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 -
Sweet corn response to surface and subsurface trickle phospshorus fertigation
Year:
1989
Source of publication :
Agronomy Journal
Authors :
בר-יוסף, בניהו
;
.
מרקוביץ, טיבור
;
.
שגיב, ביז'אן
;
.
Volume :
81
Co-Authors:

B. Bar‐Yosef  

B. Sagiv  

T. Markovitch

Facilitators :
From page:
443
To page:
447
(
Total pages:
5
)
Abstract:

High‐frequency phosphorus fertigation may increase the time‐averaged P concentration in the soil solution above that expected from P solubility considerations. Where P is a yield‐limiting factor, frequent P fertigation may increase yield by stimulating P‐uptake by the roots. A field experiment was conducted on a loessial soil (Haploxeralf) high in NaHCO3‐extractable P (0.8 mmol kg−1 soil) to test the hypothesis that subsurface placement of emitters (SSR) is more effective in stimulating P uptake than surface placement (SR). Four concentrations of P in the water (Cp), 0.04,0.16,0.64, and 1.29 mol P m−3, were applied via surface or subsurface emitters to sweet corn [Zea mays (L.) Jubilee]. Marketable ear yield increased with Cp, yielding 22.9,24.3,24.9, and 28.9 t ha−1, respectively. Yield was higher for tricklers placed 30 cm below soil surface (25.2 t ha−1) than on the surface (23.5 t ha−1). Elevated Cp increased the soil solution P concentration, thereby increasing total P uptake and total dry matter production by the plants. Deep trickler placement significantly increased the fraction of total dry matter allocated to the ears, which resulted in higher marketable yield. Subsurface irrigation also reduced weed growth due to the dry top soil during the experiment.

Note:
Related Files :
fertigation
Phosphorus
Sweet corn
Zea mays
עוד תגיות
תוכן קשור
More details
DOI :
10.2134/agronj1989.00021962008100030009x
Article number:
0
Affiliations:
Database:
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
52960
Last updated date:
02/03/2022 17:27
Creation date:
03/01/2021 23:47
Scientific Publication
Sweet corn response to surface and subsurface trickle phospshorus fertigation
81

B. Bar‐Yosef  

B. Sagiv  

T. Markovitch

Sweet corn response to surface and subsurface trickle phospshorus fertigation

High‐frequency phosphorus fertigation may increase the time‐averaged P concentration in the soil solution above that expected from P solubility considerations. Where P is a yield‐limiting factor, frequent P fertigation may increase yield by stimulating P‐uptake by the roots. A field experiment was conducted on a loessial soil (Haploxeralf) high in NaHCO3‐extractable P (0.8 mmol kg−1 soil) to test the hypothesis that subsurface placement of emitters (SSR) is more effective in stimulating P uptake than surface placement (SR). Four concentrations of P in the water (Cp), 0.04,0.16,0.64, and 1.29 mol P m−3, were applied via surface or subsurface emitters to sweet corn [Zea mays (L.) Jubilee]. Marketable ear yield increased with Cp, yielding 22.9,24.3,24.9, and 28.9 t ha−1, respectively. Yield was higher for tricklers placed 30 cm below soil surface (25.2 t ha−1) than on the surface (23.5 t ha−1). Elevated Cp increased the soil solution P concentration, thereby increasing total P uptake and total dry matter production by the plants. Deep trickler placement significantly increased the fraction of total dry matter allocated to the ears, which resulted in higher marketable yield. Subsurface irrigation also reduced weed growth due to the dry top soil during the experiment.

Scientific Publication
You may also be interested in