Abstract
No-till processing tomato ( Lycopersicum esculentum Mill.) production in four winter cover crop-derived mulches was evaluated in 1997 and 1998 in Five Points, Calif. The effectiveness of two medics, `Sava' snail medic ( Medicago scutellata Mill.) (sava), and `Sephi' barrel medic ( Medicago truncatula Gaertn.) (sephi), and two cereal/legume cover crop mixtures, triticale/`Lana' woolypod vetch ( X Triticosecale Wittm . / Vicia dasycarpa Ten.) (triticale/vetch) and rye/`Lana' woolypod vetch ( Secale cereale L . / V. dasycarpa ) (rye/vetch), was compared with two conventionally tilled fallow controls (with and without herbicide) (fallow+h and fallow-h) in suppressing weeds and maintaining yields with reduced fertilizer inputs. The comparison was conducted as a split plot, with three N fertilization rates (0, 100, and 200 lb/acre; 0, 112, and 224 kg·ha -1 ) as main plots and cover crops and fallow controls as subplots. Tomato seedlings were transplanted 3 weeks after the cover crops had been mowed and sprayed with herbicide. There were no significant differences in weed cover in the no-till cover crop treatments relative to the fallow controls in 1997. Early season weed suppression in rye/vetch and triticale/vetch plots was similar to herbicide-treated fallow (fallow+h) in 1998, however, later in the 1998 season weed suppression was best in the fallow+h. Tissue N was highest in the fallow treatments in both 1997 and 1998. Yields were highest in the triticale/vetch and fallow and lowest in sephi treatments in 1997, but there were no differences among treatments in 1998. These results demonstrate the feasibility of no-till mulch production of furrow irrigated processing tomatoes and identify opportunities for further optimization of the system.
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Claims 9
Claim · model-written summary
In 1997, weed cover did not differ significantly between the no-till cover crop treatments and the fallow controls in processing tomato.
Verbatim
t0“Processing Tomato”
e0“There were no significant differences in weed cover in the no-till cover crop treatments relative to the fallow controls in 1997”
Claim · model-written summary
Early season weed suppression in rye/vetch plots was similar to herbicide-treated fallow in 1998.
Verbatim
t0“Processing Tomato”
e0“Early season weed suppression in rye/vetch and triticale/vetch plots was similar to herbicide-treated fallow (fallow+h) in 1998”
Claim · model-written summary
Early season weed suppression in triticale/vetch plots was similar to herbicide-treated fallow in 1998.
Verbatim
t0“Processing Tomato”
e0“Early season weed suppression in rye/vetch and triticale/vetch plots was similar to herbicide-treated fallow (fallow+h) in 1998”
Claim · model-written summary
Later in the 1998 season, weed suppression was best in the herbicide-treated fallow.
- Taxon
- Processing Tomatot0
- Treatment
- fallow+he0
- Interactor
- weede0weed
- Outcome
- weed suppressione0
- Direction
- beste0
Not reportedComparator
Verbatim
t0“Processing Tomato”
e0“later in the 1998 season weed suppression was best in the fallow+h”
Claim · model-written summary
Tissue N was highest in the fallow treatments in both 1997 and 1998.
Not reportedComparator
Verbatim
t0“Processing Tomato”
e0“Tissue N was highest in the fallow treatments in both 1997 and 1998”
Claim · model-written summary
In 1997, tomato yields were highest in the triticale/vetch and fallow treatments.
Not reportedComparator
Verbatim
t0“Processing Tomato”
e0“Yields were highest in the triticale/vetch and fallow”
Claim · model-written summary
In 1997, tomato yields were lowest in the sephi (barrel medic) treatment.
Not reportedComparator
Verbatim
t0“Processing Tomato”
e0“Yields were highest in the triticale/vetch and fallow and lowest in sephi treatments in 1997”
Claim · model-written summary
In 1998 there were no differences in tomato yield among treatments.
Not reportedComparator
Verbatim
t0“Processing Tomato”
e0“Yields were highest in the triticale/vetch and fallow and lowest in sephi treatments in 1997, but there were no differences among treatments in 1998”
Claim · model-written summary
The results demonstrate the feasibility of no-till mulch production of furrow irrigated processing tomatoes.
Verbatim
e0“These results demonstrate the feasibility of no-till mulch production of furrow irrigated processing tomatoes”
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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.