搜索结果: 1-15 共查到“土壤学 N - P - K levels”相关记录16条 . 查询时间(0.437 秒)
Effect of different levels of humic acids on the nutrient content, plant growth, and soil properties under conditions of salinity
humic acids nutrient content plant growth salinity soil properties
2015/3/3
In this study, the effects were investigated of salinity, foliar and soil applications of humic substances on the growth and mineral nutrients uptake of Corn (Hagein, Fardy10), and the comparison was ...
Lead Distribution in Urban Soils: Relationship Between Lead Sources and Children's Blood Lead Levels
Lead Contamination Blood Lead Children
2015/1/16
The road we chose was definitely the one less traveled by and with the help of our
guiding angel, Hoda, this road has made all the difference.
It is a privilege to be your mother and to watch you ...
Effects of different levels of feeding of pistachio epicarp silage on wool characteristics of growing Afshari lambs
Afshari Lamb Pistachio Epicarp Silage Wool Characteristic
2013/2/28
Sixteen Afshari male lambs (mean live weight 35 ± 1.21 kg, 10 month of age) were used to study the effect of different levels of pistachio epicarp silage (0%, 8%, 17% and 25%) on wool characteristics....
Quantitative and qualitative changes of humus in whole soils and their particle size fractions as influenced by different levels of compost application
Paddy and Upland Fields Straw-Cow Dung Compost
2013/3/4
Effect of long-term application (ca. 30 years) of compost at different levels on humus composi-tion of whole soils and their particle size frac-tions in a field subjected mainly to double cropping (ba...
Effects of different levels of compost application on amounts and distribution of organic nitrogen forms in soil particle size fractions subjected mainly to double cropping
Compost Application Upland and Paddy Fields Soil Organic N Forms Size Fractions
2013/3/4
Effects of different levels of compost application on the amounts and percentage distribution of organic N forms in whole soils and particle size fractions were investigated. Soil samples were collect...
Effect of soil nitrogen levels on some micronutrients, antinutrients and toxic substances in Corchorus olitorius grown in Minna, Nigeria
Corchorus olitorius nitrogen level antinutrients toxic substances
2011/1/13
The nature of soil type is an important factor in the bioaccumulation of substances in plants. Application of nitrogen fertilizer is a common practice in vegetable farming. This study was therefore co...
EFFECT OF NITROGEN LEVELS ON YIELD AND YIELD COMPONENTS OF BASMATI 2000
Oryza sativa nitrogen fertilizers agronomic characters Pakistan
2009/9/30
A study was conducted during kharif season of three successive years from 2001 to
2003 at Rice Research Institute, Kala Shah Kaku, Lahore, Pakistan. Nine nitrogen
levels (0, 50, 75, 100, 125, 150,...
Effect of a Mixture of Charcoal and Pyroligenous Acid Applied to the Soil at Different Fertilizer Levels on the Growth and Yield of Rice
Rice Yield Yield components Pyroligenous acid Charcoal
2009/7/9
The effects of a mixture of charcoal and pyroligenous acid (MCPA; 80% charcoal and 20% pyroligenous acid) applied to the soil at different fertilizer levels on the growth characteristics and yield of ...
VARIATION AND INTERRELATIONSHIP OF CHARACTERS OF PERENNIAL RYEGRASS LAWN CULTIVAR UNDER DIFFERENT LEVELS OF NITROGEN FERTILIZATION IN FOUR-YEAR PERIOD OF CULTIVATION FOR SEED
perennial ryegrass nitrogen fertilization length of use morphological cha- racters
2009/3/31
A field experiment with perennial ryegrass (Lolium perenne L.) grown for seed was conducted in Mochełek, at the Research Station of Agriculture Faculty of University of Technology and Life Scienc...
Effect of three different treatment levels of deltamethrin on the numbers of dung beetles in dung pats
Hydrophilidae Staphilinidae Scarabidae Pyrethroids Deltamethrin
2009/3/3
The effect of 3 different treatment levels of the pyrethroid deltamethrin on the numbers of dung beetles (Families, Hydrophilidae, Scarabidae and Staphilinidae) were investigated. A known quantity o...
Effects of Different Soil Salinity Levels on Germination and Seedling Growth of Safflower（Carthamus tinctorius L.）
Safflower (Carthamus tinctorius L) germination salinity seedling growth
2009/1/13
Safflower (Carthamus tinctorius L.) is rated as moderately salt tolerant and it can produce profitable crops on saline soils. It is slightly more tolerant of salinity than barley but is more tolerant ...
Nitrogen uptake at various fertilization levels and cutting frequencies of Lolium species
Italian ryegrass perennial ryegrass nitrogen defoliation uptake
2010/1/15
A field trial was carried out in 1999–2000 to identify optimal combinations of compound fertilizer rates and defoliation frequencies in perennial ryegrass cv. Raidi (diploid) and Raite (tetraploid) an...
Effect of Boron Levels on Growth and Yield of Cabbage in Calcareous Soils of Bangladesh
Boron levels cabbage growth cabbage yield pot-cultivated cabbage calcareous soils
2010/11/10
The results suggested that 3-4kg B/ha (0.45-0.60g boric acid/pot) is suitable in cabbage or any upland vegetable crop production for better growth and yield in calcareous soils, but above 4.0kg B/ha i...
期刊信息
篇名
Phospholipid fatty acid profiles of Chinese red soils with varying fertility levels and land use histories.
语种
英文
撰写或编译
作者
Yao,H.,Z. L. He,and C. Y. Huang.
第一作者单位
刊物名称
Pedosphere
页面
11(2):97-1...
Growth response and phytoextraction of copper at different levels in soils by Elsholtzia splendens.
2007/7/28
期刊信息
篇名
Growth response and phytoextraction of copper at different levels in soils by Elsholtzia splendens.
语种
英文
撰写或编译
作者
Jiang,L. Y.,X. E. Yang,and Z. L. He.
第一作者单位
刊物名称
Chemosphere
页面
55: 1179-1187...