recorded the highest values of P content and uptake in grain (0.793 % and 59.59kgha-1).”
t0“maize crop”
Claim · model-written summary
Under conventional tillage, straw phosphorus content was 0.330%.
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Corresponding increase in P content and uptake in straw were 0.330 % and 36.79kgha-1.”
t0“maize crop”
Claim · model-written summary
Under conventional tillage, straw phosphorus uptake was 36.79kgha-1.
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Corresponding increase in P content and uptake in straw were 0.330 % and 36.79kgha-1.”
t0“maize crop”
Claim · model-written summary
PP2 under no tillage gave the highest grain phosphorus content at 0.777%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under NT, the treatment PP2 was recorded the highest values (0.777 % and 52.56 kg ha-1) for phosphorous content and uptake for grain only.”
t0“maize crop”
Claim · model-written summary
PP2 under no tillage gave the highest grain phosphorus uptake at 52.56 kg ha-1.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under NT, the treatment PP2 was recorded the highest values (0.777 % and 52.56 kg ha-1) for phosphorous content and uptake for grain only.”
t0“maize crop”
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