Farklı Dozlarda Kireç Uygulamasının İki Farklı Tekstürdeki Toprağın Bazı Fiziksel Ve Kimyasal Özellikleri Üzerine Etkisi

Yıl 2020, Cilt: 9 Sayı: 2, 80 - 87, 29.09.2020

Qutaiba Abdulwahhab , Cevdet Şeker

https://doi.org/10.21657/topraksu.699821

Cited By: 2

Öz

Kurak ve yarı kurak bölge toprakların en önemli özelliklerinden bir tanesi genellikle yüksek kireç (K) içeriklerine sahip olmalarıdır. Kirecin toprak özellikleri üzerine etkileri bilinmekle birlikte, yüksek kireç içeriğinin etkileri konusunda yeterli çalışma bulunmamaktadır. Bu nedenle yapılan çalışmada taklidi yüksek kireç içeriğinin farklı iki tekstürdeki toprağın bazı fiziksel ve kimyasal özellikleri üzerine etkileri belirlenmiştir. Bu amaçla, yüksek kireç içeriğini taklit etmek için, kil ve kumlu tın tekstürdeki topraklara ağırlıkça %0, % 5, % 10 ve % 20 oranlarda kireç ilave edilip, tarla kapasitesinde bir ay süreyle inkübasyona bırakılmıştır. İnkübasyon sonu toprağın hacim ağırlığı (HA), tane yoğunluğu (TY), ağırlıklı ortalama çapı (AOÇ), agregat stabilitesi (AS), likit limiti, plastik limiti, plastiklik indisi, pH’sı, elektriksel iletkenliği (EC), organik karbon içeriği (OC), organik karbon mineralizasyonu (KM), toplam azotu (TN) ve C: N oranı gibi özelliklerine artan dozda kireç uygulamalarının etkileri belirlenmiştir. Buna göre, killi ve kumlu tın topraklarda %20 kireç uygulaması kontrole göre kıyaslandığında (%20 kireç uygulaması ölçümü / kontrol ölçümü) pH’yı aynı oranda artırmış (1.01), sırasıyla; CaCO3 içeriğini 2.09-2.59, C/N oranını 1.17-1.20; HA’yı 1.06-1.02; TY’yi 1.03-1.07 ve AOÇ’yi 1.41-1.36 oranlarında artırırken, EC’yi 0.84-0.96 ve likit limiti 0.86-0.94 oranlarında azaltmıştır. Kireç uygulamalarının diğer toprak özellikleri üzerindeki etkisi ise toprak tekstürüne bağlı olarak değişkenlik göstermiştir. Kireç içeriği dışında, kontrole göre toprak özelliklerinde ortaya çıkan en yüksek değişkenlik killi toprakta TN ve AOÇ değerlerinde, kumlu tın toprakta ise AS ve yine AOÇ değerlerinde olmuştur.

Anahtar Kelimeler

Toprak tekstürü,, kireç uygulaması,, toprağın fiziksel ve kimyasal özellikleri

Destekleyen Kurum

Selçuk Üniversitesi Bilimsel Araştırma Projeleri (BAP)

Proje Numarası

18201034

Effect of Lime Application in Different Doses on Some Physical and Chemical Properties of Two Different Textured Soils

Öz

One of the most important features of the arid and semiarid land soils is that they generally have high lime content. Although the effects of lime on the soil properties are generally known. However, there are not enough studies about the effects of high lime content in this region. For this reason, this study was aimed to make a simulation with the inherent lime content of the soils in this area and investigate its effect on some soil physical and chemical properties in the two contrasting texture soils. Clay and sandy loam soils which were obtained from this area, were mixed with micronized lime at the rate of 0, 5, 10, and, 20% (w/w), and then incubated at field capacity under laboratory conditions for one month. After the incubation period, the effects of increasing doses of lime applications on soil bulk density (HA), particle density (TY), mean weight diameter (AOÇ), aggregate stability (AS), liquid limit, plastic limit, plasticity index, pH, electrical conductivity (EC) organic carbon content (OC), mineralization of organic carbon (KM), total nitrogen (TN) and C/N ratio were determined. Accordingly, when 20% lime applications in clayey and sandy loam soils compared to controls (20% lime application measurement / control measurement) pH rations increased at the same level (1.01), while CaCO3, C / N and HA rations increased at the ratio of 2.09-2.59, 1.17-1.20 and 1.06-1.02; TY, AOÇ, EC and liquid limit decreased at the ratio of 1.03-1.07, 1.41-1.36, 0.84-0.96 and 0.86-0.94, respectively. The effects of lime applications on other soil properties varied depending on the soil texture. Except for the lime content, the highest variability in soil properties compared to the control were in TN and AOÇ values in clay soil and in AS and AOÇ values in sandy loam soil.

Anahtar Kelimeler

Soil texture,, lime application,, soil physical and chemical properties

Proje Numarası

18201034

Kaynakça

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