耕作

The effects of different tillage practice on system of summer sowing soybean (Glucine max CYFeng Shoul2) including soil temperature, soil water and nutrients as well as biomass dynamic with different phonological stage were examined at Xifeng loess plateau, Gansu province.

本研究综合应用生物学、农学、生理生态学和土壤科学的技术与方法，2001年在甘肃西峰黄土旱塬区，以夏种大豆(Glucine max CV丰收12号)为试验材料，采用水土保持耕作技术，对不同耕作方式下土壤温度、水分、养分动态和夏种大豆生长发育、光合生理生态特征进行了系统研究。

The stage integral model of evaporation amount has been inchoately set up for forecasting field evaporation amount and guiding irrigation, therefore, the system of conservation tillage can be for then developed and perfected.

初步建立了棵间蒸发量的阶段积分模型，为预测农田蒸发量，指导保护性耕作下的田间灌水管理提供理论依据，从而完善和发展了机械化保护性耕作体系，具有创新性。

The conservation tillage as a new type method of tilling started in the 1960s.

保护性耕作是二十世纪六十年代兴起的一种新型耕作方法。

Results show that the automatic regulating ability of the active oxygen scavenging system of RS and HS patterns are stronger than that of CS. The activities range of SOD and POD of RS and HS patterns are stable. The content of MDA at dough stage under NC pattern is lower than that under other patterns, while the content of soluble protein under NC pattern is higher than that under other patterns, which represents the characteristics of delayed maturity.

结果表明：与常规耕作秸秆还田模式相比，旋耕秸秆还田和耙耕秸秆还田模式旗叶衰老过程中活性氧清除系统的自动调节能力较强，SOD、POD活性变化幅度较常规耕作模式平稳；免耕覆盖模式小麦旗叶在蜡熟期MDA含量显著低于其他模式，而可溶性蛋白含量显著高于其他模式，表现出明显的贪青晚熟的特点。

This paper, based on analyzing the effects of the entry into WTO on the China stock raising, puts forward that the traditional grain farming system should be reclaimed with a high yield, high efficiency and sustainable farming system (mixed-raising farming system).

本文在分析加入WTO对我国畜牧业影响的基础上，提出用一种高产，高效，可持续发展的耕作制度改造传统的谷物大田耕作制，从而形成从植物生产到动物转化，再到食品加工这样一个产业链条，实现与世界现代农业的接轨。

The results showed that the soil water content before sowing was obviously improved by the no-tillage and subsoiling, compared to that by the conventional tillage. According to the yield and WUE, treatments could be ranked from highest to lowest in turn as follows: ST, NT and RT.

结果表明；休闲期不同耕作方式对冬小麦播种前底墒具有明显的影响，与传统耕作方式相比，免耕和深松覆盖处理可以显著增加土壤含水率，具有良好的保墒作用；各处理以深松覆盖作物产量和水分利用效率最高，其次为免耕处理，深翻处理效果较差。

Therefore, the general said: in soil bulk density reached 1.3g/cm3 or 1.4g/cm3 above or at the beginning of the areas of conservation tillage, in order to break the traditional farming for many years to form the bottom of the plow, the first year can be Subsoiling.

所以一般认为：在土壤容重达到1.3g/cm3或1.4g/cm3以上时或在开始进行保护性耕作的地区，为了打破多年传统耕作形成的犁底层，第一年可进行深松。

A seven year location experiment in the condition of wheat-corn rotation of Lou soil in Guanzhong plain was conducted. The effects of the subsoiling, rotary tillage and no-tillage on the distributions of micro-aggregates and the contents of organic carbon and nitrogen in soil micro-aggregates were studied.

以7年不同耕作的定位试验为研究对象，研究了深松、旋耕、免耕等保护性耕作对关中塿土小麦–玉米轮作条件下微团聚体分布以及微团聚体中有机碳和全氮含量的影响。

Conventional tillage with bare ground, conventional tillage with straw incorporated and no-tillage with straw mulch were studied in the Hexi corridor of Gansu provience. The result showed: on summer fallow NTS stored soil water more than CTB and CTS by 30.62mm and 23.91mm, respectively; the winter storage irrigation quotas should be reduced to 900~1350 m^3/hm^2 on winter fallow; evaporation controlling rate arrived 38.1% and 7.3% at winter storage irrigation quotas 975m^3/hm^2 and 2100m^3/hm^2, respectively; NTS did not reduce ET during the spring wheat growth stage; yields different between treatments was not significant.

对甘肃河西内陆河灌区采用常规耕作、秸秆还田和覆盖免耕技术的农田水分效应进行研究，试验结果表明：在夏季休闲期，覆盖免耕比常规耕作和秸秆还田多贮水30.62mm和23.91mm；冬季休闲期可将大定额的储水灌溉减少到975~1350立方公尺/hm^2；覆盖免耕抑制蒸发率在储水定额为975立方公尺/hm^2时达到最大值38.1%，而在2100立方公尺/hm^2时最小为7.3%；覆盖免耕在作物生育期并没有减少土坡耗水量；各处理产量之间没有显著差异。

Effect of water saving was studied under no-tillage with straw mulch, conventional tillage with straw incorporatedand conventional tillage on bare ground. The results showed that NTS increased soil water storage by 30.6 mm and 23.9 mm over CTS and CTB during summer fallow.

对免耕覆盖、秸秆还田和常规耕作在休闲期的节水效果研究表明：在夏季休闲期，免耕覆盖比常规耕作多贮水30.62 mm，比秸秆还田多23.91 mm；在冬季储水灌溉期间，可将储水定额从2 100 m3/hm2减少到600和975 m3/hm2。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。