Journal of Water and Soil Science
علوم آب و خاک
jwss
Agriculture
http://jstnar.iut.ac.ir
0
user
2476-3594
2476-5554
10.47176/jwss
fa
jalali
1386
10
1
gregorian
2008
1
1
11
42
online
1
fulltext
fa
سینتیک معدنی شدن نیتروژن در یک خاک تیمار شده با کمپوست، ورمیکمپوست و کود دامی
Kinetics of Nitrogen Mineralization in Soils Amended with Compost, Vermicompost and Cattle Manure
عمومی
Ggeneral
پژوهشي
Research
<p> Understanding nitrogen mineralization from different organic sources should be a key factor in developing efficient prediction of the need for nitrogen fertilization with minimal negative environmental impact. In order to investigate nitrogen mineralization rate in soils amended with compost, vermicompost and cattle manure, an experiment was done as factorial in a randomized complete block design in three replications. Four treatments (compost, vermicompost, cattle manure and soil alone), two temperature levels (8 and 25 <sup>0</sup>C) and two moisture levels (50% and 85% FC) were used for the 90 - day incubation study. Ammonium and nitrate were measured by spectrophotometer method. Results indicated that the mixed first-and zero-order kinetics model is the best model for our data. Cattle manure treatment had the highest N<sub>min</sub> at 25 <sup>0</sup>C (87.78 mgN/kg equal to 14.54% N<sub>total</sub>) and the least value (23.62 mgN/kg equal to 4.62% N<sub>total</sub>) was obtained for the compost treatment at 8 <sup>0</sup>C. N<sub>0</sub>k (nitrogen availability index) for treatments was in the following order: Cattle manure>Vermicompost >Compost. With increasing the temperature and moisture, N mineralization increased. Also N<sub>min</sub> positively correlated with N<sub>0</sub> (r =0.583*), and N<sub>0</sub>k (r =0.834**). </p>
معدنی شدن نیتروژن، مدلهای سینتیکی، کمپوست، ورمیکمپوست، کود دامی
Nitrogen mineralization, Kinetic models, Compost, Vermicompost, Cattle manure
405
414
http://jstnar.iut.ac.ir/browse.php?a_code=A-10-2-795&slc_lang=fa&sid=1
S.
Soodaee Mashaee
صاحب
سودایی مشاعی
00031947532846005269
00031947532846005269
Yes
N.
Aliasgharzade
ناصر
علیاصغرزاده
00031947532846005270
00031947532846005270
No
S.h.
Ostan
شاهین
اوستان
00031947532846005271
00031947532846005271
No