Effects of Biochar on Soil Conditions and Rice Growth in Ningxia Irrigated Area under Optimized Nitrogen Application Conditions

doi:10.3969/j.issn.1000-6362.2019.05.007

Abstract

Abstract:

Taking rice variety Ningjing43 as materials, the cracking test was carried out under nitrogen and biochar addition condition in Ningxia irrigation area. None nitrogen (0kg·ha-1), optimization of nitrogen (240kg·ha-1), routine nitrogen (300kg·ha-1) and three levels of biochar addition including C0(0kg·ha-1), C1(4500kg·ha-1), C2(9000kg·ha-1), C3(13500kg·ha-1), 12 treatments in total, were designed. Soil samples were collected in harvest stage of rice by soil-drills to determine basic properties. Plants samples were randomly selected in tillering stage, jointing stage and filling stage to measure the growth index such as root length, root surface area, root tips and root-shoot ratio, aboveground biomass. Rice production was tested in harvest stage through five-point sampling method. The 3 measurements aimed to study the effect of adding biochar under different nitrogen applications on soil conditions and rice growth in Ningxia irrigation area. The main results were as followed, (1) application of nitrogen fertilizer did not improve soil nutrient status, while biochar addition increased soil nutrient content. (2) Application of nitrogen fertilizer and addition of biochar both promoted root growth, and there was no significant difference between optimized nitrogen application and conventional nitrogen application. (3) There was no significant difference in rice yield between optimized nitrogen application and conventional nitrogen application, and biochar addition increased rice yield. 9000kg·ha-1 of biochar addition in optimized nitrogen application increased the theoretical yield by 15.5%. Therefore, the addition of biochar improved soil nutrient status, promoted rice growth, and increased rice yield. And moreover, biochar addition can be applied to Ningxia rice fields in combination with nitrogen fertilizer reduction.

Key words: Nitrogen, Biochar, Soil condition, Rice roots, Rice production

GAO Yue, ZHANG Ai-ping, DU Zhang-liu, LIU Ru-liang, HONG Yu, HU Shi-min, YANG Zheng-li. Effects of Biochar on Soil Conditions and Rice Growth in Ningxia Irrigated Area under Optimized Nitrogen Application Conditions[J]. Chinese Journal of Agrometeorology, 2019, 40(05): 327-336.

