Effects of Planting Density and Film Mulching on Soil Moisture and Root Growth of Maize Field in Rain-fed Region of North-eastern China

CHEN Zhijun; SUN Shijun; ZHANG Xudong; LIU Rui; CHI Daochi

doi:10.13870/j.cnki.stbcxb.2017.01.037

您当前的位置：

首页 >

文章列表页 >

Effects of Planting Density and Film Mulching on Soil Moisture and Root Growth of Maize Field in Rain-fed Region of North-eastern China

更新时间：2025-03-12

- Effects of Planting Density and Film Mulching on Soil Moisture and Root Growth of Maize Field in Rain-fed Region of North-eastern China
- Vol. 31, Issue 1, Pages: 234-229(2017)
- 作者机构：
  
  沈阳农业大学水利学院,沈阳,110866
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2017.01.037
  CLC： S271
- Published：2017
- 稿件说明：
移动端阅览
CHEN Zhijun, SUN Shijun, ZHANG Xudong, et al. Effects of Planting Density and Film Mulching on Soil Moisture and Root Growth of Maize Field in Rain-fed Region of North-eastern China[J]. 2017, 31(1): 234-229.
DOI：

CHEN Zhijun, SUN Shijun, ZHANG Xudong, et al. Effects of Planting Density and Film Mulching on Soil Moisture and Root Growth of Maize Field in Rain-fed Region of North-eastern China[J]. 2017, 31(1): 234-229. DOI： 10.13870/j.cnki.stbcxb.2017.01.037.

摘要

为探讨东北雨养区玉米生长状况和田间水分对种植密度和地膜覆盖的响应，2015年在沈阳农业大学水利学院试验场设置了低（67 500株/hm2）、中(82 500株/hm2)、高(97 500株/hm2) 3个种植密度水平和覆膜/裸地2种方式的玉米田间试验，据试验结果分析了土壤水分、玉米根系及其产量变化。结果表明：（1）在0—20 cm土层中，整个生育期内，覆膜对于低密度处理的土壤田间含水率影响显著(p<0.05)，生育前期、中期和末期覆膜比裸地含水率分别提高了9.80%，15.93%，12.77%；在20—40 cm土层中，生育前期，中密度覆膜种植的玉米田间含水率比裸地高13.83%(p<0.05)；在40—60 cm土层中，覆膜对中密度玉米土壤含水率影响显著(p<0.05)，生育前期、中期、后期覆膜比裸地处理的土壤含水率分别提高了15.47%，4.11%，8.96%。（2）种植密度对玉米根系的根长、总投影面积、总根体积和根系表面积均有显著影响，随着密度的增加，四者均呈减小趋势；在密度相同时，覆膜相比裸地提高了玉米根系的根长、总投影面积、根系总体积和根系表面积；中密度时，覆膜对玉米根系的4项指标提高最为显著(p<0.05)，分别比裸地提高了44%，38%，38%，33%。（3）玉米产量随着种植密度的增加而减小，当密度为67 500株/hm2时，玉米产量和百粒重均最大，百粒重为36.83 g/百粒，最高产量为12 573.69 kg/hm2。结果说明：在水肥条件相同情况下，玉米种植存在一个最优密度，在最优密度内，玉米产量随着密度的增加而增加，超过了最优密度产量呈现减少趋势。研究结果对东北雨养区种植密度和覆盖方式的优化组合提供了理论依据，对提高雨水利用效率和玉米产量也具有参考意义。

Abstract

In order to investigate the effects of different maize planting densities and plastic film mulching on maize yield

soil water content and root growth in the rain-fed agriculture region of north-eastern China

the field experiment with different planting densities (67 500 plants/hm2

82 500 plants/hm2，97 500 plants/hm2) and film mulching was conducted in the experimental field of Shenyang in 2014—2015. The results showed as follows：（1）In different growth stages of maize

mulching and planting densities had different effects on soil water content in different soil layers. In the upper soil layer of 0—20 cm

soil water content increased by 9.80%

15.93% and 12.77% respectively for three stages (earlier stage

middle stage and later stage) with planning density of 6 7500 plants/hm2. In the soil layer of 20—40 cm

soil water content increased by 13.83% in the early growth stage of maize with planning density of 82 500 plants/hm2

and in the soil layer of 40-60 cm

soil water content (82 500 plants/hm2) increased by 15.47%

4.11% and 8.96% respectively for three stages. (2)The effects of planning density on root length

root project area

root volume and root surface area were significant. This characteristic parameter showed a decreasing trend as the planting density increased. Root length

root project area

root volume and root surface area with the film mulching planting and planning density of 82 500 plants/hm2 increased by 44%，38%，38% and 33% respectively. (3)The grain yield decreased with the increase of planting density. When planting density was 67 500 plants/hm2

the 100-seed weight and grain yield were the highest. The highest 100-seed weight was 36.83 g

and the highest yield was 12 573.69 kg/hm2. These results showed that there was an optimal planning density of maize. Out of this density

the yield of maize decreased with the increase of the planning density. The research provided a theoretical basis for rational selection of optimal planting density and plastic film-mulching

which was also significant to improve rainwater use efficiency and maize yield in rainfed areas in Northeast China.

关键词

Keywords

references

Views

1193

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Influencing Mechanisms of Plant Roots on Soil Preferential Flow in Loess Hilly-Gully Region

Impact of Tillage Practices on Sandy Soil Structure and Maize Growth in Semi-Arid Regions

Effects of Straw Returning and Planting Density on Nitrogen Absorption， Utilization， and Yield of Maize

Effects of Herbaceous Root Growth on Soil Resistance to Erosion under Different Planting Densities

Study on Transpiration Rate of Black Locust under Different Soil Water Content in Semi-Arid Region Loess Plateau

Related Author

MU Xingmin

GAO Peng

ZHOU Yuchen

DING Jianchuan

LI Mengzhen

WEN Yongfu

HUANG Mingbin

JIA Xiaoxu

Related Institution

Department of Computer Science， Hebei University of Water Resources and Electric Engineering

Research Center of Soil and Water Conservation and Ecological Environment， Chinese Academy of Sciences and Ministry of Education， Yangling

Hebei Technology Innovation Center for Coastal Wetland Water Resources Allocation and Ecological Protection

Department of Hydraulic Engineering， Hebei University of Water Resources and Electric Engineering

College of Natural Resources and Environment， Northwest A&F University， Yangling

⁰