fertiliz相关论文
在云南省腾冲县对11~14年生的秃杉人工林开展大量元素N、P、K和微量元素Zn、Mn、B、Cu等不同肥料的连续施肥试验。连续4 a的试验结......
Objective: To evaluate the effect of preimplantation genetic diagnosis (PGD) conducted for women who had Down syndrome p......
Objective To investigate the efficacy and safety of combined use of clomiphene citrate (CC) and gonadotropins (Gn) on th......
Pregnancies achieved by assisted reproduction technologies,particularly by intracytoplasmic sperm injection(ICSI)proced......
Oyster shell soil conditioner had significant influence on soil and rhizospheric microorganisms in their biomass, respi......
Effect of Long-Term Fertilization on Organic Nitrogen Forms in a Calcareous Alluvial Soil on the Nor
In order to illustrate the change of nitrogen (N) supply capacity after long-term application of manure and chemical fer......
Soil organic carbon (SOC) is an important indicator of soil degradation process. In this study, the long-term SOC evolut......
Under the support of National Natural Science Foundation of China including international cooperative research project,......
Previous data showed that a Na+-transmem-brane flux was accompanied with acrosome reaction of sperm. However, the electr......
The nitrogen loss pathway in winter wheat and summer maize rotation system was studied based on field experimental data......
Response of Nematodes in a Hapli-Udic Argosol to Urea Amended with Urease and Nitrification Inhibito
Effects of urea amended with urease and nitrification inhibitors on soil nematode communities were studied in a Hapli-Ud......
January 13th,2007,in CEBU,Philippines,the 12th ASEAN summit-focused attention not only on those Southeast Asian leaders
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An incubation experiment was carried out in laboratory to study the effect of temperature, moisture, phosphorus, organic......
Quality assessment and hydrogeochemical characteristics of groundwater in Agastheeswaram taluk, Kany
The present study investigates the hydrogeochemical characteristics of groundwater quality in Agastheeswaram taluk of Ka......
The diplomatic relations between Belarus and China have been developing stably and successfully ever since the moment of......
火电厂烟气脱硫 (FGD)是重要的洁净煤技术之一.发达国家主要采用以石灰石为脱硫剂的钙法 ,投资大 ,成本高 ,石膏无利用价值 ,不适......
目的初步探讨精子DNA碎片率、精子核蛋白不成熟度与体外受精实验室结局的关系。方法对2013年5~7月在我院行IVF治疗的男性患者行精......
Field and pot experiments were conducted using indica rice varieties with differential chalkiness. There were significan......
To further develop the methods to remotely sense the biochemical content of plant canopies,we report the results of an e......
Regional Evaluation of Winter Rapeseed Response to K Fertilization, K Use Efficiency, and Critical L
The investigation was carried out to study the response of winter rapeseed to potassium (K) feritlization and the critic......
Germination and hydroponic experiments are performed on rice seeds growing in soils treated with Cd stress,with rice see......
To rationally allocate farmland resources,and scientifically make farming industrial planning,we take Yizheng City in Ji......
随着辅助生殖技术(ART)的发展,薄型子宫内膜是临床医生面临的又一挑战.目前已基本达成共识,认为过薄的子宫内膜可影响子宫内膜容受......
几乎所有中文植物学教材都把花粉管当成是种子植物对受精摆脱水束缚的适应特征,并得出粉管受精使种子植物更适应于陆生生活的结论......
[目的]摸清新平县耕地土壤有效硫、有效镁、有效硼、有效锰、有效锌丰缺情况,提出烤烟、甘蔗、玉米、水稻等主要栽培农作物的施肥......
[目的]建立快速、准确、高灵敏度地测定化肥中微量Cr、Cd、As、Pb、Hg元素的方法。[方法]采用电感耦合等离子体质谱法，仪器经条件优......
The objective of this study was to evaluate the effects on chemical and microbiological properties of paddy soil of shor......
目的脱尾的精子头注射是小鼠显微授精的一种常用方法,脱尾对精子造成的膜损伤是否影响卵胞浆内单精子显微注射（ICSI）的受精率和卵裂......
