搜索结果: 1-11 共查到“杂草防治 seed”相关记录11条 . 查询时间(0.497 秒)
Inhibiting effect of shallow seed burial on grass weed emergence
weed control seedling emergence
2016/2/22
The efficacy of superficial tillage as a sustainable tool to reduce the emergence of Digitaria sanguinalis, Setaria viridis, and Sorghum halepense was evaluated with field experiments. Seeds were buri...
Palmer Amaranth (Amaranthus palmeri) Damage Niche in Illinois Soybean Is Seed Limited
Common garden experiment, genetic and environmental variation geographic range expansion global change weed–crop interference
2015/12/21
Palmer amaranth, a dioecious summer annual forb, originating in Sonoran desert washes, compromises crop yields in much of the southern United States and its range is expanding northward. Appropriate t...
Occurrence of biotic harmful agents in Czech grass seed production (1995–2004)
grass seed weeds diseases pests external conditions
2015/2/6
In the years 1995–2004 the spectra of weeds, diseases and pests in grasses grown for seed in the Czech Republic were examined and the effect of external factors on their changes was assessed. The spec...
Effect of emergence times and shading conditions on growth, seed production, and seed size of tropical spiderwort（Commelina benghalensis L.）
Commelina benghalensis seed size emergence time shading seed production
2009/3/11
We investigated the seed size, growth, and seed production of tropical spiderwort (Commelina benghalensis L.), an annual weed in the Commelinaceae, under different emergence times and shading condit...
Effect of summer flooding on wild oat and Italian ryegrass seed viability
wild oat Italian ryegrass seed survival flooding intermittent irrigation
2009/3/11
Effect of summer flooding on wild oat and Italian ryegrass seed viability.
Growth and seed production in wild and weed azuki beans under shading conditions
shading condition wild azuki bean weed azuki bean seed production main stem length
2009/3/11
In order to obtain fundamental knowledge of habitat management for the in-situ conservation of wild and weed azuki beans as genetic resources, we investigated their growth including plant architectu...
Emergence pattern and seed dormancy of Aeschynomene indica L. in paddy field
Aeschynomene indica L emergence pattern buried seed dormancy awakening
2009/3/10
For understanding emergence ecology of Aeschynomene indica L., change of plants number in paddy field and dormancy of seeds buried or placed on soil surface were examined. The results were as follow...
Characterization of seed dormancy and germination patterns of weedy rice in Japan
weedy rice dormancy germination pattern habitat distribution
2009/3/10
Characteristics of seed dormancy and germination patterns of weedy rice in Japan were studied by germination tests conducted at 100days after heading. Seventy-four and forty accessions of weedy rice...
Effects of cadmium on the growth and the seed production of Portulaca oleracea L. var. sativa（Haw.）DC.
cadmium growth seed production Portulaca oleracea L. var. sativa（Haw.）DC.
2009/3/10
Seeds of Portulaca oleracea L. var. sativa (Haw.) DC. were sown in the pots filled with the sandy loam soil contained 0, 5, 10 and 20mg/kg of cadmium, and then were grown under a grass-house conditi...
Integrated Effect of Seed Rates and Weed Management Treatments in Wheat (Triticum aestivum L.)
seed rate herbicide nutrient uptake weed management wheat
2010/11/11
Increased crop density and use of herbicides are two important components of integrated weed
management program in wheat but no much information is available on combined effects of these two treatmen...
Quantitative and qualitative evaluation of weed seed bank in organic farming
organic farming weed seed bank manure
2010/1/13
The influence of organic farming on weed seed bank under two different crop rotations: with and without manure, was investigated in an organic farm of Kazliskiai over the period of 1997–2002. Proven b...