搜索结果: 1-12 共查到“蔬菜学 Nitrogen”相关记录12条 . 查询时间(0.14 秒)
Effect of mycorrhizal inoculation of leek Allium porrum L. on mineral nitrogen leaching
arbuscular mycorrhizal fungi nitrate leaching soil root colonization
2016/12/8
This study evaluated the influence of the arbuscular mycorrhizal fungi (AMF) inoculation of leek (Allium porrum L.) on the leaching of ammonia and nitrate nitrogen from the experimental pots filled wi...
Washington State University biologist Mechthild Tegeder has developed a way to dramatically increase the yield and quality of soybeans.
Her greenhouse-grown soybean plants fix twice as much nitrogen ...
Evaluation of Nitrogen Availability Based on the Amount of Extractable Soil Organic Nitrogen and Suggestion for the Proper Fertilization in Rain Shelter-grown Spinach
fertilization manure compost nitrogen uptake sulfate-extractable organic nitrogen
2010/11/24
Absorbance at 280 nm in soil extracts with 0.4 M sulfate solution was highly correlated with the concentration of total N in the extracts of different soils. Therefore, we proposed an easy detection p...
Effects of Nitrogen Fertilization and Cropping Season on the Vitamin U Concentration in Cabbage
Cropping Season Vitamin U Cabbage Fertilization
2009/7/13
Vitamin U (VU) concentration in cabbages harvested in Hokkaido ranged from 7.0 - 66.2 mg kg−1, and the mean was 28.9 mg kg−1 (1996-1998, n=92). Among cropping seasons, the mean VU concentr...
Effect of Liquid Fertilizer during Flower-Bud Differentiation on Nitrogen Concentration,Bolting,and Yield in Welsh Onion Harvested at Early Summer
Bolting rate Nitrate ion concentration Plastic-tunnel culture
2009/7/10
Effect of liquid fertilizer during flower-bud differentiation on nitrogen concentration, bolting, and yield were investigated to optimize management of the fertilizing schedule to avoid bolting in wel...
Effect of the nitrogen fertilizer level on growth and bolting of cv. ‘Kincho’ was investigated to clarify the involvement of nitrogen nutrition in flower initiation of bunching onion (Allium fistulosu...
Effect of Continuous Application of Compost Made from Cattle Waste and Sawdust on the Growth and Nitrogen Uptake of Spinach (Spinacia oleracea L.)
inorganic nitrogen organic nitrogen
2009/7/9
Spinach (Spinacia oleracea L.) is one of the major agricultural products in Iwate prefecture, Japan. To evaluate the effect of compost made from cattle waste and saw dust, the growth and nitrogen (N) ...
VARIABILITY IN MACROELEMENT CONTENT IN TUBERS OF HELIANTHUS TUBEROSUS L. AT DIFFERENT NITROGEN FERTILIZATION LEVELS
Jerusalem artichoke cultivars fertilization mineral elements
2009/3/31
The contents of nitrogen, potassium, phosphorus, calcium, magnesium and sodium were estimated in tubers of Jerusalem artichoke Helianthus tuberosus coming from the field experiment conducted over 2003...
The potential of reducing nitrogen fertilizer rates using a soyabean-sugarcane production system in the South Eastern Lowveld of Zimbabwe
Nitrogen fertilizer vegetable grain soybeans tillers CP72-2086
2009/3/3
Monoculture is common in sugarcane production throughout the world and leads to decline in yields and soil fertility and build up of pests and diseases. Legumes have been shown as potential crops th...
Response of vegetable cowpea to nitrogen and potassium under varying methods of irrigation
Vegetable cowpea irrigation nitrogen and potassium
2009/2/20
An experiment on vegetable cowpea Vigna unguiculata subsp. sesquipedalis) with three methods of irrigation (surface irrigation at 20 mm CPE with 40 mm water, irrigation at 10 mm CPE with 20 mm w...
Effect of Various Nitrogen Sources on Yield and Some Properties of Potato Plant
Various Nitrogen Sources Yield Properties of Potato Plant
2009/1/23
In this investigation, the effects of some slow release and conventionally used fast release nitrogen sources in the soils of Nigde-Misli plain on tuber yield, and protein, starch and NO 3 contents o...
Nitrogen Fertiliser Recovery and Yield Response of Greenhouse Grown and Fertigated Tomato to Root - Zone Soil Water Tension
Fertigation N-fertiliser recovery N-fertiliser concentration 15N soil-water tension tomato
2009/1/13
Tomatoes were grown in a plastic greenhouse under 2 irrigation programmes and four N-fertiliser concentrations (0, 100, 150 and 200 mg N l-1) of irrigation water. P and K concentrations were kept con...