SERA ŞARTLARINDA TOPRAĞA İLAVE EDİLEN AHIR GÜBRESİNİN MISIR BİTKİSİNİN ÇİNKO ALIMINA ETKİSİ

Yıl 1971, Cilt: 2 Sayı: 4, - , 11.12.2010

Nazmi Oruç Yüksel Bek

Öz

ÖZET
Bu çalışma Sl::ra şartlarında toprağa ilave edilen çeşitli dozlardaki
olgun ahır gübresinin mısır bitkisinin çinko alımına tesirini
incelemek gayesiyle yapılmıştır. Denemede kullanılan Palanddh:n
çakıllı tım toprağına üç seViyede Zn (0-5-10 kg. Zn/Dek. % 22.72
lik ZnSO4'7HıO) tohumların altma gelecek şekilde solusyon halinde
verilmiştir. Olgun ahır gübresi üç litre hacmindeki ve plastikle kaplanmış
teneke kutulara hacım esasına gô're ve dört seviyede (toprak
konan total hacmin %0 %25 %50 ve % 75) ilave edilmiştil". Elli
günlük gelişme sonunda melez mısır bitkilerinin toprak üstü aksamında
dithizon metoduna gdre Zn tayini yapılmıştır. Deneme esnasında
ahır gübresi dozu arttıkça bitki boylarında kısalma ve yapraklarda
sararmalar müşahade edilmiştir. Total Zn (ppm) miktarı esas alınarak
yapılan istatistiki analizler sonunda muamelelere, ahır gübresine
çinkoya ve interaksiyona ait hesaplanan F değerleri sırasiyle 19.44xx
9. 34Xx, 91.50xx ve 0.57 olarak bulunmuştur. Çinko ve ahır gübresine
ait ortalamaların Duncan (cı.=0.05) testine göre yapılan mukayeselainde
Zn dozlarının birbirinden önemli derecede farklı, ahır
gübresinde ise sadece %25 ile % 50 seviyelerinin birbirinden önemli
derecede farklı olduğu tesbit edilmiştir. Ortogonal mukayesede Zn
dozlarımn tesiri linear ve kuadratik olarak önemli ahır gübresinin
ise sadece linear olarak önemli bulunmuştur. Deneme sonuçları
hacım esasına göre toprağı %25-50 arasında ahır gübresi ilavesinin
mısır gibi çinkoya hassa bitkilerde bu elementin alınmasına mani
olacağım göstermektedir.

SUMMARY
The Effect of Farm Manure Application on Uptake of Zn by the Hybrid Com Under Greenhouse Conditions.

This study was conducted to
determine the effect of farm manure
application on the uptake of Zn by
the hybrid com under greenhouse
cond.itions. Well decomposed farm
manure was added to the soil on volume
basis at different rates (% O 25 %
50 % and 75 % of total siı.e of the
cans) and mi.xed throughly. After
placing the soil in plactic covered
3 lt. cans. Zn was given at 3 levels
(0-5-10 Kg Zn/Dek. as ZnS04.7H20
22.72 % Zn) under the seeds in solution.
15 kg. N/Dek. 15 Kg. P20s/Dek.
and 15 Kg. K20/Dek. were added to
the each can to meet N-P-K requirements
and well mİxed Factorial, completely
randomized black design with 3
replications were used. The moisture
retained under field (greenhouse) water
capacity cond.itions was determined
for each soil group mİxed with different
rates of manure -. The moisture
content of the soils was adjusted to
50 % of this value by the addition
of tap water throughout the experiment.
Hybrid com (Michigan 202)
was seeded and the plants were thinned
to 3 per can. The above portian of
plants were harvested after 50 days
of growing period, and total Zn was
132
analyzed according to the dithizone
method.
The plants received higher Tates
of farm manure and no Zn showed
Zn deficiency symptoms stundeted
over-all growth and chlorosis. This
was attributed to increased microbial
competition for the Zn present complexing
of Zn by organic matter and
phytotoxic properties of the farm
manure. The farm manure and Zn
applications were found to be statisticaIly
significanL Non significant interaction
indicated that the amount of
Zn taken by the plant was regularly
decreased by increasing the farm manure
applications. Whereas increasing
the rates of Zn resulted regular increases
on the Zn uptake at every farm manure
rates. The differences among the mean,
values 'for Zn application were signi.
ficant according to Duncan's new
multiple range test. In the farın manure
application rates 0% and 25 %
be10nged to one population and 50 %
and 75 % belonged to one anather
population. Orthogonal comparisoru;
gaye significant linear and quadratic
relationships for Zn and only linear
relatianship for the farnı manure.
In conclusian the application of
farm manure to the soil at the rates
of 25 %to 50 %on volınne basis may
reduce the uptake of Zn and result
haıardous effects on plant growth.

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