The Application of Soil Conditioner (CMC) in Soil Improvement of New Cultivating Farmland

doi:10.11924/j.issn.1000-6850.casb2022-0601

Abstract

Abstract:

Exploring the effects of different application rates of polymer materials on soil fertility in new cultivating farmland is helpful to provide a scientific basis for rapid maturation of new farmland. Bermudagrass was used as the research material and a pot experiment was conducted to explore the effects of sodium carboxymethyl cellulose (CMC) (0.04%, 0.08%, 0.12%, 0.16% and 0.20%) mixed with vermicompost and compound biological inoculants on plant growth and soil nutrients in new cultivating farmland. The results showed that the overground part and root biomass of bermudagrass were significantly increased under different CMC treatments, which were 33.8-37.5 and 5.0-5.9 times than those of CK, respectively, and the root-shoot ratio was decreased by 84.1%-86.3%. The biomass of bermudagrass showed the highest value in 0.16% CMC treatment. The CMC treatments had significant effect on soil nutrient content, the content of soil organic matter and total phosphorus showed the maximum value in 0.16% CMC treatment, which were 187.9% and 19.2% higher than those of CK, respectively. The >0.25 mm water-stable aggregate content was significantly increased by 24.2%-138.9% in CMC treatment, and the highest value was found in 0.20% CMC treatment. In conclusion, the 0.16% CMC treatment had the best effect on the growth promotion of bermudagrass and the increase of soil organic matter and total phosphorus contents, while the best effect on the improvement of soil water-stable aggregate was achieved in 0.20% CMC treatment.

Key words: sodium carboxymethyl cellulose, new cultivating farmland, bermudagrass, soil nutrients, soil water-stable aggregate

LI Ting, ZHU Li'an, LIN Zi, SHAO Shegang, NI Dong, LIN Lanwen. The Application of Soil Conditioner (CMC) in Soil Improvement of New Cultivating Farmland[J]. Chinese Agricultural Science Bulletin, 2023, 39(21): 88-93.

