doc 关键词： 长期定位试验；有机肥；化肥；土壤养分；作物产量 [gap=2494]Key words: long-term located experiment; organic manure; chemical fertilizer; soil nutrient; crop yield ..
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...施；长期定位试验；产量；土壤肥力 [gap=2296]Key words：rice;organic-inorganic fertilizer combination;long-term experiment;crop yield;soil fertility ...
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有机-无机肥料配合施用对罗隆土的培肥效果 关键词 ：有机物料；培肥；土；长期定位试验[gap=1201]Key words: soil nutrition; land productivity; loess soil; long-term fertilization trail
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通过长期定位试验研究了不同施肥处理对土壤物理性质的影响。
The influence of organic manure and chemical fertilizers on soil physical properties was studied.
通过田间长期定位试验，探讨了耕作措施对农田黑土耕层水分的影响。
This study determined infiltration into soils on black farmland under different tillage systems by long-term experiment.
基于26年的长期定位试验，研究了施肥对夏玉米生理特性及产量品质的影响。
The paper was done in the 26 years long-term fixed position experiment for to study the effects of fertilization on the physiologic characteristics and production of summer corn.
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