Abstract
Abstract Water management is critical for maximum production of alfalfa ( Medicago sativa L.) with under irrigation resulting in loss of production and over irrigation resulting in a loss of stand. The purpose of this study was to determine the optimum irrigation rates under high evaporative demand. Growth of alfalfa was evaluated on replicated plots (6 × 6 m) established on a fine textured soil (Typic Torrifluvent, clayey over loamy, montmorillonitic, calcareous hyperthermic family) and differentially irrigated from July 1975 to January 1978. The irrigation treatments were applied at 56, 66, 75 (best estimate of E p and 84% of pan evaporation (E p ) and described as dry, semidry, optimum and wet, respectively. Alfalfa yields increased with increase in water applied. Irrigation at 84% E p for leaching did not enhance yield over the optimum water treatment possibly because of reduced stand from waterlogging. The protein concentration of alfalfa was higher in dry than in wet treatments in March and November. During the summer, plant temperatures in the dry treatment were up to 7 C higher than in the wet treatment.
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Claims 4
Claim · model-written summary
Alfalfa yield increased with water applied.
- Taxon
- Alfalfa
Medicago sativae0 - Treatment
- increase in water appliede0
- Outcome
- yieldse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Alfalfa yields increased with increase in water applied”
Claim · model-written summary
Irrigation for leaching did not enhance yield over optimum irrigation.
- Taxon
- alfalfa ( Medicago sativa L.)Medicago sativae0t0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation at 84% E p for leaching did not enhance yield over the optimum water treatment”
t0“alfalfa ( Medicago sativa L.)”
Claim · model-written summary
Dry irrigation had higher alfalfa protein concentration than wet irrigation in March and November.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- drye0
- Outcome
- protein concentratione0
- Direction
- highere0
- Qualifier
- in March and Novembere0
- Comparator
- wet treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The protein concentration of alfalfa was higher in dry than in wet treatments in March and November”
Claim · model-written summary
Summer plant temperature was up to 7 C higher under dry than wet irrigation.
- Taxon
- alfalfa ( Medicago sativa L.)Medicago sativae0t0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“During the summer, plant temperatures in the dry treatment were up to 7 C higher than in the wet treatment”
t0“alfalfa ( Medicago sativa L.)”
The same questions in other papers
irrigation · yield · Medicago sativa (alfalfa)Results differ
25 papers in the same direction as this paper · 66 in the opposite direction
- positive
- no effect
- positive
88 papers more in this group
See all 92 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.