1.
Based on the 1987-1989 experimental data, this pater analysed the field water bal-ance in farmlands of the semi-arid areas.
本文根据1987—1989年的试验资料,对半干旱地区农田水分平衡进行了分析;
2.
Spatio-temporal Variability of Soil Water and Water Balance Analysis in Field;
农田土壤水分时空变异特征及水量平衡分析
3.
Water Balance, Transition and Crop Productivity in Red Soil Farmland;
红壤农田水量平衡和水分转换及作物的生产力
4.
Characters of Water Requirement for Main Crops and Field Water Balance in Beijing Region
京郊地区主要农作物需水特征与农田水量平衡分析
5.
Water and Heat Balance and Water Use of Shrub Grassland and Crop Fields in Lhasa River Valley
拉萨河谷灌丛草原与农田水热平衡及植被水分利用特征
6.
Field Water Balance in Dryland of North Weihe and Regulating Technologies;
渭北旱原农田水量平衡及其调控技术研究
7.
Research on Models of Farmland Nutrient Balances and Decision Support System;
农田养分平衡分析与决策支持系统研究
8.
Evaluation of Different Cotton Irrigation Scheduling by Using Field Water Balance Model
利用农田水量平衡模型评价棉田不同的灌溉制度
9.
Analysis shows that the soil P is rich and K is lack in most area of China.
表现出的农田养分平衡状况是磷有余而钾不足。
10.
Study on Nutrient Balance of Five Agro-Ecosystems in Jurong;
句容市五种农田生态系统的养分平衡研究
11.
Spatial-Temporal Change of Phosphorus Balance and the Driving Factors for Agroecosystems in China
中国农田土壤磷平衡现状及驱动因子分析
12.
Nitrogen Budgets in Agro-ecosystem of Hebei Province
河北省农田生态系统氮养分平衡状况研究
13.
Balance of Farmland Potassium Nutrient Input/Output in China Based on GIS
基于GIS技术的中国农田钾素养分收支平衡研究
14.
The effects of long-term fertilization on crop yields and farmland nutrient equilibrium
长期施肥对华北平原潮土作物产量及农田养分平衡的影响
15.
Based on the principle of water balance on farmland, a simulation model for agricultural drought under condition of irrigation is proposed.
根据农田水量平衡原理,建立了灌溉条件下的干旱模拟模型。
16.
Quantitative Evaluation of Water and Nitrogen under Winter Wheat-Summer Maize Cropping System in Irrigative Field;
冬小麦—夏玉米轮作下灌溉农田水氮平衡的定量评价
17.
Effects of nitrogen fertilization and irrigation rate on grain yield,nitrate accumulation and nitrogen balance on sandy farmland in the marginal oasis in the middle of Heihe River basin
水氮配合对绿洲沙地农田玉米产量、土壤硝态氮和氮平衡的影响
18.
acres of level farmland.
好几亩水平的农田。