Field experiments dealing with the effects of different measures of irrigation-drainage technique on regulating soil moisture and the growing status of rice were conducted during 1992.
1992年进行了在水稻分蘖后期采用不同灌溉排水技术措施的试验，以研究其调节土壤水分状况及其对水稻生长发育的影响。
The saturated hydraulic conductivity of undisturbed soil can represent the really case in the field and is significant to study soil moisture balance and soil water conservation.
原状土的饱和导水率能反映田间的实际情况，对研究土壤水分平衡和水土保持有极其重要的意义。
The article is validate the influence on moisture characteristic, soil compactness, biological and vegetal characteristic of summer maize by new soil amendment use field experimentation of corn.
通过大田玉米试验，验证新型土壤改良剂对夏玉米生育期土壤水分、紧实度及玉米生理生长特性的影响。
An experiment was carried out to study changes in soil moisture in winter wheat field under the conditions of drip irrigation, furrow and ridge planting.
试验在池栽条件下研究了滴灌与垄沟耕作条件下冬小麦田间土壤水分的动态变化。
The soil moisture is measured in the field by time domain reflectometry , neutron probe and soil sampling, The results showed that the measured values are different.
应用时域反射仪、中子仪和上钻法测定了农田土壤水分，并对农田土层含水量和主体贮水量的测定结果进行了比较。
Besed on the mathematic model of temperature field suggested by V. S. Rugiyanov (1959), we successfully add a correction term of transfer heat considered the fact that moisture migrates in soil.
本文在鲁基杨诺夫等（1959）研究单体土冻结过程温度场的数学模型中，成功地引入了考虑土体湿迁移因素的迁移热修正项。
Through fixed field experiment and determinations of soil moisture, the field water utilization efficiency of wheat and rape seeds was discussed under no tillage and straw mulching.
通过田间定位试验和土壤水分的测定，探讨了免耕和秸秆覆盖还田对小麦、油菜土壤水分利用效率的影响。
Based on the data of regional scale and located field measurement, this paper investigated the soil moisture characteristics of the apple-planting subarea in Weibei dry highland, Shanxi Province.
在区域尺度和定位观测的基础上，探讨了渭北塬区不同苹果种植分区的土壤水分特征。
An instrument is designed for rapid measurement of temperature and moisture of soil in field soil.
为快速测量大田土壤温湿度，而设计的仪器，湿度测量采用电容法。
Level terrace in Chunhua was the system studied object, fallow sloping field was the check, and their soil moisture variety was dynamic monitored.
以淳化试区的水平梯田为系统研究对象，休闲坡地为对照，对其剖面土壤水分变化进行动态监测。
The study on the distribution of soil moisture provides scientific foundation for variable irrigation in a field.
田间土壤墒情分布特性的研究，为田间精量灌溉提供了科学依据。
The effect of lignin and lignin-compound fertilizer on the yield of wheat was researched through field experiment in purple soil and moisture soil.
在潮土和紫色土两种土壤上，比较研究了硫代木质素及其复合肥料对小麦产量的影响。
The field experiment was conducted to study the effects of different conservation tillages on soil temperature, moisture and yield formation of spring maize.
通过大田试验研究了保护性耕作对土壤水温和春玉米产量形成的影响。
In this paper, soil moisture vertical variance was used to analyze the moisture characteristic of soil in yellow soil sloping field of GuizhouProvince.
通过对土壤水分垂直变异的分析，探讨了贵州岩溶地区黄壤坡地的土壤水分特性。
Research on soil moisture movement of drip irrigation, is the right design system and the premise and basis of field crops to high water management.
滴灌条件下土壤水分运移规律的试验研究，是正确设计滴灌系统和对田间作物水分进行精准管理的前提和基础。
The effects of wilting point, field capacity and initial amount of available soil moisture in root zone on soil moisture were positive.
凋萎湿度、田间持水量、整个根区初始土壤有效含水量对土壤水分影响为正效应；
This indicates that photosynthetic rate has the threshold response to soil moisture and the threshold value is about 65% of field capacity.
说明光合作用对土壤水分存在一个“阈值”反应，此值为土壤田间持水量的6 5%左右。
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.
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。
Set up the wheat root water uptake model with the field experiment data of soil moisture;
建立了由田间实测土壤水分动态资料反求的冬小麦根系吸水模型；
To a sample dryland soil in Chaoyang county, Liaoning province, computational result of critical soil moisture content for maize sowing is about 17.34% (gravity content), or 58.1% of field capacity.
针对于朝阳县试验土壤，计算结果显示，播种玉米时土壤临界含水率为17.34 %，为田间持水率的5 8.1%。
Accordingly, the model of high yield and high efficiency for sprinkling irrigation is established depending on soil moisture in the field and the growth of wheat seedlings.
以此为基础，结合田间土壤墒情和麦田苗情，总结出高产高效冬小麦节水喷灌模式。
The rainfed field could provide a content yield, if the soil moisture condition of the first harvest I's IP is good.
这就要求灌溉时，尽量保证第一茬苜蓿生长初期的土壤含水量。
No matter what the soil moisture treated, being with waterlog in normal paddy or upland condition in GCRPS field, once nitrate as nitrogen fertilizer source. N2O emission increased remarkably.
不论是旱种还是水田，只要增加硝态氮源，土壤n2o的排放就极显著增加。
A field information acquisition instrument for positioning, rapid and simultaneous measurement of soil moisture content and compaction was designed.
设计了可以定位、快速、同步测量农田土壤含水率和坚实度的采集仪。
The physical character of soil was also improved after covering straw. The soil bulk density was reduced. Field moisture capacity and porosity percentage were increased.
覆草后土壤的物理性状也得到改善，土壤容重降低、田间持水量和孔隙度提高。
The physical character of soil was also improved after covering straw. The soil bulk density was reduced. Field moisture capacity and porosity percentage were increased.
覆草后土壤的物理性状也得到改善，土壤容重降低、田间持水量和孔隙度提高。
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