搜索结果: 31-45 共查到“土壤肥料学 Fertilizer”相关记录48条 . 查询时间(0.093 秒)
Nitrogen fertilizer is a key ingredient for growing a good corn crop. It is not unusual for a well-fertilized crop to yield more than twice as much as an unfertilized crop. But how much nitrogen shoul...
Effects of Different Kinds of Fertilizer and Application Methods on δ15N Values of Tomato
organic products quality stable isotope
2009/6/10
Effects of different kinds of fertilizer and application methods on tomato yields and inorganic nutrient contents were investigated. The contribution of nitrogen usage to tomato production for each fe...
Farmer participatory assessment of two researcher-managed ‘fertilizer tree systems
Nitrogen-fixing trees agroforestry farmer preferences fertilizer supplementation Malawi
2010/9/10
The suitability of maize under two fertilizer tree fallow systems were evaluated by farmers at Makoka Agricultural Research Station in southern Malawi. Sixty-eight farmers drawn from five farmer group...
Indigenous soil nutrient supply and effects of fertilizer application on yield, N, P and K uptake, recovery and use efficiency of barley in three soils of Teghane, the Northern highlands of Ethiopia
Agronomic efficiency internal nutrient use efficiency maximum accumulation maximum dilution
2009/3/4
So far, application of fertilizer to mitigate problems of nutrient-limited yields in farmers’ fields in the Highlands of Ethiopia has been based on conventional blanket fertilizer recommendation...
Effects of fertilizer on nitrogen contents of berries of three coffee clones and berry infestation by the coffee berry borer, Hypothenemus hampei（Ferr.）（Coleoptera：Scolytidae）
Fertilizer coffee clones nitrogen levels infestation Hypothenemus hampei
2009/3/4
The influence of six levels of fertilizer on the nitrogen content of coffee berries and the resulting incidence of Hypothenemus hampei was investigated on three improved clones of Robusta coffee...
Use of pruning and mineral fertilizer affects soil phosphorus availability and fractionation in a gliricidia/maize intercropping system
Agroforestry fertilizer trees available P P-uptake
2009/3/4
Leguminous tree species are known to replenish soil nutrients through biological N fixation, mulch effect and recycling of other nutrients from the deeper soil layer to the topsoil, when managed in ...
A Research on the Using Possibilitiy of the Tobacco Wastes of Cigarette Factory as Fertilizer
Tobacco Wastes Cigarette Factory Fertilizer
2009/1/22
In this study, possibilities of using the tobacco wastes as fertilizers, after processing in cigarette industry have been investigated. Wheat and rape seed and sesame and corn were selected as test pl...
Research on the Performance Values of Some Fertilizer Metering Devices Used For Band Fertilizing
Performance Values Fertilizer Metering Devices Band Fertilizing
2009/1/15
The objectives of this research were , to find the effect of working conditions and different content of fertilizing material (amonium nitrat) on the performance of metering devices used for band plac...
The Effect of Differents Level of Phosphorus Fertilizer on Yield, Quality and Agricultural Characteristics of Some Groundnut Varieties under The Ecological Conditions of Kahramanmaraş
Phosphorus Fertilizer Yield Quality Agricultural Characteristics Groundnut Varieties Ecological Conditions of Kahramanmaraş
2009/1/15
In this experiment, different levels of phosphorus fertilizer (0, 3, 6, 12 and 24 kg P2O5/da) were applied to the some groundnut varieties (PI 288109, NC 7, Gazipaşa and NY 7) under Kahramanmara&...
Effect of Regional Different N-Fertilizer Applications on Nitrate Accumulation in Winter Vegetables Grown on Tokat Region
Nitrogen fertilizer applications nitrate winter vegetables
2009/1/14
The main object of this study was to observe the effect of regional N-fertilizer applications on the nitrate accumulation of some winter vegetables grown on farmer's fields located at different parts...
Outlook for World Fertilizer Demand, Supply, and Supply/Demand Balance
Agricultural production fertilizer demand fertilizer supply
2009/1/8
The outlook is driven by impressive economic growth in Asia, increasing demand for biofuel, and a tight grain market. As a result of tight supply/demand conditions, prices for almost all agricultural...
Effect of Nitrogen Fertilizer on Herbivores and Its Stimulation to Major Insect Pests in Rice
nitrogen fertilizer herbivore insect pests rice fertilizer-nitrogen use efficiencyRice
2008/12/11
Nitrogen is one of the most important factors in development of herbivore populations. The application of nitrogen fertilizer in plants can normally increase herbivore feeding preference, food consump...
Fertilizer Additive Rate and Plant Growth Regulator Effects on Cotton
Fertilizer Additive Rate Plant Growth Regulator Cotton
2008/12/9
In-furrow applications of plant growth regulators (PGRs) and starter fertilizers have been used to improve cotton (Gossypium hirsutum L.) yields. Information about the effects of plant growth regulato...
The Response of Dioscorea rotundata to NPK Fertilizer Application in Edo State, Nigeria
Dioscorea rotundata forest zone tuber yield and NPK fertilizer
2010/11/10
The influence of NPK 15:15:15 fertilizer application on Dioscorea rotundata cv “Obiaoturugo”
was carried at Evboneka in Edo State to determine the optimum level of NPK fertilizer application on yam i...
Improving Calcareous Soil Productivity by Integrated Effect of Intercropping and Fertilizer
calcareous soil intercropping fertilization phytosiderophore
2010/11/10
A field experiment was conducted at Nubariah, Alexandria governorate to study the integrated
effects of fertilization and intercropping on calcareous soil. Two s species plant with different phytosid...