Combined Effect of Nutrient and Pest Managements on Substrate Utilization Pattern of Soil Microbial Population in Hybrid Rice Cropping SystemEnglish Full Text
LIAO MIN, XIE XIAOMEI, A. SUBHANI and S. KLOSENatural Resources Science Department, College of Environmental and Resources Sciences, Zhejiang University Hua Jia Chi Campus, Hangzhou 310029 (China)Institute of Soil Science, Faculty of Forest, Geography
Abstract: A field experiment was conducted to study the combined effect of nutrient and pest managements on soil biomass phospholipid contents, functional biodiversity and substrate utilization patterns of soil microbial populations in hybrid rice cropping system. The mineral N, P and K fertilizers (as urea, calcium superphosphate and KC1 respectively) were incorporated at 100, 25, and 100 kg ha-1, respectively, and the various pesticides were applied at the recommended rates. The results of the experiment demonstrated a decline in the microbial abundance and soil microbial biomass phospholipid contents with the advancement of crop growth, and significant changes in substrate utilization pattern of soil microbial population studied were observed with different management practices and at different growth stages. The principal component analysis (PCA) using all 95-carbon sources (BIOLOG plates) gave good differentiation among the treatments, indicating that they have different patterns of carbon utilization under different habitats. The data showed that diversity in microbial community continuously changed with the progression in crop stage, particularly at physiological maturity (PM) stage that was evident from the utilization of different carbon sources at various crop stages.
Keywords:
BIOLOG; nutrient; pest management; soil microbial population; substrate utilization pattern;
- Series:
(D) Agriculture; (A) Mathematics/ Physics/ Mechanics/ Astronomy
- Subject:
Biology; Fundamental Science of Agriculture; Agronomy
- Classification Code:
S154.3
- Mobile Reading
Read on your phone instantly
Step 1Scan QR Codes
"Mobile CNKI-CNKI Express" App
Step 2Open“CNKI Express”
and click the scan icon in the upper left corner of the homepage.
Step 3Scan QR Codes
Read this article on your phone.
- HTML
- CAJ Download
- PDF Download
Download the mobile appuse the app to scan this coderead the article.
Tips: Please download CAJViewer to view CAJ format full text.
Download: 42 Page: 219-228 Pagecount: 10 Size: 920k
Citation Network
Related Literature
- Similar Article
- Reader Recommendation
- Associated Author