Earticle

초록

영어

This experiment was conducted to study the effect of different water and fertilizer inputs on the yield to improve the paddy yield in blackland in the cold region. A water-fertilizer coupling mathematical model between the yield and factors including N fertilizer, K fertilizer, P fertilizer and irrigation water(W)amount under controlled irrigation was established based on quadratic D-416 optimized saturation design and test-pit experiment. According to the results, the sequence on effects of water and fertilizer on the yield: W > N > K > P, and as the above inputs increasing, the yield increased at an earlier stage but declined later; for the effects caused by reciprocal action of two factors, the yield increased at an earlier stage but started to decline when certain threshold was reached, the sequence on effects caused by reciprocal action of two factors on the yield: N&K > N&W > K&W > N&P > P&W >K&P; under a yield target range of 10500~12000kg/km3 and a confidence interval of 95%, an optimized water and fertilizer adaptation program was 129.10~150.79 kg/hm2，K2O：81.15~105.47 kg/hm2，P2O5：43.19~71.71 kg/hm2, the soil water content at late tillering stage was 70.07%~72.57% of saturated water content.

목차

Abstract
 1. Introduction
 2. Materials and Methods
  2.1. General Information on the Experimental Field
  2.2. Experiment Design and Management
  2.3. Test Items
 3. Results Analysis
  3.1. Establishment of Regression Model
  3.2. Main Effect Analysis on Factors
  3.3. Signal-Factor Effect Analysis
  3.4. Single-Factor Marginal Effect Analysis
  3.5. Factor Interaction Effect Analysis
  3.6. High-Yield Optimized Program Analysis
 4. Conclusion
 Acknowledgment
 References

키워드

저자

• Lin Yanyu [ School of Water Conservancy & Civil Engineering Northeast Agricultural University Heilongjiang Harbin, Key Laboratory of Agricultural Water Resources Use, Ministry of Agriculture, Northeast Agricultural University Heilongjiang Harbin ]
• Zhang Zhongxue [ School of Water Conservancy & Civil Engineering Northeast Agricultural University Heilongjiang Harbin, Key Laboratory of Agricultural Water Resources Use, Ministry of Agriculture, Northeast Agricultural University Heilongjiang Harbin ] Corresponding author
• Xu Dan [ School of Water Conservancy & Civil Engineering Northeast Agricultural University Heilongjiang Harbin, Key Laboratory of Agricultural Water Resources Use, Ministry of Agriculture, Northeast Agricultural University Heilongjiang Harbin ]
• Lv Chunbo [ Heilongjiang Province Farmland Management Center Harbin ]
• Nie Tangzhe [ School of Water Conservancy & Civil Engineering Northeast Agricultural University Heilongjiang Harbin, Key Laboratory of Agricultural Water Resources Use, Ministry of Agriculture, Northeast Agricultural University Heilongjiang Harbin ]

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