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Impacts of Pig Manure-Based Liquid Fertilizer Agricultural Application on the Water Quality of Agricultural Catchment
Liquid Fertilizer Livestock Manure Paddy Field Upland Water Quality
2013/3/9
This study was conducted to understand the effect of the livestock liquid fertilizer treatment at field-scale up to catchment-scale on the water quality properties. Cultivated paddy rice and upland pl...
Effect of Different Nitrogen Fertilizer Types and Application Measures on Temporal and Spatial Variation of Soil Nitrate-Nitrogen at Cucumber Field
Solar Greenhouse Cucumber Nitrate-Nitrogen Nitrogen Retention
2013/3/8
Nitrate-nitrogen content of groundwater are ever-increasing in underneath vegetable growing areas, in this paper, based on field test of cucumber cultivated in Solar Greenhouse in North China, we stud...
A Study on the Radioactivity Level in Raw Materials, Final Products and Wastes of the Phosphate Fertilizer Industries in Bangladesh
Raw Materials Radioactivity Phosphate Fertilizers and HPGe Detector
2013/3/12
A study on the detection of probable radionuclides and their activity concentrations in the raw material (phosphate rock), final product (fertilizer) and waste samples collected from all the phosphate...
Impacts of Land Use, Fertilizer and Manure Application on the Stream Nutrient Loadings in the Salmon River Watershed, South-Central British Columbia, Canada
Model Landuse Nitrogen Phosphorus Fertilizer Manure
2013/3/11
Manure and fertilizer applications can increase soil productivity and land economic values, but the controversial result can be a decline of water quality due to the increased nutrient exports from so...
2BFS-8型水稻芽种播种施肥机设计与试验（Design of Rice Bud Seed Sowing and Fertilizer Machine）
水稻芽种 播种施肥机 直播 设计 试验
2010/12/29
设计了2BFS-8型水稻芽种播种施肥机，可一次完成平田、开沟（厢沟、畦沟、肥沟）、作畦、播种、施肥、压种、盖肥等工序。采用振动阀门的槽轮排种器，可实现水稻芽种定量精密分行条播，并防止伤芽和断条。采用常规槽轮排肥器与施肥开沟器，可实现常态化肥分行深施。由组合式开沟器形成的多沟并举，有利于水肥有效管理和光、温充分利用。室内台架和田间生产试验表明，该机主要技术性能指标均达到国家相关标准规定。
基于蓝牙技术的变量施肥机速度采集系统设计（Development of a Ground Speed Collecting System for the Variable Rate Fertilizer Machine Based on Bluetooth）
精确农业 变量施肥 速度采集
2009/12/28
设计了基于蓝牙技术的变量施肥机速度信号采集系统。该系统以光电编码器为测速传感器，ARM微处理器接收测速脉冲并计算出速度值，通过KC111适配器以蓝牙（无线）方式传送，蓝牙USB适配器接收速度信号后传送给变量施肥控制器，完成施肥机速度信号采集。试验结果表明该系统最大误差为2.92%，能够满足变量施肥精度要求，可以应用到变量施肥机测速系统中。
Complex Fertilizer Production from the Residue in Producing Furfural Using Straw: Study on the
straw residue additive
2009/11/16
The complex additives which contain (ω) 4%~6% phosphoric acid, 4%~6% calcium triple superphosphate, 80%~90% calcium phosphate, 2%~3% calcium carbonate, 2%~4% sodium hydrosuphite, 2%~4% ferric sulfate ...
基于传感器的变量施肥机定位方法（Positioning Method of Variable Rate Fertilizer Applicator Based on Sensors）
变量施肥机 传感器 定位
2009/11/3
简述了一种应用传感器代替GPS的变量施肥机定位方法。控制器读取传感器的脉冲信号，计算施肥机的行走距离，由自动网格识别算法实现施肥机自动网格识别。本文给出了传感器测距累积误差校正方法以提高定位精度。对于垄长为40 m的网格，要使定位误差小于6%，累积误差应小于2.4 m。实验结果表明，经过校正，拖拉机行走距离为250 m的时候，光电编码器和接近开关传感器测距累积误差分别为2.32 m和2.34 m(...
