搜索结果: 1-4 共查到“农学 weed competition”相关记录4条 . 查询时间(0.076 秒)
Influence of micro-relief and weed competition on natural regeneration of mountain forests in the Šumava Mountains
Czech Republic micro-relief mountain forests natural regeneration weed competition
2015/3/19
Natural regeneration and its relationship to micro-relief and weed competition were studied on 6 research plots in mountain spruce forests in the Šumava Mountains. The data on density regeneratio...
Genotypic Variation in Ability to Recover from Weed Competition at Early Vegetative Stage in Upland Rice
Improved cultivar Laos Recover from weed competition Slash-and-burn Traditional cultivar Upland rice
2010/3/4
In northern Laos, weeds are a major constraint to upland rice production in slash-and-burn systems. Two experiments were conducted to assess genotypic variation in ability to recover from weed competi...
EFFECT OF WEED COMPETITION PERIOD ON YIELD AND YIELD COMPONENTS OF WHEAT
Triticum aestivum weed control agronomic characters Pakistan
2009/9/29
Weeds competition in wheat (Triticum aestivum) crop was investigated at Adaptive
Research Farm, Gujranwala during rabi, 2003-2004 and 2004-2005. The treatments
comprised weed competition with crop f...
Determination of weed competition critical period in red beet
weed competition critical period red beet
2010/1/14
Determination of weed competition critical period in red beet.