Abstract
Soil compaction and fertilization affect soybean development. This study evaluated the effects of soil compaction and fertilization on soybean (Glycine max cv. Embrapa 48) productivity in a Typic Haplustox under field conditions in Jaboticabal, SP, Brazil. A completely randomized design with a 5 x 2 factorial layout (compaction vs. fertilization), with four replications in each treatment, was employed. Each experimental unit (replicate) consisted of a 3.6 m² useful area. After the soil was prepared by cultivation, an 11 Mg tractor passed over it a variable number of times to create five levels of compaction. Treatments were: T0= no compaction, T1= one tractor pass, T2= two, T4= four, and T6= six passes, and no fertilizer and fertilizer to give soybean yields of 2.5 to 2.9 Mg ha-1. Soil was sampled at depths of 0.02-0.05, 0.07-0.10, and 0.15-0.18 m to determine macro and microporosity, penetration resistance (PR), and bulk density (Db). After 120 days growing under these conditions, the plants were analyzed in terms of development (plant height, number of pods, shoot dry matter per plant and weight of 100 seeds) and seed productivity per hectare. Soil compaction decreased soybean development and productivity, but this effect was decreased by soil fertilization, showing that such fertilization increased soybean tolerance to soil compaction.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 2
Claim · model-written summary
Soil compaction decreased soybean development and productivity relative to no compaction.
- Taxon
- soybean
Glycine maxe0 - Treatment
- Soil compactione0
- Outcome
- soybean development and productivitye0
- Direction
- decreasede0
- Comparator
- no compactione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil compaction decreased soybean development and productivity”
e1“T0= no compaction”
Claim · model-written summary
Soil fertilization decreased the negative effect of compaction and increased soybean tolerance to soil compaction.
- Taxon
- soybeanGlycine maxe0
- Treatment
- such fertilizatione0
- Outcome
- soybean tolerance to soil compactione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“such fertilization increased soybean tolerance to soil compaction”
The same questions in other papers
fertilization · disease · Glycine max (soybean)Positive and negative results
31 papers in the same direction as this paper · 9 in the opposite direction
- negative
- negative
- negative
37 papers more in this group
See all 41 papers →tillage · yield · Glycine max (soybean)Positive and negative results
125 papers in the same direction as this paper · 264 in the opposite direction
- positive
- negative
- positive
386 papers more in this group
See all 390 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.