Changes in soil biological and biochemical characteristics in a long-term field trial on a sub-tropical inceptisol

化学 肥料 农学 酸性磷酸酶 动物科学 土壤碳 土壤呼吸 土壤肥力 呼吸 土壤水分 生物 植物 生物化学 生态学
作者
Reginald Ebhin Masto,P. K. Chhonkar,Dhyan Singh,A. K. Patra
出处
期刊:Soil Biology & Biochemistry [Elsevier]
卷期号:38 (7): 1577-1582 被引量:228
标识
DOI:10.1016/j.soilbio.2005.11.012
摘要

Soil organic carbon (SOC), microbial biomass carbon (MBC), their ratio (MBC/SOC) which is also known as microbial quotient, soil respiration, dehydrogenase and phosphatase activities were evaluated in a long-term (31 years) field experiment involving fertility treatments (manure and inorganic fertilizers) and a maize (Zea mays L.)–wheat (Triticum aestivum L.)–cowpea (Vigna unguiculata L.) rotation at the Indian Agricultural Research Institute near New Delhi, India. Applying farmyard manure (FYM) plus NPK fertilizer significantly increased SOC (4.5–7.5 g kg−1), microbial biomass (124–291 mg kg−1) and microbial quotient from 2.88 to 3.87. Soil respiration, dehydrogenase and phosphatase activities were also increased by FYM applications. The MBC response to FYM+100% NPK compared to 100% NPK (193 vs. 291 mg kg−1) was much greater than that for soil respiration (6.24 vs. 6.93 μl O2 g−1 h−1) indicating a considerable portion of MBC in FYM plots was inactive. Dehydrogenase activity increased slightly as NPK rates were increased from 50% to 100%, but excessive fertilization (150% NPK) decreased it. Acid phosphatase activity (31.1 vs. 51.8 μg PNP g−1 h−1) was much lower than alkali phosphatase activity (289 vs. 366 μg PNP g−1 h−1) in all treatments. Phosphatase activity was influenced more by season or crop (e.g. tilling wheat residue) than fertilizer treatment, although both MBC and phosphatase activity were increased with optimum or balanced fertilization. SOC, MBC, soil respiration and acid phosphatase activity in control (no NPK, no manure) treatment was lower than uncultivated reference soil, and soil respiration was limiting at N alone or NP alone treatments.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
大幅提高文件上传限制,最高150M (2024-4-1)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
无花果应助无我采纳,获得10
1秒前
Kk发布了新的文献求助10
2秒前
orixero应助背后幻姬采纳,获得30
2秒前
tyl完成签到 ,获得积分10
2秒前
Zon完成签到,获得积分10
3秒前
希望天下0贩的0应助苏楠采纳,获得10
3秒前
Asdaf完成签到,获得积分10
4秒前
Lzy的羊发布了新的文献求助10
4秒前
Akim应助ying采纳,获得10
4秒前
mof完成签到 ,获得积分10
5秒前
Rdeohio关注了科研通微信公众号
6秒前
6秒前
6秒前
momo完成签到,获得积分10
7秒前
不安钢铁侠完成签到,获得积分10
7秒前
8秒前
包容的绝义完成签到,获得积分10
9秒前
柚子一一完成签到,获得积分10
10秒前
小王完成签到 ,获得积分10
10秒前
11秒前
11秒前
11秒前
12秒前
MADKAI发布了新的文献求助10
12秒前
李健的小迷弟应助ngyl采纳,获得20
13秒前
KatyPerry发布了新的文献求助10
13秒前
阿水发布了新的文献求助30
13秒前
领导范儿应助陌路孤星采纳,获得10
14秒前
科研通AI2S应助Hua采纳,获得10
14秒前
caisongliang完成签到,获得积分10
15秒前
脑洞疼应助爪人猫采纳,获得10
15秒前
zhangling发布了新的文献求助10
16秒前
17秒前
向前走发布了新的文献求助10
17秒前
哔哔鱼完成签到,获得积分10
17秒前
moci123完成签到 ,获得积分10
17秒前
shain发布了新的文献求助10
18秒前
18秒前
18秒前
wwj完成签到,获得积分10
20秒前
高分求助中
Evolution 10000
ISSN 2159-8274 EISSN 2159-8290 1000
Becoming: An Introduction to Jung's Concept of Individuation 600
Ore genesis in the Zambian Copperbelt with particular reference to the northern sector of the Chambishi basin 500
A new species of Coccus (Homoptera: Coccoidea) from Malawi 500
A new species of Velataspis (Hemiptera Coccoidea Diaspididae) from tea in Assam 500
PraxisRatgeber: Mantiden: Faszinierende Lauerjäger 500
热门求助领域 (近24小时)
化学 医学 生物 材料科学 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 基因 遗传学 催化作用 物理化学 免疫学 量子力学 细胞生物学
热门帖子
关注 科研通微信公众号,转发送积分 3160777
求助须知:如何正确求助?哪些是违规求助? 2811863
关于积分的说明 7893780
捐赠科研通 2470702
什么是DOI,文献DOI怎么找? 1315762
科研通“疑难数据库(出版商)”最低求助积分说明 631003
版权声明 602053