References

[1] 巨晓棠,谷保静.我国农田氮肥施用现状?问题及趋势[J].植物营养与肥料学报,2014,20(4):783-795. Ju X T,Gu B J.Status-quo,problem and trend of nitrogen fertilization in China[J].Journal of Plant Nutrition and Fertilizer,2014,20(4):783-795.(in Chinese) [2] 张福锁,崔振岭,王激清,等.中国土壤和植物养分管理现状与改进策略[J].植物学通报,2007,24(6):687-694. Zhang F S,Cui Z L,Wang J Q,et al.Current status of soil and plant nutrient management in China and improvement strategies[J].Chinese Bulletin of Botany,2007,24(6):687-694. (in Chinese) [3] 乔俊,颜廷梅,薛峰,等.太湖地区稻田不同轮作制度下的氮肥减量研究[J].中国生态农业学报,2011,19(1):24-31. Qiao J,Yan T M,Xue F,et al.Reduction of nitrogen fertilizer application under different crop rotation systems in paddy fields of Taihu Area[J].Chinese Journal of Eco-agriculture, 2011,19(1):24-31.(in Chinese) [4] 刘红江,郭智,郑建初,等.太湖地区氮肥减量对水稻产量和氮素流失的影响[J].生态学杂志,2017,36(3):713-718. Liu H J,Guo Z,Zheng J C,et al.Effects of nitrogen reduction on rice yield and nitrogen loss in Taihu area[J].Chinese Journal of Ecology,2017,36(3):713-718.(in Chinese) [5] 赵士诚,裴雪霞,何萍,等.氮肥减量后移对土壤氮素供应和夏玉米氮素吸收利用的影响[J].植物营养与肥料学报,2010, 16(2):492-497. Zhao S C,Pei X X,He P,et al.Effects of reducing and postponing nitrogen application on soil N supply,plant N uptake and utilization of summer maize[J].Plant Nutition And Fertilizer,2010,16(2):492-497.(in Chinese) [6] Glaser B,Haumaier L,Guggenberger G,et al.The 'Terra Preta' phenomenon:a model for sustainable agriculture in the humid tropics[J].Naturwissenschaften,2001,88(1):37-41. [7] Glaser B,Lehmann J,Zech W.Ameliorating physical and chemical properties of highly weathered soils in the tropics with charcoal:a review[J].Biology and Fertility of Soils,2002,35(4):219-230. [8] Chan K Y,Van Zweieten L,Meszaros I,et al.Agronomic values of greenwaste biochar as a soil amendment[J].Australian Journal of Soil Research,2007,45(8):629-634. [9] Zheng H,Wang Z Y,Deng X,et al.Impacts of adding biochar on nitrogen retention and bioavailability in agricultural soil[J].Geoderma,2013,206:32-39. [10] Bruun E W,Petersen C T,Hansen E,et al.Biochar amendment to coarse sandy subsoil improves root growth and increases water retention[J].Soil Use and Management,2014,30(1): 109-118. [11] 程效义,孟军,黄玉威,等.生物炭对玉米根系生长和氮素吸收及产量的影响[J].沈阳农业大学学报,2016,47(2): 218-223. Cheng X Y,Meng J,Huang Y W,et al.Effect of biochar on root growth, absorption of nitrogen and maize yield[J].Journal of Shenyang Agricultural University,2016, 47(2):218-223.(in Chinese) [12] 孟繁昊,高聚林,于晓芳,等.生物炭配施氮肥改善表层土壤生物化学性状研究[J].植物营养与肥料学报,2018,24(5): 1214-1226. Meng F H,Gao J L,Yu X F,et al.Inprovent of biochemical property of surface soil by combined application of biochar with nitrogen fertilizer[J].Plant Nutrition and Fertilizer Science,2018,24(5):1214-1226.(in Chinese) [13] Steiner C,Teixeira J,Nehls T,et al.Long term effects of manure,charcoal and mineral fertilization on crop production and fertility on a highly weathered Central Amazonian upland soil[J].Plant & Soil,2007,291(1/2):275-290. [14] 鲍士旦.土壤农化分析(3版) [M].北京:中国农业出版社, 2000. Bao S D.Soil agrochemical analysis(3)[M].Beijing:China Agriculture Press,2000.(in Chinese) [15] 鄂玉江,戴俊英,顾慰连.玉米根系的生长规律及其与产量关系的研究Ⅰ:玉米根系生长和吸收能力与地上部分的关系[J].作物学报,1988,(2):149-154. E Y J,Dai J Y,Gu W L.Studies on the relationship between root growth and yield in maize Ⅰ:ralationships betwenn the growth and absorption ability of te roots and the growth and development of the above-ground parts of maize[J].Acta Agronomica Sinica,1988,(2):149-154.(in Chinese) [16] 赵亚南,宿敏敏,吕阳,等.减量施肥下小麦产量?肥料利用率和土壤养分平衡[J].