Eklenen Organik Maddenin Toprak Sıkışmasına Etkilerinin Araştırılması

Year 2018, Volume: 28 Number: 2, 175 - 185, 29.06.2018

Gholamhossein Shahgholı , Javad Janatkhah

https://doi.org/10.29133/yyutbd.348036

Cited By: 5

Abstract

Son on yılda
çiftçilerin yaşadığı sorunlardan biri toprak sıkıştırmasıdır. Toprak dokusu,
nem, toprak organik maddesi, makine ağırlığı ve makine trafiği gibi farklı
parametreler toprağın sıkışmasını etkiler. Bu parametreler toprağın sıkışmasını
önleyecek şekilde yönetilmelidir. Bu araştırmada, kritik nem altında nem içeriğinde
standart Proctor testi kullanılarak, tınlı ve kil tın topraklarda sıkışma
üzerine 0, 2, 4, 6 ve 8 seviyelerinde koyun gübresi ve vermikompostun etkisi
araştırılmıştır. Testler, tam şansa bağlı faktöriyel deneme deseninde 3
tekerürlü olarak düzenlenmiştir. 
İstatistiksel analiz için SPSS.17 yazılımı kullanılmıştır. Sonuçlar, her
iki organik maddenin eklenen seviyelerinin de toprak sıkışmasının azaltılması
üzerinde önemli etkileri olduğunu göstermiştir. Organik maddenin %8
uygulamasında, toprak sıkışması % 9.25 oranında azalmıştır. Toprağa organik
madde ilavesi, kritik nemi doğrusal olarak azaltmıştır. Organik maddenin %6 ve %8
civarında uygulamalarında, tınlı toprakla karşılaştırıldığında, killi tın
toprak üzerinde, daha etkili olmuştur. Toprak sıkışmasının azaltılmasında %2 ve
4 gibi düşük seviyelerde vermikompost, koyun gübresinden daha etkilidir;
Bununla birlikte, %6 ve % 8'lik seviyelerde koyun gübresi, daha etkili
olmuştur. En az kütle yoğunluğu (1,48 gr/cm³), organik madde
içermeyen işlemlere kıyasla toprak sıkışmasını %10 azaltan %8 oranında organik
madde ilavesiyle elde edilmiştir.

Keywords

Toprak Yoğunluğu, Vermikompost, Gübre, Proctor Testi, Vermikompost

Investigation of The Effects of Organic Matter Application on Soil Compaction

Abstract

One of the problems,
farmers suffer in recent decade, is soil
compaction. Different parameters such as soil texture, moisture, soil organic
matter, and machine weight and machine traffic affect soil compaction. These
parameters should be managed to prevent soil compaction. In this research, the
effects of sheep manure and vermicompost with 0, 2, 4, 6 and 8% levels were
investigated on compaction of loam and clay loam soils using standard Proctor
test at moisture content under the critical moisture. Tests were arranged as a
complete randomized factorial experimental design with three replications. The
SPSS.17 software was used for statistical analysis. Results showed that all
application levels of both organic matters had significant effects on decrease
in soil compaction. Application of 8% organic matter decreased soil compaction
by 9.25%. Organic matter application into the soil decreased critical moisture
linearly. Organic matter application was more effective on clay loam soil than
loam soil, especially at higher levels of 6 and 8%. At lower application levels
of 2 and 4%, vermicompost was more effective on soil compaction than manure;
however at higher level of 6 and 8 % , manure was more effective in decreasing
soil compaction. The lowest bulk density of 1.48 gr cm^-3 was
obtained with adding 8% of organic matter which decreased soil compaction by
10% in comparison with the treatment without organic matter.

Keywords

Soil Density, Manure, Vermicompost, Proctor Test, Vermicompost

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