搜索结果: 1-10 共查到“作物耕作学 Weed”相关记录10条 . 查询时间(0.078 秒)
《Weed management in direct-seeded rice systems》（图）
Weed management in direct-seeded rice systems Bhagirath Singh Chauhan
2013/11/20
Direct -seeded rice systems have several advantages. Weeds, however, are considered one of the major biological constraints in these systems because there is no seedling size advantage as rice and wee...
Effects of cultural practices on weed flora in Virginia (flue-cured) organic tobacco (Nicotiana tabacum L.): green manure and irrigation systems
Allelopathy drip irrigation green manure organic tobacco sprinkler irrigation weed flora
2010/10/29
Organic tobacco is a new industrial crop. Field experiments were conducted, during 2005-2006, to determine the effects of irrigation system and green manure on weed flora in organic tobacco crops (Nic...
Non-chemical weed control in sugar beet crop under an intensive and conservation soil tillage pattern: II. Crop productivity
non-chemical weed control intensive and conservation soil tillage sugar beet crop mulch yield quality
2010/1/19
According to the results of the experiment, at lower temperature and average precipitation
vegetation conditions (2004), a significantly higher yield of sugar beet roots was found in
intensively t...
INFLUENCE OF TILLAGE METHODS AND NITROGEN FERTILISATION ON WEED EMERGENCE AND DEVELOPMENT IN WINTER TRITICALE
winter triticale soil tillage fertilisation with nitrogen weeds
2009/3/31
The paper presents the results of two experiments which covered the relationships between the tillage method (ploughing and non-plough tillage) and the level of nitrogen fertilisation (50 and 150 kg N...
DYNAMICS OF FIELD WEED INFESTATION DEPENDING ON THE CROP SPECIES AND WEED CONTROL METHOD IN SPRING BARLEY
weeds buckwheat oat spring barley
2009/3/31
The 1999-2000 experiment investigated the field weed infestation, depending on the crop species (spring barley, oat, buckwheat), and weed control methods in spring barley (post-emergence harrowing, Ch...
EFFECT OF REDUCED TILLAGE ON YIELD, WEED INFESTATION OF MAIZE AND SOIL PROPERTIES
maize reduced tillage direct drilling weed infestation physical and chemical soil
2009/3/30
The research was conducted in 1999-2002 at the Brody Experimental Station of the Poznań Agricultural University. The aim of this study was to determine the effect of tillage systems (conventional, red...
EFFECT OF VARIED CROP SEQUENCE AND CHEMICAL CONTROL OF THE STAND ON WEED INFESTATION OF OAT
oat weeds monoculture crop rotation chemical control, cultivars
2009/3/30
This paper presents a study on the effect of a 26- to 31-year monoculture on the weed infestation of two oat cultivars with and without chemical control. The 6-year study was carried out in a static ...
EFFECT OF MULTI-YEAR DIFFERENTIATED FERTILISATION ON THE WEED INFESTATION OF SPRING BARLEY AND WINTER WHEAT IN CROP ROTATION
multi-year fertilisation weed infestation spring barley winter wheat crop rotation
2009/3/30
The aim of the present studies carried out over 1994-1998 was to define the effect of multi-year fertilisation with straw + NPK, NPK only, manure only, manure with: PK, NK, NP, NPK, NPK + Ca and no fe...
Effect of preceding crop, soil tillage and herbicide application on weed and winter wheat yield
preceding crop soil tillage and herbicide application weed winter wheat yield
2010/1/18
Effect of preceding crop, soil tillage and herbicide application on weed and winter wheat yield.
Cultivar, Weed and Row Spacing Effects on Some Agronomic Characters of Safflower（Carthamus tinctorius L.）in Spring Planting
Cultivar Weed Row Spacing Agronomic Characters of Safflower Spring Planting
2009/1/23
Safflower ( Carthamus tinctorius L.) can be a potential oilseed crop for the low-rainfall areas of Central Anatolia, Turkey. The purpose of this study was to determine response of safflower cultivars ...