Earticle

초록

영어

Soil erosion is one of the most widespread ecological problems with the most serious damage worldwide. In the present study, the influence of soil erosion thickness on soybean yield of black soil in Northeast China is studied. With the pot experiment as the method, this study investigates the influence by peeling the surface black soil layer at 0, 5, 10, 20, 25, and 30 cm to simulate different soil erosion thicknesses, establishes a quantitative model of soybean yield to explore the response of soybean yield to soil erosion thickness. The 4-D-optimum orthogonal design (416-A) is adopted to conduct the coupling experiment of water and fertilizers under erosion thicknesses of 0 and 15 cm so that the coupling modes of water and fertilizers under the two soil erosion thicknesses are established. The results show that soil erosion thickness has a significant influence on soybean growth, that is, with the increase in the soil erosion thickness, soybean plant height, pods and grains per plant all reduce, and soybean yield decreases in a Z-shaped curve, while yield reduction rate increases in a S-shaped curve, respectively. Water, along with N, P, and K fertilizers, affect soybean yield, but the intensity varies with soil erosion thickness. Under the soil erosion thickness of 0 cm, the order is: W>P>N>K. While under the soil erosion thickness of 15 cm, the order is: N>W>P>K. With the increase in soil erosion thickness and the decrease in soil fertility, the effect of irrigation reduces, whereas that of fertilization increases. The research results can provide the theoretical basis for soil erosion prevention and control in the black soil region.

목차

Abstract
 1. Introduction
 2. Materials and Methods
  2.1. Introduction of the Experiment Zone
  2.2. Experiment Design
  2.3. Observation Indexes and Methods
 3. Results
  3.1. Influence of Soil Erosion Thickness on Soybean Yield
  3.2. Influence of Soil Erosion Thickness on Soybean Plant Height and Indicators of Soybean Yield
  3.3. Coupling Modes of Water and Fertilizers at Different Soil Erosion Thicknesses
  3.4. Analysis of Main Factor Effects
  3.5. Analysis of Single Factor Effects
  3.6. Analysis of Interaction Effects between Factors
  3.7. Optimum Coupling Mode of Water and Fertilizers
 4. Discussion
 Acknowledgements
 References

키워드

저자

• Hui Liu [ College of Water Conservancy and Architecture, Northeast Agricultural University, Harbin 150030, China ]
• Yongxia Wei [ 1College of Water Conservancy and Architecture, Northeast Agricultural University, Harbin 150030, China , Collaborative Innovation Center of Grain Production Capacity Improvement in Heilongjiang Province, Harbin 150030, China, Key Laboratory of High Efficiency Utilization of Agricultural Water Resources of the Ministry of Agriculture, Harbin 150030, China, 4Key Laboratory of Water-saving Agriculture of Ordinary University in Heilongjiang Province, Harbin 150030, China ]
• Long Wang [ College of Water Conservancy and Architecture, Northeast Agricultural University, Harbin 150030, China ]
• Xian Wu [ College of Water Conservancy and Architecture, Northeast Agricultural University, Harbin 150030, China ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of u- and e- Service, Science and Technology

• 간기

  격월간

• pISSN

  2005-4246

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605