נגישות
menu      
חיפוש מתקדם
תחביר
חפש...
הספר "אוצר וולקני"
אודות
תנאי שימוש
ניהול
קהילה:
אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
Response of tomato plants to N and water applied via a trickle irrigation system: II. Water
Year:
1982
Source of publication :
Agronomy Journal
Authors :
בר-יוסף, בניהו
;
.
שגיב, ביז'אן
;
.
Volume :
74
Co-Authors:

B. Bar‐Yosef  

B. Sagiv

Facilitators :
From page:
637
To page:
639
(
Total pages:
3
)
Abstract:

The objective of the study was to relate tomato fruit yield and N uptake to water application rates via a trickle irrigation system at given N rates and to total water potential in the soil root volume. This information is needed to improve tomato cropping management under point source irrigation. The experiments were conducted on sandy soils at three different locations in Israel and included combinations of several daily N and water application rates, and two irrigation intervals. Fruit yield responded linearity to increasing total irrigation rates (Qw) up to 80% of the accumulated evaporation from a U.S. Class A pan (Ep), the slope of the response line being 15 metric tons/ha for each 10% change in Qw/Ep. The optimum average N concentration in the irrigation solution was determined to be 130 ppm N, below which yields and growth were inhibited and above which the soil water potential Ψ decreased, thus increasing the dry matter content of the fruit. A decrease in Ψ from −50 to −150 centibars appreciably decreased fresh fruit yield; a further decrease in Ψ caused a slower decrease in fresh fruit yield.

 

Note:
Related Files :
irrigation
plant nutrition
Solanum lycopersicum
tomato
Trickle irrigation
water
עוד תגיות
תוכן קשור
More details
DOI :
10.2134/agronj1982.00021962007400040012x
Article number:
0
Affiliations:
Database:
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
52819
Last updated date:
02/03/2022 17:27
Creation date:
29/12/2020 23:46
Scientific Publication
Response of tomato plants to N and water applied via a trickle irrigation system: II. Water
74

B. Bar‐Yosef  

B. Sagiv

Response of tomato plants to N and water applied via a trickle irrigation system: II. Water

The objective of the study was to relate tomato fruit yield and N uptake to water application rates via a trickle irrigation system at given N rates and to total water potential in the soil root volume. This information is needed to improve tomato cropping management under point source irrigation. The experiments were conducted on sandy soils at three different locations in Israel and included combinations of several daily N and water application rates, and two irrigation intervals. Fruit yield responded linearity to increasing total irrigation rates (Qw) up to 80% of the accumulated evaporation from a U.S. Class A pan (Ep), the slope of the response line being 15 metric tons/ha for each 10% change in Qw/Ep. The optimum average N concentration in the irrigation solution was determined to be 130 ppm N, below which yields and growth were inhibited and above which the soil water potential Ψ decreased, thus increasing the dry matter content of the fruit. A decrease in Ψ from −50 to −150 centibars appreciably decreased fresh fruit yield; a further decrease in Ψ caused a slower decrease in fresh fruit yield.

 

Scientific Publication
You may also be interested in