Figures/Tables 5

References 29

[1]	李云路, 崔文刚, 陆清平, 等. 山区耕地破碎化时空演化分析——以贵州省为例[J]. 水土保持研究, 2022, 29(5):301-309.
[2]	盖兆雪, 詹汶羲, 王洪彦, 等. 耕地利用转型碳排放时空分异特征与形成机理研究[J]. 农业机械学报, 2022, 53(7):187-196.
[3]	吴海中, 田晓四, 张乐勤. 近40a安徽省耕地非农化时空分布特征及扩散路径[J/OL]. 中国农业资源与区划, http://kns.cnki.net/kcms/detail/11.3513.S.20220517.1122.004.html,2022-07-14.
[4]	聂艳, 彭雅婷, 于婧, 等. 基于量子遗传投影寻踪模型的湖北省耕地生态安全评价[J]. 经济地理, 2015, 35(11):172-178.
[5]	何新莹, 聂艳, 王朴, 等. 基于改进灰靶模型的耕地质量评价方法与实证[J/OL]. 土壤学报, https://kns.cnki.net/kcms/detail/32.1119.P.20220423.1755.006.html,2022-07-14.
[6]	曲成闯, 陈效民, 张佳宝, 等. 基于木本泥炭快速构建红壤新垦耕地优质耕作层技术与效果[J]. 水土保持学报, 2018, 32(6):134-140.
[7]	王忠, 施鸿鑫, 楼玲, 等. 不同培肥措施对新垦耕地红壤肥力和作物产量的影响[J]. 土壤通报, 2019, 50(6):1378-1383.
[8]	沈建国, 王忠, 李丹, 等. 不同有机物投入对新垦耕地红壤肥力及蔬菜生长的影响[J]. 水土保持通报, 2019, 39(1):85-90.
[9]	严建立, 章明奎, 王道泽. 不同调理剂改良低丘新垦耕地土壤物理性状的效果[J]. 中国农学通报, 2021, 37(2):67-73. doi: 10.11924/j.issn.1000-6850.casb20200300198
[10]	崔丙健, 崔二苹, 刘春成, 等. 土壤改良剂对再生水滴灌根际土壤菌群多样性及病原菌和抗生素抗性基因丰度的影响[J/OL]. 环境科学, https://doi.org/10.13227/j.hjkx.202111267,2022-07-14.
[11]	刘娇娴, 崔骏, 刘洪宝, 等. 土壤改良剂改良酸化土壤的研究进展[J]. 环境工程技术学报, 2022, 12(1):173-184.
[12]	聂天宏, 杨兴, 李永春, 等. 高分子材料在土壤物理性质改良方面的研究进展[J]. 土壤通报, 2020, 51(6):1504-1512.
[13]	单鱼洋, 马晨光, 王全九, 等. 羧甲基纤维素钠对壤砂土水分运动及水力参数的影响[J]. 土壤学报, 2022, 59(5):1349-1358.
[14]	曾晓舵, 梁玉清, 林兰稳, 等. 羧甲基纤维素钠对酸性土壤改良及水稻生长效应[J]. 广东农业科学, 2009(11):69-70.
[15]	张双兰, 邱朝霞, 邱海霞. 含蒙脱土和多糖的保水剂对高羊茅品种可奇思种子萌发及生长的影响[J]. 草原与草坪, 2013, 33(6):41-46.
[16]	吴军虎, 陶汪海, 王海洋, 等. 羧甲基纤维素钠对土壤团粒结构及水分运动特性的影响[J]. 农业工程学报, 2015, 31(2):117-123.
[17]	鲁如坤. 土壤农业化学分析方法[M]. 北京: 中国农业科技出版社, 1999:106-195.
[18]	ELLIOTT E T. Aggregate structure and carbon, nitrogen, and phosphorus in native and cultivated soils[J]. Soil science society of America journal, 1986, 50(3):627-633. doi: 10.2136/sssaj1986.03615995005000030017x URL
[19]	杨世琦, 邢磊, 刘宏元, 等. 羧甲基纤维素钠对黄土高原新造耕地土壤改良效果[J]. 中国农业大学学报, 2021, 26(4):185-191.
[20]	邱朝霞, 张若冰, 邱海霞, 等. 含蒙脱土和多糖的保水剂对土壤物理性质的影响[J]. 中国土壤与肥料, 2013(6):11-16.
[21]	哈丽代姆·居麦, 宁松瑞, 王全九, 等. 施加PAM与CMC对土壤水分入渗与蒸发特征的影响[J]. 水土保持学报, 2020, 34(1):121-127,134.
[22]	张磊, 张根林, 鲁建江, 等. 羧甲基纤维素钠-改性膨润土复合凝胶的制备及缓释性能[J]. 西北农业学报, 2012, 21(1):161-164.
[23]	刘占锋, 傅伯杰, 刘国华, 等. 土壤质量与土壤质量指标及其评价[J]. 生态学报, 2006, 26(3):901-913.
[24]	刘宏元, 周志花, 赵光昕, 等. 改性纤维素对旱稻萌发和旱地土壤性质的影响[J/OL]. 中国农业科技导报, https://doi.org/10.13304/j.nykjdb.2021.0850, 2022-07-14.
[25]	杨雪芹, 王旭东. 羧甲基纤维素钠与土壤复合后对吸附磷素的影响[J]. 干旱地区农业研究, 2008(6):97-100.
[26]	曹丽花, 赵世伟, 梁向锋, 等. PAM对黄土高原主要土壤类型水稳性团聚体的改良效果及机理研究[J]. 农业工程学报, 2008(1):45-49.
[27]	廖抒蔚, 孔维凤, 梁嫦娥, 等. 湿地土壤水稳性团聚体结构和稳定性研究进展[J]. 湿地科学, 2021, 19(5):623-628.
[28]	洪宗文, 温娅檬, 刘一霖, 等. 川西亚高山不同彩叶林土壤水稳性团聚体特征[J]. 应用与环境生物学报, 2021, 27(3):601-607.
[29]	杨雪芹, 王旭东. 结构改良剂对土娄土团聚体分布的影响[J]. 江苏农业科学, 2011(1):412-413.

处理	有机质/(g/kg)	全氮/(g/kg)	全磷/(g/kg)	全钾/(g/kg)	碱解氮/(mg/kg)	速效磷/(mg/kg)	速效钾/(mg/kg)
CK	3.36±0.18d	0.059±0.01a	0.83±0.00c	2.15±0.13a	7.70±2.57dc	5.23±1.73bc	90.61±4.24a
单施肥	3.75±0.22cd	0.057±0.01a	0.84±0.02bc	2.35±0.08a	7.35±2.86dc	3.08±0.49c	53.86±0.71b
0.04%CMC	3.75±0.05cd	0.040±0.02a	0.95±0.01abc	2.39±0.12a	30.10±1.01a	8.67±0.20ab	24.05±1.47d
0.08%CMC	4.49±0.33cd	0.055±0.02a	0.96±0.03abc	2.22±0.05a	18.32±1.63b	9.12±0.23ab	31.20±1.06cd
0.12%CMC	5.23±0.50c	0.052±0.01a	0.95±0.03abc	2.08±0.21a	25.55±2.83ab	11.36±1.00a	23.24±1.87d
0.16%CMC	9.67±0.16a	0.064±0.01a	0.99±0.03a	1.95±0.36a	24.85±1.62ab	9.81±0.20a	20.79±0.71d
0.20%CMC	7.74±0.72b	0.038±0.02a	0.98±0.05ab	2.12±0.06a	23.10±1.01ab	10.69±0.55a	37.33±3.18c

