Abstract
Vale do Ribeira (Ribeira Valley), region located in the southern of São Paulo State, Brazil, has little more than 30% of agriculturable area, the conservationist systems being promising to optimize the use of the soil and of the agricultural machines. The objective was to evaluate the effective field capacity of a multiple seeder-fertilizer, as well as plant and soil parameters associated with the effects of the machine. The experiment was carried out in the Experimental Campus of UNESP, in the Registro County, in the agricultural year 2011/2012, under Cfa humid subtropical climate with hot summer, according to the Köppen classification, with average temperature of 22 °C and annual rainfall of 1400 mm. The experimental area has alluvial soils of the type eutrophic Cambisol. The treatments used were CT (conventional tillage), MT (minimum tillage) and NT (no-tillage). The data collected showed that (1) the highest surface coverage in NT reduced soil temperature at 14 h, as well as the thermal amplitude; (2) the average number of days to seedling emergence was higher in no-tillage, caused by the greater surface coverage and the lower soil temperature in the hottest period of the day; (3) the initial stand of the rice crop was similar in the three tillage systems. Additional keywords: minimum tillage; no-tillage; seeder; soil temperature.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 3
Claim · model-written summary
No-tillage surface cover reduced soil temperature at 14 h and thermal amplitude.
Not reportedTaxonComparator
Verbatim
e0“the highest surface coverage in NT reduced soil temperature at 14 h, as well as the thermal amplitude”
Claim · model-written summary
No-tillage increased days to rice seedling emergence.
- Taxon
- Upland rice
Oryza sativat0 - Treatment
- no-tillagee0
- Outcome
- average number of days to seedling emergencee0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the average number of days to seedling emergence was higher in no-tillage”
t0“Upland rice”
Claim · model-written summary
The initial rice stand was similar across three tillage systems.
- Taxon
- Upland riceOryza sativat0
- Treatment
- three tillage systemse0
- Outcome
- initial stand of the rice crope0
- Direction
- similare0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the initial stand of the rice crop was similar in the three tillage systems”
t0“Upland rice”
The same questions in other papers
tillage · organism · Oryza sativa (rice)Positive and negative results
6 papers in the same direction as this paper · 18 in the opposite direction
- positive
- positive
- positive
21 papers more in this group
See all 25 papers →tillage · growth · Oryza sativa (rice)Positive and negative results
32 papers in the same direction as this paper · 116 in the opposite direction
- positive
- positive
- positive
145 papers more in this group
See all 149 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.