搜索结果: 1-15 共查到“作物栽培学 nitrogen N”相关记录69条 . 查询时间(0.239 秒)
白建江（2021）SLAF-Based linkage map construction and QTL mapping of nitrogen use efficiency in rice (Oryza sativa L.) （图）
氮素 水稻 Nipponbare OM052 氮肥利用率
2023/2/27
氮素是植物生长发育所需的大量元素之一，水稻是我国的主要粮食作物，水稻生产对氮的需求仅次于水，是构成水稻生长成本的主要部分。目前，水稻氮肥表观利用率只有39%，即施氮肥量的50%以上残留在环境中。因此，在保证产量不减的基础上如何提高氮肥的利用效率，减少氮肥的使用量是我国农业可持续发展亟待解决的重要问题。
Reducing nitrogen surplus and environmental losses by optimized nitrogen and water management in double rice cropping system of South China
Nitrogen use efficiency N management Water management N surplus Environmental N losses
2023/4/21
Optimized agronomic management improves nitrogen (N) use efficiency in crop production. However, limited information exists about the effect of improved agronomic practices on the N surplus in double ...
QTL mapping for ear length and ear diameter under different nitrogen regimes in maize
Maize (Zea mays L.) ear length ear diameter quantitative trait locus
2011/1/10
Ear length (EL) and ear diameter (ED) are two of the most important traits in maize (Zea mays L.), related to yield and plant morphology. In this study, an F9 recombinant inbred line (RIL) population ...
Nitrogen Uptake by Cover Crops and Inorganic Nitrogen Dynamics in Andisol Paddy Rice Field
Cover crop Paddy field Nitrogen
2010/12/2
Paddy field rice can conserve N in the soil under flooded conditions. However, residual soil N represents a potential environment concern when fields are no longer flooded. Winter annual grass cover c...
Responses of lettuce to irrigation levels and nitrogen forms
Drip irrigation irrigation level nitrogen fertigation
2010/9/14
This study was conducted to investigate the effects of different irrigation levels and nitrogen forms on yield, quality and water use efficiency of lettuce (Lactuca sativa var. longifolia cv. Lital) u...
Development of a Site-Specific Nitrogen Management System for Paddy Rice Food Technology
precision agriculture map variable rate technology yield-monitoring combine
2009/9/10
Land consolidation involving the joining of small paddy fields to form a large-size field has been promoted recently in Japan in order to increase the efficiency of rice production. However, the varia...
Utilization Advantages of Controlled Release Nitrogen Fertilizer on Paddy Rice Cultivation
transplanting cultivation direct sowing cultivation single basal application
2009/9/9
Labor-saving for fertilization has been strongly desired due to the shortage in labor and increasing scale of farming for rice cultivation. In order to clear these problems, the effect of application ...
Effects of Different Rhizosphere Sizes on the Growth, Distribution Patterns and Utilization of Nitrogen Fertilizer in Rice Plant(Oryza Sativa L.)
Oryza sativa L Recovery of Nitrogen Rhizosphere Size
2009/8/6
This study was carried out to clarify the effect of controlled rhizophere sizes on various characteristics of each organ at the heading and maturing stage in paddy rice plants (Oryza sativa L., cv. N...
Effect of Slow Release Fertilizer(Meister)on the Nitrogen Uptake and Yield of the Rice Plant in the Tropics
Growth N-uptale Rice plant Slow release fertilizer
2009/8/5
Field experiments on the response of rice plants to slow release fertilizer (Meister 10, MS10) were conducted from the 1986 wet season (WS) to the 1987 WS at IRRI, with ammonium sulfate (AS) as contr...
Study on Applicability of Nitrogen-Deep Placement Culture from the View Point of Productivity of Various Rice Cultivars in Warmer Area
Indica Japonica Japonica-indica hybrid Nitrogen-deep placement Rice Sink-source ratio
2009/8/5
An applicability of nitrogen-deep placement culture (NDPC) in warmer area suffered from poor number of spikelets and low sink-source ratio, and responsibilities of NDPC for not only japonica rice cult...
Growth and Grain Yield of Wheat in Relation to Differences in Soil Groups : III. Effects of the additional application of nitrogen or phosphoric-acid on the tiller growth and grain yield
Andosol Emergence rate Lodging Red Soil Soil type Spike number Survival rate Varietal difference
2009/8/5
This research was conducted with three varieties (Asakazekomugi, Norin 61 and Norin 64) in Red Soil, Thick High-humic Andosol and Light-colored Andosol. In Red Soil the survival and grain yield of til...
Patterns of Soil Nitrogen Release in Paddy Fields of Warm Regions in Japan and Diagnosis of Fertilizer Application : I. Influence of soil nitrogen release from paddy soils on growth and yield of rice plants of warm regions
Basal application of nitrogen Nitrogen uptake Rice plants Soil fertility
2009/8/5
The Influence of nitrogen release from paddy soils on the grain yield of rice plants was investigated, and the optimum amount of nitrogen fertilizer application was estimated for each of the soil nitr...
Effect of the High Nitrogen Treatment Prior to Transplanting on the Growth and Yield in Rice
Dry matter productivity Growth analysis Leaf blade morphology Nitrogen content Rice
2009/8/4
The effect of temporally high N application was investigated to develop the fertilization method that increases N content per leaf area (NCLA) without the increasing of specific leaf area. The change ...
Cultivar Difference in the Response of Root System to Nitrogen Application in Rice Plant
Adaptability Heavy manuring Nitrogen application Rice Root system
2009/8/4
This study was conducted to examine whether the root system development in rice plant under different nitrogen (N) application regimes is related to adaptability for heavy manuring (AHM) of the cultiv...
Response of the Seminal Root Elongation to NH4-Nitrogen in Several Rice Cultivars
Adaptability Heavy manuring NH4-nitrogen Rice Root elongation Seminal root
2009/8/4
The aim of this study was to examine the effect of various NH4-nitrogen concentrations in culture solution on the seminal root elongation of the rice plant. Ten rice cultivars with differing adaptabil...