搜索结果: 1-15 共查到“农学 paddy field”相关记录36条 . 查询时间(0.18 秒)
Paddy field soil conservation: Indian historical practices
Stubble Cow Dung Paddy Multi-Crops Heavy Monsoon Rains Soil Conservation
2013/3/4
India is an ancient land having high seasonal rain fall (4 months rain & 8 months dry), has paddy cultivation. Becauses silt-sand separation; buoyant sand gets carried; silt agglutinates. Rill fluid d...
Small Scale Spatial Variability of Apparent Electrical Conductivity within a Paddy Field
Spatial Variability Apparent Electrical Conductivity a Paddy Field
2009/12/2
This study aims to characterize the variability of soil ECa within a Malaysian paddy field with respect to the spatial and seasonal variability. The study was conducted at Block C, Sawah Sempadan, Sel...
Field Experiment on the Migration of Fishes to a Paddy Field with a Small Fishway
biological diversity paddy irrigation systems fish protection
2009/9/10
Medaka (Oryzias latipes) populations have recently declined to such a level that they are listed as a species in danger of extinction in the Red Data Book. And a decline in the numbers of catfish and ...
Perspectives for Fish Protection in Japanese Paddy Field Irrigation Systems
biological diversity aqua-ecosystem agricultural water channel
2009/9/10
In recent years there has been an increasing activity related to the preservation of living organisms (biological diversity) worldwide. It is obvious that the long-term trends contributing to this mov...
The Change of Cultivation and Utilization of Chinese Milk Vetch (Astragalus sinicus L.), and the Effect of Fertilizer and Soil Fertility on Paddy Field as a Green Manure
Cultivation Utilization Chinese Milk Vetch Fertilizer Soil Fertility Paddy Field
2009/8/6
The Change of Cultivation and Utilization of Chinese Milk Vetch (Astragalus sinicus L.), and the Effect of Fertilizer and Soil Fertility on Paddy Field as a Green Manure.
Analysis of the Tillering Behavior of the Rice Plant in the Paddy Field:I. The tillering pattern under two nitrogen levels of basal dressing
First emerged tiller Number of tillers Relative tiller position Rice Synchronous growth
2009/8/5
Under the two types of nitrogen dressing which prevail in Miyagi prefecture, rice cv. Sasanishiki was cultivated in the paddy field, and the tillering pattern was analyzed. One type of nitrogen dress...
Response of Leaf Water Potential of Rice (Oryza sativa L.) to Evaporative Demand under Paddy Field Conditions:II. Relationship between response and yield
Evaporative demand Grain yield Leaf water potential Location Radiation Spikelet number
2009/7/31
We observed previously (Part 1) that maintenance ability of leaf water potential (Ψ1) in rice plants under paddy field conditions changed depending on planting years and seasons and individual locatio...
Response of Leaf Water Potential of Rice (Oryza sativa L.) to Evaporative Demand under Paddy Field Conditions : I. Changes with plant development
Evaporimeter Evaporative demand Growth stage Leaf water potential
2009/7/31
Because the leaf water potential (Ψ1) of the rice plant (Oryza sativa L.) is strongly affected by the evaporative demand of the atmosphere under paddy field conditions, and most changes in Ψ1 reflect ...
Effect of Field Drainage on Root Lodging Tolerance in Direct-Sown Rice in Flooded Paddy Field
Direct-sown rice cultivation Field drainage Irrigation management Pushing resistance Rice Root Root-lodging tolerance
2009/7/29
To elucidate the effect of drainage of paddy fields on root lodging tolerance in direct-sown rice, we measured the pushing resistance (R), diameter of hill at the base (Dm), shoot dry weight (Ws) and ...
Effects of Planting Pattern on the Interception of Solar Radiation by the Canopy and the Light Extinction Coefficient of the Canopy in Rice Plants Direct-sown in a Submerged Paddy Field
Crop growth rate Direct sowing Interception of solar radiation Light-intercepting characteristics Planting pattern Rice
2009/7/24
In order to investigate effects of planting pattern on the interception of solar radiation by the canopy and the light extinction coefficient of the canopy in rice, the rice plants direct-sown in a su...
Effects of High Temperature on Growth,Yield and Dry-Matter Production of Rice Grown in the Paddy Field
Grain yield High temperatures Photosynthetic rate Rice (Oryza sativa L.) Spikelet sterility
2009/7/23
The effect of high temperatures on growth, yield and dry-matter production of rice growing in the paddy field was examined during the whole growth period in a temperature gradient chamber (TGC) from 2...
Seedling Establishment of Rice Sown on Soil Surface in Flooded Paddy Field : I. Varietal difference in seedling establishment
Direct seeding Establishment Floating seedling Flooded paddy field Rice Seedling establishment
2009/7/23
Field experiments were carried out to clarify the differences and key factors in the rate of seedling establishment among rice varieties sown on the soil surface in flooded paddy fields. The percentag...
Analysis of Physiological and Ecological Characteristics of Rice Cultivated with Direct Seeding on Dry Paddy Field
Direct seeding cultivation Mechanical transplanting cultivation Photosynthesis Rice
2009/7/23
To understand the growth habit of rice plants under direct seedling cultivation on well-drained paddy fields, physiological and ecological characteristics were compared among directly seeded and trans...
Effect of Winter Weeds on Growth and Yield of Direct-Seeded Rice in No-tillage Dry Paddy Field
Direct sowing culture of paddy rice Fertilizer No-tillage Rice Winter weeds Yield
2009/7/23
The effects of winter weeds on the growth and yield of direct-seeded rice (Oryza sativa L. cv. Akebono) were evaluated in a no-tillage dry paddy field where Alopecurus aequalis Sobol. var. amurensis (...
Studies on Palatability of Rice in Northern Kyushu:VIII. Nitrogen fertilizer and zeolite application fbr improving the eating-quality of rice produced on Andosol paddy field
Andosol Nitrogen fertilizer Palatability Protein content
2009/7/22
This study was carried out to establish cultivation techniques that improve the eating-quality of rice grown in Andosol (AL) paddy fields by the modification of nitrogen fertilizer application and the...