通过“3414”田间肥效试验研究了氮、磷、钾肥施用量在早稻、晚稻之间的合理配比及对产量和养分吸收利用的影响。结果表明，早稻增施......
2009～2010年对浙江省绿茶主产区的诸暨市、嵊州市、淳安县、开化县、永嘉县、建德市、长兴县、衢州市、绍兴县、松阳县、武义县、富......
【目的】明确云南玉溪烟区烤烟大田生育期适宜滴灌定额。【方法】2017年通过田间控水试验,以作物蒸散量(ET_0)为基础,设置4个参考......
不同坡位因其工地条件不同，毛竹林的立竹株数和平均胸径均有不同程度的差异，说明土壤理化性质（如土壤松紧度、土壤肥力）等对毛竹林的质......
对广西邕宁县新江村开展生态农业建设过程中采用沼渣、沼液施肥和继续沿用过去以化肥为主的施肥方式对农产品的质量和土壤地力等所......
为了解目前丰产雷竹地土壤养分状况，作者在１９９９年春天采集了临安市５个乡、镇３３个雷竹大户的竹林地土壤，分析结果表明：雷竹地土壤养分差异较大......
为掌握闽清县水稻田土壤养分状况,采集并检测4005个水田土壤样本的土壤养分含量,并与第2次土壤普查结果进行比较,同时通过2007-201......
研制了一种与11．0～14．7kW小四轮拖拉机相配套的烟田施肥起埂机，该机可一次性完成深施底肥、起埂和整地3项作业，且施肥均匀、施肥量调节......
对吉林省德惠市黑土农田土壤5项指标综合评价的结果表明，土壤速效钾含量、阳离子交换量处于良好级，速效磷含量、土壤有机质含量处于......
试验研究＂地朗·爱派克＂含腐植酸水溶肥料在小麦上的施用效果,在小麦孕穗至灌浆期连续3次喷施,结果表明＂地朗·爱派克＂含腐植......
根据土壤普查,施肥研究和调查资料以及有关统计数据,对兵团施肥现状及存在问题进行分析,并对兵团施肥状况进行评价.目前,施肥和肥......
【目的】针对伊犁河流域水土资源开发,研究不同施肥配比对人工混播草地产量及品质的影响。【方法】运用＂3414＂施肥方案设计,研究不同......
对以培育纤维材为目的的日本落叶松幼林进行施肥5 a的试验分析表明:肥效显著,施肥能有效促进幼林的地径、苗高和冠幅生长;肥效可延......
应用高灵敏度，高精确度，无破坏的中子活化分析及透射电镜电子－Ｘ光等方法技术，对煤煤在大气中排放的物质成分作跟踪测量，并对它的形态作了......
为了改变现有排肥装置对肥料形态特征要求高的缺陷及改善排肥效果,该文设计了一种两级螺旋排肥装置,研究了装置的排肥原理,建立了......
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研究家畜粪便的物理指标与其肥料成分含量的关系,用来预测家畜粪便肥料成分含量.目前国外主要研究的预测家畜粪便肥料成分含量的物......
采用二次饱和D-最优设计,并建立相应数学模型,研究密度与氮、磷、钾施用量对紫色马铃薯的块茎产量影响。结果表明：保证足够的群体密......
利用手捡法和Cobb过筛法对国家黄土土壤肥力与肥料效益监测基地的13个不同施肥处理进行土壤动物调查,共获得土壤动物3530只,隶属6......
目的研究一种未成熟卵母细胞体外培养成熟技术治疗难治性多囊卵巢综合征(PCOS),使其获得妊娠.方法在月经第3～5天给予PCOS患者小剂量......
摘 要：为达到在水稻生长期少施化肥而获得高产，探讨紫云英还田减量施肥对水稻产量及性状的影响。结果表明：翻压紫云英22500 kg·hm-2......
通过采用正交施肥设计在温室进行沙培试验,并作田间施肥试验,建立樟子松 S1-1苗木根干重、新梢干重和全干重与 N、P的函数方程,并......
