玉米

Results show that microbial biomass carbon and microbial biomass nitrogen in fertilized soil peak in the first several days, and then decline. Incubating both sweet maize straw and white clover have the highest yield, maxima of 529.57 mgkg^(-1) and 75.50 mgkg^(-1) respectively. They also release respired CO2 the most among all treated soils. The best mineral nitrogen release is in white clover incubating, with a maximum of 29.81 mgkg^(-1) under a 26-day culture, and then keeping 1.60 times the control and reaching 2.48 times at 80-day culture. Sweet maize incubating has the least mineral nitrogen release. It is 13%~53% of the control under a 26-day culture, with a maximum of 7.51 mg kg^(-1). Soil nitrogen mineralization is insignificant under sweet maize incubating with urea in short-term.

研究发现，各施肥处理的土壤微生物量碳、微生物量氮均在培养前期出现峰值，后期平稳降低；甜玉米桔秆和白三叶草绿肥同时还田的土壤微生物量碳、微生物量氮在各培养时期均最大，峰值分别达529.57 mgkg^(-1)，和75.50 mgkg^(-1)，土壤呼吸产生的CO2最多；白三叶草绿肥单独还田有利于土壤无机氮的释放，培养第26d无机氮达到最大值，为29.81 mgkg^(-1)，之后一直在对照处理的1.60倍以上，第80d达到2.48倍；甜玉米秸秆单独还田不利于土壤无机氮的释放，培养的第26d至结束，甜玉米秸秆处理的无机氮为对照的13%~53%，最大为751 mgkg^(-1)；甜玉米秸秆配施尿素，短期内不利于土壤无机氮矿化。

Results show that microbial biomass carbon and microbial biomass nitrogen in fertilized soil peak in the first several days, and then decline. Intercropping Incubating both sweet maize straw and white clover have the highest yield, maxima of 529.57 mg·kg-1 and 75.50 mg·kg-1 respectively. They also release the most respired CO2 the most among all treated soils. The best mineral nitrogen release is in white clover intercroppingincubating, with a maximum of 29.81 mg·kg-1 under a 26-day culture, and then keeping 1.60 times the control and reaching 2.48 times at 80-day culture. Sweet maize incubatingintercropping has the least mineral nitrogen release. It is 13%~53% of the control under a 26-day culture, with a maximum of 7.51 mg·kg-1. Soil nitrogen mineralizatiomineralization is insignificant under sweet maize incubatingintercropping with urea in short-term.

研究发现，各施肥处理的土壤微生物量碳、微生物量氮均在培养前期出现峰值，后期平稳降低；甜玉米秸秆和白三叶草绿肥同时还田的土壤微生物量碳、微生物量氮在各培养时期均最大，峰值分别达529.57 mg·kg-1和75.50 mg·kg-1，土壤呼吸产生的CO2最多；白三叶草绿肥单独还田有利于土壤无机氮的释放，培养第26 d 无机氮达到最大值，为29.81 mg·kg-1，之后一直在对照处理的1.60倍以上，第80 d达到2.48倍；甜玉米秸秆单独还田不利于土壤无机氮的释放，培养的第26 d至结束，甜玉米秸秆处理的无机氮为对照的13%～53%，最大为7.51 mg·kg-1；甜玉米秸秆配施尿素，短期内不利于土壤无机氮矿化。

Maize plants were treated by the low temperature under different water conditions during seedling and tasseling periods in the artificial climate chamber to determine the impacts of low temperature, drought and their combination on maize yield in the Northeast China. Based on the results of the controlled experiment, the WOFOST model was applied to simulate the integrated impacts of low temperature and drought on maize yield.

