搜索结果: 16-30 共查到“农学 Fertilizer”相关记录148条 . 查询时间(0.14 秒)
The effects of different autumn-seeded cover crops on subsequent irrigated corn response to nitrogen fertilizer
Corn Cover Crop Nitrogen Fertilizer
2013/3/5
A common crop rotation in the west Iran is wheat-fallow-corn. The fallow period after wheat harvest (during fall and winter) can lead to soil erosion, nutrient losses (e.g. nitrate leaching) and offsi...
Growth and Leaf Mineral Content of Some Fruit Species Seedlings as Affected by a Slow Release Nitrogen Fertilizer
Urea-formaldehyde seedlings vegetative growth leaf mineral content soil chemical properties
2010/11/15
Urea-formaldehyde (UF) (38% N) was used as a slow release nitrogen fertilizer on four fruit
seedling species (grape, mango, banana and date palm) comparing with the traditional urea (46% N) to invest...
Effect of Interactive Effects of Potassium Fertilizer and Foliar Zinc Application on Yield and Quality of Sweet Potato
Sweet potato Potassium Fertilizer foliar Zinc roots quality and yield
2010/11/15
Field experiments were conducted during the two successive spring seasons of 2008 and
2009 in the International Potato Center (ICP), Agriculture Research Center (ARC), Kafr El-Zayat, El- Gharbia Gove...
Response of grain and protein yields of triticale varieties at different levels of applied nitrogen fertilizer
Nitrogen fertilizer triticale protein yield grain yield
2011/1/12
The grain yield and grain protein content of winter triticale in dry farming can be significantly affected by environmental conditions and different nitrogen (N) levels. Two year field trials with six...
Effect of phosphorus fertilizer rates on growth and yield of three soybean (Glycine max) cultivars in Limpopo Province
P application cultivar crop biomass grain yield APSIM simulation
2011/1/12
This study aimed at assessing the effects of phosphorus (P) rates on the growth and yield of three soybean cultivars in Vhembe district, Limpopo Province, South Africa. Field experiments were carried ...
Effect of Bio and Mineral Phosphorus Fertilizer on the Growth, Productivity and Nutritional Value of Fenugreek (Trigonella foenum graecum L.) in Newly Cultivated Land
Fenugreek Mineral Phosphorus Biological fertilizer Nutritional Value
2010/11/15
Two field experiments were carried out to study the effect of bio and mineral phosphorus
fertilizer on the growth, productivity and nutritional value of some fenugreek cultivars in newly cultivated l...
ROW METHOD OF SUGAR BEET (BETA VULGARIS L.) FERTILIZATION WITH MULTICOMPONENT FERTILIZER BASED ON UREA-AMMONIUM NITRATE SOLUTION AS A WAY TO INCREASE NITROGEN EFFICIENCY
multicomponent liquid fertilizer based on UAN sugar beet P and K rates
2010/12/9
Sugar beet is the main crop commonly cultivated for sugar production in temperate regions of the World. Actual yields in main Central Europe producing countries are much lower, due to many limiting fa...
Fertilizer options for sustainable maize (Zea mays L.) production in the Trans Nzoia district of Kenya
Nzoia district maize variety yield diammonium phosphate
2011/1/11
With increasing human population against declining staple food crop yield trend, food insecurity is inevitable. Soil fertility problem has been identified as a major factor hindering maize productivit...
FERTILIZER CONSUMPTION PATTERNS IN CENTRAL EUROPEAN COUNTRIES – EFFECT ON ACTUAL YIELD DEVELOPMENT TRENDS IN 1986-2005 YEARS – A COMPARATIVE STUDY OF THE CZECH REPUBLIC AND POLAND
long-term patterns of fertilizer consumption trends of actual yields development temporary yield gap
2010/12/9
This study outlines the long-term trends of fertilizers consumption in the Czech Republic and Poland and their impact on actual yield development of main crops for the period 1986-2005. In both countr...
Farmer evaluation of phosphorus fertilizer application to annual legumes in Chisepo, Central Malawi
Grain legume farmer participation soil fertility phosphorus monitoring and evaluation
2011/1/11
Building from the perception that farmers have an intimate knowledge of their local environment, production problems, crop priorities and criteria for evaluation, an on-farm experiment was conducted w...
Discovery in legumes could reduce fertilizer use, aid environment, say Stanford researchers（图）
legumes fertilizer use aid environment
2010/3/4
Nitrogen is vital for all plant life, but increasingly the planet is paying a heavy price for the escalating use of nitrogen fertilizer.Excess nitrogen from fertilizer runoff into rivers and lakes cau...
Variable rate fertilizer application in Turkish wheat agriculture: Economic assessment
Precision agriculture economic assessment wheat production variable rate fertilizer application
2011/1/11
Fertilizer application is one of the most important operations in agricultural production. Traditionally, fertilizer is applied onto the whole farmland regardless of the variations across the land.
Economic assessment of fertilizer use and integrated practices for environmental sustainability and agricultural productivity in Sudan savannah zone, Nigeria
Organic inorganic fertilizer nutrient loss environmental exploitation degradation
2011/1/10
An assessment of fertilizer use and other integrated practices was carried out with two hundred farmers selected by stratified random sampling from twenty villages in Kano and Katsina States of Nigeri...
Effects of Reduced Amounts of Fertilizer on Nutrition, Fruit Yield and Quality of Satsuma Mandarin Receiving Frequent Spraying with a Small Volume of Liquid Fertilizer
brix citric acid content labor-saving skin color sprinkler
2010/11/24
Effects of overhead liquid fertilizer application on tree nutrition, yield and fruit quality of satsuma mandarin (Citrus unshiu Marc.) were investigated. Liquid fertilizer was prepared by dissolving s...
Investigation of Reducing the Amount of Fertilizer and Introduction of Limited Nutrient Supply Control into Substrate Culture Using a Double Trough Bed of Tomatoes
EC-based control method nutrient uptake characteristics substrate culture
2010/11/24
Limited nutrient supply control of tomato grown in substrate culture using a double trough bed was investigated. Two experiments were conducted to determine the effect of a reduced amount of nutrient ...