植物营养与肥料学报,2017,23(4): 864-873. Zhao Y N,Su M M,Lv Y,et al.Wheat yield,nutrient use efficiencies and soil nutrient balance under reduced fertilizer rate[J].Journal of Plant Nutrition and Fertilizer,2017,23(4): 864-873.(in Chinese) [17] 肖建南,张爱平,刘汝亮,等.生物炭施用对稻田氮磷肥流失的影响[J].中国农业气象,2017,38(3):163-171. Xiao J N,Zhang A P,Liu R L,et al.Effects of biochar application on the losses of nitrogen and phosphorus in surface water of paddy field[J].Chinese Journal of Agrometeorology,2017,38(3):163-171.(in Chinese) [18] Qiao J,Yang Y,Yan T,et al.Nitrogen fertilizer reduction in rice production for two consecutive years in the Taihu Lake area[J].Agriculture Ecosystems & Environment,2012,46(1): 103-112. [19] 马星竹,周宝库,郝小雨,等.不同氮肥用量对春玉米幼苗生长和根系形态的影响[J].黑龙江农业科学,2016,(7):27-31. Ma X Z,Zhou B K,Hao X Y,et al.Effects of different amounts of nitrogen fertilizer on growth and root morphological traits of spring maize seedlings[J]. Heilongjiang Agricultural Sciences,2016,(7):27-31.(in Chinese) [20] 姜琳琳,韩立思,韩晓日,等.氮素对玉米幼苗生长?根系形态及氮素吸收利用效率的影响[J].植物营养与肥料学报,2011,17(1):247-253. Jiang L L,Han L S,Han X R,et al.Effects of nitrogen on growth,root morphological traits,nitrogen uptake and utilization efficiency of maize seedlings[J].Plant Nutrition and Fertilizer Science,2011,17(1):247-253.(in Chinese) [21] 刘婷婷,樊明寿,李春俭.不同氮效率玉米自交系对氮素供应的反应[J].华北农学报,2005,(3):83-86. Liu T T,Fan M S,Li C J.Responses of maize inbred lines with contrasting N efficiency to different nitrogen supplies [J].Acta Agticulture Boreali-sinica,2005,(3):83-86.(in Chinese) [22] 武玉,徐刚,吕迎春,等.生物炭对土壤理化性质影响的研究进展[J].地球科学进展,2014,29(1):68-79. Wu Y,Xu G,Lv Y C,et al.Effects of biochar amendment on soil physical and chemical properties:current status and knowledgegaps[J].Advances in Earth Science,2014,29(1): 68-79.(in Chinese) [23] 房彬,李心清,赵斌,等.生物炭对旱作农田土壤理化性质及作物产量的影响[J].生态环境学报,2014,23(8):1292-1297. Fang B,Li X Q,Zhao B,et al.Influence of biochar on soil physical and chemical properties and crop yields in rainfed field[J].Ecology and Environmental Sciences,2014,23(8): 1292-1297.(in Chinese) [24] 王月玲,耿增超,王强,等.生物炭对塿土土壤温室气体及土壤理化性质的影响[J].环境科学,2016,37(9):3634-3641. Wang Y L,Geng Z C,Wang Q,et al.Influence of biochar on greenhouse gases emissions and physico-chemical properties of loess soil[J].Environmental Science,2016,37(9):3634- 3641.(in Chinese) [25] Lehmann J,Silva J P,Steiner C,et al.Nutrient availability and leaching in an archaeological anthrosol and a ferralsol of the central amazon basin:fertilizer,manure and charcoal amendments[J].Plant and Soil,2003,249(2):343-357. [26] Gul S,Whalen J K,Thomas B W,et al.Physico-chemical properties and microbial responses in biochar-amended soils:mechanisms and future directions[J].Agriculture Ecosystems & Environment,2015,206:46-59. [27] Cantrell K B,Hunt P G,Uchimiya M,et al.Impact of pyrolysis temperature and manure source on physicochemical characteristics of biochar[J].Bioresource Technology,2012, 107:419-428. [28] Kimetu J M,Lehmann J.Stability and stabilisation of biochar and green manure in soil with different organic carbon contents[J].Soil Research,2010,48(7):577-585. [29] Yao F X,Arbestain M C,Virgel S,et al.Simulated geochemical weathering of a mineral ash-rich biochar in a modified Soxhlet reactor[J].Chemosphere,2010,80(7):724-732. [30] 张伟明,孟军,王嘉宇,等.生物炭对水稻根系形态与生理特性及产量的影响[J].作物学报,2013,39(8):1445-1451. Zhang W M,Meng J,Wang J Y,et al.Effect of biochar on root morphological and physiological characteristics and yield in rice[J].Acta Agronomica Sinica,2013,39(8):1445- 1451.(in Chinese) [31] Olmo M,Villar R,Salazar P,et al.Changes in soil nutrient availability explain biochar’s impact on wheat root development[J].Plant and Soil,2016,399(1-2):333-343.