在玉米苗期和抽雄期利用人工气候箱对不同水分条件下的玉米植株分别进行低温处理，通过控制试验分析了低温、干旱以及二者合并对玉米生产的影响，在此基础上应用WOFOST作物模型模拟分析了低温、干旱以及二者合并对东北地区玉米产量的影响。

The results show that, under each drip irrigation treatment before the tasselling stage of spring maize, the fluctuation of average soil water content and soil matric potential at different soil depthes are comparative low under high frequency drip irrigation treatment, and the HDI can hold stable soil water content. The drip irrigation can obviously delay the effect of air temperature on the soil temperature, which was influenced by irrigation process, soil water content and crop growth stages. In addition, the irrigation frequency affects the spring maize root distribution in the soil, and the HDI improves the probability of root distribution in upper soil(0~40 cm). The yield difference of spring maize for irrigation frequency treatments is not significant under the typical field irrigation model combined irrigation with precipitation.

试验结果表明：在春玉米抽雄期以前阶段实施的滴灌各处理中，高频滴灌下土壤平均含水率和不同深度处的土壤基质势波动幅度较小，高频滴灌下土壤水分能保持在一个比较稳定的范围；土壤温度受灌水过程、土壤含水率及作物生育阶段的影响较明显，滴灌能显著延迟气温对土壤温度的影响；灌水频率对春玉米根系分布存在一定影响，高频灌溉能显著促进春玉米根系在上层土壤(0～40 cm)中的分布；此外，在这种典型的灌溉和降雨相结合灌溉模式下，不同灌水频率下玉米产量差异不显著。

The supplement of selium or iodine as twice as control ilmproved the deposition of selium or iodine, which was credible basis on de- veloping functional food. 3. The composition of basal diet affected yolk color, when one third wheat, or one third rice, or one second wheat, or one second rice were substituted for yellow corn, the yolk color decreased to 5, 4, 3, 2 degree respectively.

本试验中1/3小麦替代玉米组蛋黄颜色降到5级，1/3大米替代玉米组蛋黄颜色降到4级，1/2小麦替代玉米组蛋黄颜色降到3级，1/2大米替代玉米组蛋黄颜色降到2级。

The U.S ranks first in the production and export of corn. It produces nearly 50% of the corn in the world.The Corn Belt is in the Midwest. Iowa is the leading corn-producing state.

美国的玉米产量几乎占到世界总产量的 50%，是世界最大的玉米生产和出口国，玉米带主要位于中西部地区，爱荷华是主要的玉米生产州，中西部是美国最重要的农业区。

The U.S ranks first in the production and export of corn. It produces nearly 50% of the corn in the world.The Corn Belt is in the Midwest. Iowa is the leading corn-producing state. The Midwest is the most important agricultural region of the U.S.

美国的玉米产量几乎占到世界总产量的50%，是世界最大的玉米生产和出口国，玉米带主要位于中**部地区，衣阿华是主要的玉米生产洲，中西部是美国最重要的农业区。

The U.S ranks first in the production and export of corn. It produces nearly 50% of the corn in the world. The Corn Belt is in the Midwest. Iowa is the leading corn-producing state. The Midwest is the most important agricultural region of the U.S.

美国的玉米产量几乎占到世界总产量的50%，是世界最大的玉米生产和出口国，玉米带主要位于中西部地区，衣阿华是主要的玉米生产州，中西部是美国最重要的农业区。

The U.S ranks first in the production and export of corn. It produces nearly 50% of the corn in the world.The Corn Belt is in the Midwest. Iowa is the leading corn-producing state. The Midwest is the most important agricultural region of the U.S.

美国的玉米产量几乎占到世界总产量的50%，是世界最大的玉米生产和出口国，玉米带主要位于中西藏部地区，爱荷华是主要的玉米生产洲，中西部是美国最重要的农业区。

The U.S ranks first in the production and export of corn. It produces nearly 50% of the corn in the world.The Corn Belt is in the Midwest. Iowa is the leading corn-producing state. The Midwest is the most important agricultural region of the U.S.

美国的玉米产量几乎占到世界总产量的50%，是世界最大的玉米生产和出口国，玉米带主要位于中西藏部地区，衣阿华是主要的玉米生产洲，中西部是美国最重要的农业区。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。