Kil Bünyeli Bir Arazide Toprak Strüktürü ve Nem Sabitlerinin Tütün Atığı Uygulamasıyla Değişimi

Year 2021, Volume: 10 Issue: 2, 88 - 93, 23.09.2021

Coşkun Gülser

https://doi.org/10.21657/topraksu.898853

Cited By: 1

Abstract

Bu çalışmada, tütün atığı (TW) uygulamasının kil bünyeli bir arazide toprak strüktürü ve su tutma
kapasitesine etkisi belirlenmiştir. Tütün atığı kil bünyeli toprak yüzeyine (0-15 cm) 4 farklı oranda (% 0,
2, 4 ve 6) ve tesadüf parselleri denme deseninde üç tekrarlamalı olarak uygulanmıştır. Sekiz ay sonra,
toprak organik karbon içeriği, hacim ağırlığı (BD), toplam gözeneklilik (F), gravimetrik (W) ve hacimsel
(θ) su içeriği, hava dolu gözeneklilik (Fa) ve nispi doygunluk (RS) değerlerindeki değişimler belirlenmiştir.
Tütün atığı uygulama oranları, killi toprağın hacim ağırlığı değerlerini önemli ölçüde düşürürken,
organik C içeriği ve F değerlerini önemli ölçüde artırmıştır. Gravimetrik nem değerleri kontrole göre
önemli ölçüde artmasına rağmen, TW uygulaması ile F değerlerinin artması ile θ ve RS değerleri
azalmıştır. TW'nin yüksek uygulama oranlarında (%4 ve %6), devamlı solma noktası (PWP)'daki nem
içeriğini tarla kapasitesi (FC)'ne göre daha fazla arttırmıştır. Böylece daha yüksek TW oranlarındaki
yarayışlı nem (AWC) değerleri, %2 TW dozu ve kontrol uygulamalarındaki AWC değerlerinden daha
düşük olmuştur. Özellikle killi topraklarda Fa'nın artışı bitki kök solunumu ve mikrobiyal aktivite için
önemlidir. Yüksek TW oranları, F değerlerini artırmış, ancak kontrol muamelesine göre killi toprağın
AWC'sini azaltmıştır.

Keywords

Tütün atığı, kil bünyeli toprak, tarla kapasitesi, solma noktası, nispi doygunluk

Soil Structure and Moisture Constants Changed by Tobacco Waste Application in a Clay Textured Field

Abstract

In this study, effect of tobacco waste (TW) application on soil structural parameters and water holding
capacity were determined in a clay field. Tobacco waste was applied into a clay soil surface (0 - 15 cm)
with 4 different rates (0, 2, 4 and 6%) and three replications in a randomized plot design. After eight
months, changes in soil organic carbon content, bulk density (BD), total porosity (F), gravimetric (W) and
volumetric (θ) water content, air filled porosity (Fa) and relative saturation (RS) values were determined
in clay soil for each treatment. TW application rates significantly increased organic C contents and F
values while they significantly decreased bulk density values of the clay soil. Although the W values
significantly increased over the control, the θ and RS values decreased with increasing the F values
by the application of TW. The high application rates of TW (4 and 6%) increased moisture content at
permanent wilting point (PWP) more than at field capacity (FC). Thus, AWC values in higher rates of TW
were lower than the AWC values in 2% rate of TW and control treatments. Increasing Fa is important
for plant root respiration and microbial activity especially in the clay soils. The high rates of TW increased
F values but decreased the AWC of clay soil over the control treatment.

Keywords

Tobacco waste, clay soil, structure, field capacity, wilting point, relative saturation

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