The response of fruit trees in Michigan to trickle irrigation

Effect of fertigation and hydrogen cyanamide on fruit production, nutrient uptake, and fruit quality in kiwifruit

“…This result is consistent with several other reports (Smith et al 1979;Koo 1980;Dasburg et al 1988). It appears that fertigation can have an application in overcoming soil or nutritional limitations to production or fruit quality, but that on soils where fertiliser practices are generally successful, fertigation may be of limited value.…”

“…Fertigation has resulted in a variety of effects on fruit quality in mature trees and vines. Although, in some instances fertigation has brought improved fruit storage in apples (Goode et al 1978;Delver 1984), and increased colour and sugar content in grapes (Bravdo & Hepner 1987), most workers report only minor changes in fruit quality when fertigation is compared with solid fertiliser application (Smith et al 1979;Koo 1980;Dasburg et al 1988). To some extent, fertigation can cause problems of decreased pH and increased salt load under emitters (Haynes & Swift 1987), and to avoid these problems base dressings can be used to supply some of the fertiliser.…”

“…Uptake of N, phosphate, and K is commonly higher with fertigation than from the use of similar rates of solid fertiliser (Smith et al 1979;Uriu et al 1980;Dasburg et al 1988), and this can be particularly useful in establishing young trees (Koo 1980 (citrus) ;Kipp 1988 (apples); Bussi et al 1991 (peaches)). Fertigation has resulted in a variety of effects on fruit quality in mature trees and vines.…”

Response of Mature 'Manzanilla' Olive Trees to Different Doses of N-P-K Fertilizer Applied by Fertigation

“…In other fruit tree species, fertigation increased the yield when compared with traditional broadcast application (Boman, 1996;Alva and Paramasivan, 1998) and no yield reduction was observed when reduced N amounts were applied by fertigation instead than by broadcast application. 1979;Kipp, 1992). On the other hand, an excess of N fertilizer can negatively affect fruit quality, independently of the application method (Dasberg et al 1983, He et al, 2003.…”

Flux de sève et alimentation hydrique de cerisiers irrigués ou non en localisation

“…généité se manifeste dans l'arbre non irrigué ; iv) qu'il existe des voies préférentielles de (Sizov et Lastreb, 1976 ;Smith et Kenworthy, 1979 ;Kesner et al, 1985). Elle favorise également le rendement cumulé d'associations (greffon + porte-greffe) vigoureuses et peu productives, notamment lorsque l'irrigation est trop réduite ou volontairement rationnée (Soing et Mandrin, 1992 Dans le cadre des études en cours pour détermi-ner les besoins réels en eau du cerisier sous irrigation localisée (Isbérie, 1992) (Do, 1987 ;Cabibel, 1994) (Peyremorte, 1980).…”