Responses of Aboveground Biomass to Fertilizing and Perforating in Stipa baicalensis Clipping Pasture

doi:10.11733/j.issn.1007-0435.2018.02.009

Acta Agrestia Sinica ›› 2018, Vol. 26 ›› Issue (2): 330-340.DOI: 10.11733/j.issn.1007-0435.2018.02.009

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Responses of Aboveground Biomass to Fertilizing and Perforating in Stipa baicalensis Clipping Pasture

LU Shi-jie¹, ZHANG Shuang¹, LIU Hong-mei², WEI Zhi-jun¹, BAI Yu-ting¹, YAN Rui-rui³, XIN Xiao-ping³, WU renqiqige⁴

1. Inner Mongolia Agricultural University, Hohhot, Inner Mongolia 010018, China;
2. Inner Mongolia Academy of Forestry Science, Hohhot, Inner Mongolia 010010, China;
3. Institute of Agricultural Resources and Regional Planning of CAAS, Beijing 100081, China;
4. Hulunbuir college, Hailaer, Inner Mongolia 010018, China

Received:2017-10-30 Revised:2018-04-22 Online:2018-04-15 Published:2018-07-05

贝加尔针茅割草地地上生物量对施肥及打孔的响应

吕世杰¹, 张爽¹, 刘红梅², 卫智军¹, 白玉婷¹, 闫瑞瑞³, 辛晓平³, 乌仁其其格⁴

1. 内蒙古农业大学, 内蒙古呼和浩特 010018;
2. 内蒙古自治区林业科学研究院, 内蒙古呼和浩特 010010;
3. 中国农业科学院农业资源与农业区划研究所, 北京 100081;
4. 呼伦贝尔学院, 内蒙古呼伦贝尔 010018

通讯作者: 卫智军
作者简介:吕世杰(1978-),男,讲师,主要从事应用统计及数量生态研究,E-mail:lshj123@163.com
基金资助:
国家重点研发计划（2016YFC0500603）；公益性行业（农业）科研专项（201303060）资助

Abstract

Abstract:

In Hulunber grassland, because of its relatively fixed time and space, grassland has been severely degraded after successive years of grass clipping. To protect the Hulunbeier grassland and promote the protection of the grassland ecological environment and the sustainable development of animal husbandry, the "3414" soil and fertilizer formula test was used with application of nitrogen (N), phosphorus (P) and potassium (K) fertilizer as the experimental factors, combined with descriptive statistics, comparative analysis, regression analysis and other analytical methods, obtained the following results. Single factor N fertilizers were found to have a significant effect on biomass in non-perforated areas, and there was an optimal fertilization level (fertilizer amount of 105 kg·hm^-2) and the highest theoretical grassland biomass (55.66 g·m^-2). In the two factors, the combined effect of N, P and K in the perforated area was higher than that in the non-perforated area, indicating that drilling and fertilization could improve the effect of fertilization on grassland biomass, which can promote the improvement of grassland biomass. The results indicated the "3414"can be used in natural clipping pasture, and need to increase the repeated processing or repeated samples to ensure that the concentrated data reflected the fertilization effect. Based on the comprehensive information of N, P and K, the corresponding non-perforated areas were 246.14 kg·hm^-2, 246.75 kg·hm^-2, and 8.68 kg·hm^-2, respectively. The maximum of biomass yield was 62.09 g·m^-2. The optimum combination of fertilizers in the hole-punching area was 231.50 kg·hm^-2 for N, 374.50 kg·hm^-2 for P and 25.20 kg·hm^-2 for K, respectively. The maximum grassland aboveground biomass was obtained. The amount was 58.12 g·m^-2.

Key words: Stipa baicalensis, Clipping pasture, “3414&rdquo, soil and fertilizer test, Punching, Fitting optimization

摘要：

呼伦贝尔割草地由于在利用时间和空间上比较固定，连年打草导致割草地严重退化。为保护呼伦贝尔割草地和促进草地生态恢复，采用打孔及“3414”土肥配方试验，施用氮、磷和钾肥作为试验处理因素，结合回归拟合及模拟寻优等分析方法，得到如下结论。单因素氮肥在非打孔区域对生物量的影响显著，且存在最佳施肥水平（施肥量为105 kg·hm^-2）和理论最高草地生物量（55.66 g·m^-2）；双因素中，打孔区域氮、磷和钾两两之间的组合效应均高于非打孔区域，说明打孔与施肥同时进行可改善施肥对草地生物量的影响程度，也说明打孔对草地生物量的提高具有促进作用。天然割草地采用“3414”土肥配方试验需要增加处理重复或者样点重复，以保证数据的集中性反映施肥处理效果。依据氮、磷和钾全信息模拟寻优结果，非打孔区域对应的施肥量分别为246.14 kg·hm^-2、246.75 kg·hm^-2和8.68 kg·hm^-2，此时草地最大地上生物量为62.09 g·m^-2；打孔区域的最优处理组合施肥量分别为氮肥231.50 kg·hm^-2、磷肥374.50 kg·hm^-2和钾肥25.20 kg·hm^-2，获得最大草地地上生物量为58.12 g·m^-2。

关键词: 贝加尔针茅, 割草地, &ldquo, 3414&rdquo, 土肥试验, 打孔, 拟合优化

CLC Number:

S543.9

LU Shi-jie, ZHANG Shuang, LIU Hong-mei, WEI Zhi-jun, BAI Yu-ting, YAN Rui-rui, XIN Xiao-ping, WU renqiqige. Responses of Aboveground Biomass to Fertilizing and Perforating in Stipa baicalensis Clipping Pasture[J]. Acta Agrestia Sinica, 2018, 26(2): 330-340.

吕世杰, 张爽, 刘红梅, 卫智军, 白玉婷, 闫瑞瑞, 辛晓平, 乌仁其其格. 贝加尔针茅割草地地上生物量对施肥及打孔的响应[J]. 草地学报, 2018, 26(2): 330-340.

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Responses of Aboveground Biomass to Fertilizing and Perforating in Stipa baicalensis Clipping Pasture

贝加尔针茅割草地地上生物量对施肥及打孔的响应

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