处理	有机质/(g/kg)	全氮/(g/kg)	全磷/(g/kg)	全钾/(g/kg)	碱解氮/(mg/kg)	速效磷/(mg/kg)	速效钾/(mg/kg)
CK	3.36±0.18d	0.059±0.01a	0.83±0.00c	2.15±0.13a	7.70±2.57dc	5.23±1.73bc	90.61±4.24a
单施肥	3.75±0.22cd	0.057±0.01a	0.84±0.02bc	2.35±0.08a	7.35±2.86dc	3.08±0.49c	53.86±0.71b
0.04%CMC	3.75±0.05cd	0.040±0.02a	0.95±0.01abc	2.39±0.12a	30.10±1.01a	8.67±0.20ab	24.05±1.47d
0.08%CMC	4.49±0.33cd	0.055±0.02a	0.96±0.03abc	2.22±0.05a	18.32±1.63b	9.12±0.23ab	31.20±1.06cd
0.12%CMC	5.23±0.50c	0.052±0.01a	0.95±0.03abc	2.08±0.21a	25.55±2.83ab	11.36±1.00a	23.24±1.87d
0.16%CMC	9.67±0.16a	0.064±0.01a	0.99±0.03a	1.95±0.36a	24.85±1.62ab	9.81±0.20a	20.79±0.71d
0.20%CMC	7.74±0.72b	0.038±0.02a	0.98±0.05ab	2.12±0.06a	23.10±1.01ab	10.69±0.55a	37.33±3.18c

粒径/mm	各级团聚体百分含量/%
粒径/mm	CK	单施肥	0.04% CMC	0.08% CMC	0.12% CMC	0.16% CMC	0.20% CMC
>5	0.00±0.00b	0.00±0.00b	0.93±0.09a	0.10±0.10b	0.10±0.06b	0.07±0.07b	0.67±0.17a
5~3	0.00±0.00d	1.07±0.09bc	0.13±0.09d	2.13±0.26a	0.47±0.15cd	1.63±0.20ab	1.37±0.12b
3~2	0.70±0.17bc	0.13±0.09c	0.27±0.18bc	0.67±0.09bc	0.23±0.09c	10.80±0.32a	1.07±0.12b
2~1	2.07±0.24d	4.77±0.43c	5.20±0.44c	10.33±0.38b	5.33±0.49c	0.67±0.15d	13.83±0.69a
1~0.5	18.40±0.38cd	19.27±0.49bc	18.77±0.41bc	18.90±0.96bc	15.97±0.49d	21.40±0.38b	31.73±0.55a
0.5~0.25	16.30±0.67e	17.53±1.39e	21.23±0.50d	18.40±0.50de	32.30±0.38b	26.17±0.62c	40.83±0.75a
<0.25	62.53±0.81a	57.23±0.95b	53.50±1.13bc	49.50±1.76cd	45.63±0.03d	39.27±0.24e	10.50±0.46f

粒径/mm	各级团聚体百分含量/%
粒径/mm	CK	单施肥	0.04% CMC	0.08% CMC	0.12% CMC	0.16% CMC	0.20% CMC
>5	0.00±0.00b	0.00±0.00b	0.93±0.09a	0.10±0.10b	0.10±0.06b	0.07±0.07b	0.67±0.17a
5~3	0.00±0.00d	1.07±0.09bc	0.13±0.09d	2.13±0.26a	0.47±0.15cd	1.63±0.20ab	1.37±0.12b
3~2	0.70±0.17bc	0.13±0.09c	0.27±0.18bc	0.67±0.09bc	0.23±0.09c	10.80±0.32a	1.07±0.12b
2~1	2.07±0.24d	4.77±0.43c	5.20±0.44c	10.33±0.38b	5.33±0.49c	0.67±0.15d	13.83±0.69a
1~0.5	18.40±0.38cd	19.27±0.49bc	18.77±0.41bc	18.90±0.96bc	15.97±0.49d	21.40±0.38b	31.73±0.55a
0.5~0.25	16.30±0.67e	17.53±1.39e	21.23±0.50d	18.40±0.50de	32.30±0.38b	26.17±0.62c	40.83±0.75a
<0.25	62.53±0.81a	57.23±0.95b	53.50±1.13bc	49.50±1.76cd	45.63±0.03d	39.27±0.24e	10.50±0.46f