The Effects of Four Organic Soil Conditioners on Aggregate Stability, Pore Size Distribution, and Respiration Activity in a Sandy Loam Soil

Shokrollah ASGHARI; Mohammad Reza NEYSHABOURI; Fariborz ABBASI; Nasser ALIASGHARZAD; Shahin OUSTAN

Makale detayları

The Effects of Four Organic Soil Conditioners on Aggregate Stability, Pore Size Distribution, and Respiration Activity in a Sandy Loam Soil

Yazarlar:

Shokrollah ASGHARI | Mohammad Reza NEYSHABOURI | Fariborz ABBASI | Nasser ALIASGHARZAD | Shahin OUSTAN

Yayıncı:

TUBITAK

Ana Başlıklar:

Tarım

Dergi:

Turkish Journal of Agriculture and Forestry 2009 Vol.33 Issue 1, pp.47-55

Belge Tipi:

Makale

Yayın Tarihi:

12/2008

Belge Dili:

İngilizce

Document ID (Org No.):

2000808532

Sıklık:

İki Aylık

eISSN:

1303-6173

pISSN:

1300-011X

Anahtar kelimeler:

Özet:

 

In coarse-textured soils, low water and nutrient holding capacity due to the high number of macropores limits crop growth. To minimize these limitations the application of various soil conditioners (SCs) has been extensively used in recent decades. The objective of this study was to investigate the influences of anionic polyacrylamide (PAM), cattle manure (M), vermicompost (VC), and biological sludge (BS) as organic SCs on mean weight diameter (MWD) of aggregates, water aggregate stability (WAS), pore size distribution (PRSD), and respiration activity (RA) of a sandy loam soil. PAM (0.25 and 0.5 g kg-1 of air-dried soil), M (12.5 and 25 g kg-1 of air-dried soil), VC (2.5 and 5 g kg-1 of air-dried soil), and BS (1.7 and 3.4 g kg-1 of air-dried soil) were mixed with soil and uniformly packed into large and small pots, and then incubated in a greenhouse with FC moisture content of 0.7-0.8 and temperature of 22 ± 4 °C for 6 months. Large pots were used for soil sampling in order to measure MWD, WAS, and PRSD at 7, 30, 60, 120, and 180 days. Respiration activity was measured at the same times in small pots. All SCs, irrespective of their concentrations, significantly (P.

 

In coarse-textured soils, low water and nutrient holding capacity due to the high number of macropores limits crop growth. To minimize these limitations the application of various soil conditioners (SCs) has been extensively used in recent decades. The objective of this study was to investigate the influences of anionic polyacrylamide (PAM), cattle manure (M), vermicompost (VC), and biological sludge (BS) as organic SCs on mean weight diameter (MWD) of aggregates, water aggregate stability (WAS), pore size distribution (PRSD), and respiration activity (RA) of a sandy loam soil. PAM (0.25 and 0.5 g kg-1 of air-dried soil), M (12.5 and 25 g kg-1 of air-dried soil), VC (2.5 and 5 g kg-1 of air-dried soil), and BS (1.7 and 3.4 g kg-1 of air-dried soil) were mixed with soil and uniformly packed into large and small pots, and then incubated in a greenhouse with FC moisture content of 0.7-0.8 and temperature of 22 ± 4 °C for 6 months. Large pots were used for soil sampling in order to measure MWD, WAS, and PRSD at 7, 30, 60, 120, and 180 days. Respiration activity was measured at the same times in small pots. All SCs, irrespective of their concentrations, significantly (P.

Makale detayları

The Effects of Four Organic Soil Conditioners on Aggregate Stability, Pore Size Distribution, and Respiration Activity in a Sandy Loam Soil

Yazarlar:

Shokrollah ASGHARI | Mohammad Reza NEYSHABOURI | Fariborz ABBASI | Nasser ALIASGHARZAD | Shahin OUSTAN

Yayıncı:

TUBITAK

Ana Başlıklar:

Tarım

Dergi:

Turkish Journal of Agriculture and Forestry 2009 Vol.33 Issue 1, pp.47-55

Belge Tipi:

Makale

Yayın Tarihi:

12/2008

Belge Dili:

İngilizce

Document ID (Org No.):

2000808532

Sıklık:

İki Aylık

eISSN:

1303-6173

pISSN:

1300-011X

Soil conditioner

mean weight diameter

pore size distribution

soil respiration

water aggregate stability

Sayı

Makale detayları

The Effects of Four Organic Soil Conditioners on Aggregate Stability, Pore Size Distribution, and Respiration Activity in a Sandy Loam Soil

Yazarlar: Shokrollah ASGHARI | Mohammad Reza NEYSHABOURI | Fariborz ABBASI | Nasser ALIASGHARZAD | Shahin OUSTAN

Yayıncı: TUBITAK

Ana Başlıklar: Tarım

Dergi: Turkish Journal of Agriculture and Forestry 2009 Vol.33 Issue 1, pp.47-55

Belge Tipi: Makale

Yayın Tarihi: 12/2008

Belge Dili: İngilizce

Document ID (Org No.): 2000808532

Sıklık: İki Aylık

eISSN: 1303-6173

pISSN: 1300-011X

Soil conditioner

mean weight diameter

pore size distribution

soil respiration

water aggregate stability

Sayı

Yazarlar:

Shokrollah ASGHARI | Mohammad Reza NEYSHABOURI | Fariborz ABBASI | Nasser ALIASGHARZAD | Shahin OUSTAN

Yayıncı:

TUBITAK

Ana Başlıklar:

Tarım

Dergi:

Turkish Journal of Agriculture and Forestry 2009 Vol.33 Issue 1, pp.47-55

Belge Tipi:

Makale

Yayın Tarihi:

12/2008

Belge Dili:

İngilizce

Document ID (Org No.):

2000808532

Sıklık:

İki Aylık

eISSN:

1303-6173

pISSN:

1300-011X