RESPONSE OF FLAX TO IRRIGATION FREQUENCB AND SOME MICRO-NUTERIENTS APPLICATION IN CALCAREOUS SOILS.: 2- MACRO AND MICRO·NUTRIENTS UPTAKE BY FLAX PLANTS.

Document Type : Original Article

Authors

1 SOli, water and Environ. Res. Inst. Agric. Res. Center, Giza, Egypt

2 Field Crop Res. Institute, Agrlc.Res.Center, Giza, Egypt.

3 SOli, water and Environ. Res. Inst. Agric. Res. Center, Giza, Eg pt

Abstract

Two field experiments were conducted in calcareous soil of the farm of
Nubaria Agric.Res.Station during two successive seasons to study the I effect of
irrigation frequency, microelement- nutrients and their interactions on l"I\acro and
micro nutrients uptake by flax plants Giza 7, Giza 8 and S, (the new strain) cllltivars.
The result can be summarfzed as the following:
1- Giza 8 and new strain1 recorded about the same maximum values of N P and K
uptake by both of seed and straw of flax plant, while those of Giza 7 reflected the
lowest effects.
2- Irrigation frequency had significant effects on macronutrients uptake for all
cultivars under study. Five or seven Umes of irrigation gave about the same
highest values of N; P and K. data are represented by 15.92, 2.69 an 3.721 kg
Fed" respectively.
3- Conceming foliar treatment mixture of Fe,Zn and Mn, the treated plant gave the
highest mean vafues of N uptake by seed (15.16 kg Fed") compar tively with
those of untreated oneS(12.14 kg Fed"). Data of P and K uptake ere not in
higher values, but they showed some reasonable increases.
4- As for the triple interaction effect, il can be summarized that, the absolutely highest
values of N, P and K were 23,16, 3.55 and 4.23 kg Fed" respectively. The
mentioned values were obtained from (la x Foliar x Giza8), and (I. x foliar x Giza 8)
interaction treatments respectively.
5- In respect of micronutrient uptake, the highest values of Fe uptake (566.6 and
565.97 9 Fed" ) were obtained from (I. x foliar x Giza 8) and (I. x foliar x 5,)
respectively. While the highest values related to Zn and Mn uptake ( 88.87 and
52.4 g Fed" ) were obtained from (I. x foliar x Giza 8) and (12 x foli r x Giza 8)
respectively.
6- It can be recommended to G8 and 51, with 7 times of irrigation that recorded the
highest effects for all macro and micronutrients uptake under foliar application.

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