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- A field experiment was carried out to study the effects of three different rice straw returning methods (straw mulching, straw burning and straw incorporating) on N2O emissions from wheat field. 摘要通过田间试验研究了3种稻秆还田方式（表面覆盖、均匀混施和原位焚烧）对麦田N2O排放的影响。
- Straw returning method 稻草还田方法
- Taxpayer: which kind of office is applicable for the return method? 纳税人：哪类代表处适用申报的办法?
- Maize straw returning to the field can increase the soil total nitrogen and inorganic nitrogen content. 秸秆还田增加了土壤全氮和无机氮含量。
- By analyzing the faults of the traditional types of reamers used for straw returning machine, a new scourge-type reamer was developed. 摘要针对现有秸秆还田机刀具性能的不足，研制了鞭式刀具。
- Li G T, Zhao Z J, Huang Y F, Li B G.Effect of straw returning on soil nitrogen transformation [ J].Plant Nutrition and Fertilizer Science,2002, 8(2): 162-167. [1]李贵桐;赵紫娟;黄元仿;李保国.;秸秆还田对土壤氮素转化的影响[J]
- The contents of available N, K in the different growth stages of later-rice under different patterns of straw returning to field (SRF) were tested respectively in the experiment. 设计了高桩翻耕抛栽、覆盖免耕抛栽和高桩免耕抛栽3种模式的田间小区试验。
- The results showed that the values of N2O emissions were ranked in the order of straw mulching>without straw returning (control)>straw incorporating>straw burning. 结果表明，不同稻秆还田方式麦田N2O排放量为：表面覆盖＞对照（不施稻秆）＞均匀混施＞原位焚烧。
- In this paper，based on temperature returning method，the mathematical modelof latent heat proca has been established suitable for alloys wi1ich have crys tallizing ratpes. 以温度回升法为基础，建立了适合于具有结晶范围合金凝固潜热处理的数学模型，为计算机准确地进行凝固过程数值模拟，提供了合理、精确的计算方法。
- Part 2 bases on the achievement of domestic and overseas scholars in performance evaluation, the article concludes and evaluate the abnormal return method and financial index method. 第二部分首先在国内外学者对并购绩效评价研究的基础上,总结与评价了异常收益法、财务指标体系法。 运用这两种方法对2000年和2001年的并购进行了分析与评价。
- tobacco straw returning to the fields 烟杆还田
- the unitary linear returning method 一元线性回归
- the duality linear returning method 二元线性回归
- The last of these rows seems to have been the last straw. 这场口角看来是彻底破裂的导火线。
- The bird is building a nest of straw and twigs. 这只鸟在用稻草和小树枝筑巢。
- She was drinking juice through a straw. 她正在用吸管喝果汁。
- Design and Experiment of Whole Rice Straw Returning Machine 水稻秸秆整株还田机的设计与试验
- Discounted rate of return method 折现汇报率
- I don't care a straw for you opinion. 我对你的意见毫不介意。
- Research of Scourge-type Reamer Used for Straw Returning Machine 秸秆还田机鞭式刀具的研究
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