Strategy for Developing the Fertilizer Sector in Bangladesh for Sustainable Agriculture
Urea TSP DAP Development strategy
2010/9/14
A strategic program for developing the fertilizer sector in Bangladesh for sustainable agriculture is presented in this paper. Based on the land utilization and likely cropping patterns in the future,...
深施型液态施肥装置的设计与试验（Design and Experiment on Liquid Fertilizer Device of Deep-fertilization）
液态肥 施肥量 损失率
2009/5/22
在分析液态肥深施特点的基础上，针对深施过程中人工开沟、覆埋难度大的问题，设计了一种可深施液态肥的装置。对此装置的施肥性能进行了二次旋转正交试验，利用Design-Expert 6.0.1软件分析，获得了液泵压力、喷口直径、土槽台车前进速度和截止阀开度之间交互作用对施肥损失率的影响。最终确定了液态施肥装置的最佳工作参数为：液泵压力0.2MPa、喷肥针喷口直径3mm、土槽台车前进速度0.975m/s和...
Evaluation of Image Analysis to Determine the N-Fertilizer Demand of Broccoli Plants（Brassica oleracea convar. botrytis var. italica）
Image Analysis N-Fertilizer Broccoli Plants
2009/5/19
Numerous models have been developed for calculating optimum decision rules for nitrogen fertilization based on remote sensing techniques. New technologies related to digital image analysis may provide...
深施型液态施肥机扎穴机构优化设计（Optimization Design on Pricking Hole Mechanism of Deep-fertilization Liquid Fertilizer Applicator）
液态施肥机 扎穴 椭圆齿轮 仿真 优化 设计
2010/5/5
为实现液态施肥机高速作业，设计了一种结构简单、运动平稳的椭圆齿轮行星系作为液态施肥机的扎穴机构。对该机构进行运动学分析，建立了数学模型，以穴距200mm和入土深度120～150mm为寻优目标，应用Visual Basic 6.0软件编程得出满足机构运动要求的最优参数范围为：喷肥针尖和行星轮轴连线与行星架的初始夹角-45°～-40°、行星架初始角位移40°～50°、喷肥针尖与行星轮轴心距离280～3...
基于支持向量机的有机肥总养分含量NIRS分析（Near-infrared Reflectance Spectroscopy for Total Nutrient Analysis in Organic Fertilizer Using Linear Support Vector Machine）
有机肥 养分 支持向量机 偏最小二乘 近红外漫反射光谱
2010/2/26
以我国22个省市的120份畜禽粪便为原料的有机肥产品样品为研究对象，利用近红外漫反射光谱法与支持向量机相结合建立了有机肥产品中总养分含量的快速测定模型，并与偏最小二乘法所建模型作了比较。利用偏最小二乘回归法所建立的基于原始样品和干燥粉碎样品的总养分含量近红外模型验证决定系数R2v、预测标准差SEP和验证相对分析误差RPD分别为0.96、7.95g/kg、2.47和0.93、8.02g/kg、3.5...
Economic Assessment of Environmental Pollution Damages Caused by Industry on Agriculture：The Case of Samsun Fertilizer（TÜGSAS）and Karadeniz Copper（KBI）Industries
Economic Assessment of Environmental Pollution Damages Industry on Agriculture Samsun Fertilizer（TÜ GSAS）
2009/1/16
In this study, to assess the environmental pollution damages to agriculture the case of TÜGSAS and KBI industries were chosen. For this aim, change-in-productivity, preventive/defensive expenditu...
Soil quality near a chemical fertilizer industry at Port Harcourt, Nigeria
Ecosystem Dumpsite Leachates Effluent Outfall solid wastes
2008/10/30
A study was carried out on the impact of chemical fertilizer industrial wastes on the quality of soil in the vicinity. The fertilizer industry located at Onne, eastern Nigeria, produces liquid ammoni...