在北京潮土上研究了冬小麦-夏玉米轮作体系下土壤氮素反硝化损失。
Soil denitrification was studied in winter wheat-summer maize rotation cropping system with an aquic cambisol.
结果表明：em微生物堆肥能明显增加冬小麦和夏玉米的产量。
The results showed that EM microbial compost increased winter wheat and summer maize yields significantly.
通过对夏玉米和冬小麦生长季节期间土壤水动态观测试验，探讨了地下水浅埋条件下土壤水动态的变化规律。
A field experiments was conducted to study soil moisture and water potential changes in farmlands with a shallow water table during summer maize and winter wheat seasons.
模型对冬小麦—夏玉米轮作体系作物叶面积指数、作物系数、根系生长与分布进行了模拟。
In the model, the leaf area index (LAI), crop coefficients, and root penetration and distribution were simulated for the winter wheat and summer corn double cropping system.
冬小麦和夏玉米是关中地区最主要的粮食作物。
The winter wheat and the summer corn are the Guanzhong area most main grain crops.
和冬小麦季比较，夏玉米季的表观损失高于前者，并以干旱年份更显著。
Compared with the nitrogen applied to wheat more loss of nitrogen was observed in it applied to maize especially in a dry year.
该系统针对河南省主要的农作物——冬小麦、夏玉米和棉花进行全生育期“适宜”和“灾害”气象指标的浏览查询。
The system could browse or query the "fitting" and "disaster" index in whole grow phase of winter wheat, summer maize and cotton in Henan.
保定平原是河北省主要的粮食主产区，农作物以冬小麦、夏玉米和棉花为主。
Baoding plain is a primary bread basket in Hebei province, winter wheat, maize and cotton are the main crops.
在华北平原北部研究了不同降水年型、不同水氮管理措施对冬小麦和夏玉米产量和氮素平衡的影响。
The effect of different rainfall years and different water and nitrogen management ways on winter wheat and summer maize was studied in northern part of north China Plain.
本文对晋中盆地水地冬小麦区麦收后营养钵育苗移栽夏玉米的生长发育规律进行研究。
This paper studied the seedling transplantation summer maize's growth patterns, which was planted in the irrigatal and fertile land of central area of Shanxi province.
以不覆盖的处理为对照，研究了冬小麦期覆盖秸秆对夏玉米土壤水分动态变化及产量的影响。
Taking bare surface as CK, this paper discussed effect of straw-mulch during wheat stage on soil water dynamic changes and yield of summer maize.
土壤水分模型采用适合于黄淮平原冬小麦、夏玉米等作物的土壤水分平衡方程。
A soil moisture balance equation that is applicable for winter wheat and summer maize in the Huanghe-Huaihe plain was adopted as the soil moisture model.
针对冬小麦和夏玉米两种作物，对仪器的性能进行了田间试验验证。
Field tests ware executed to verify the performances of the instrument at the period of winter wheat and summer corn.
2000年和2002年对河北农户冬小麦和玉米施用肥料品种结构的调查结果表明，施肥中普遍存在重冬小麦而轻夏玉米的现象。
Based on the investigation on Hebei farmers in 2000 and 2002, consumption structure of fertilizer varieties are analyzed on winter wheat and maize.
采用田间微区15n示踪试验研究了肥料氮在冬小麦、夏玉米当季和后茬的去向。
The fate of nitrogen fertilizer in current crop and succession crops in winter wheat and summer maize rotation system were studied using field 15n micro-plot.
本实验是在十年研究的基础上，在华北地区小麦—玉米典型耕作制度下，对土壤长期施用EM生物有机肥，研究其对冬小麦和夏玉米的生产效果与作用机理。
The production effects and action mechanism of applied EM biological-organic fertilizer to winter-wheat and summer-maize under the typical cropping systems of the Huabei area in china were analyzed.
本实验是在十年研究的基础上，在华北地区小麦—玉米典型耕作制度下，对土壤长期施用EM生物有机肥，研究其对冬小麦和夏玉米的生产效果与作用机理。
The production effects and action mechanism of applied EM biological-organic fertilizer to winter-wheat and summer-maize under the typical cropping systems of the Huabei area in china were analyzed.
应用推荐