Seasonal emergence of selected summer annual weed species in dependence on soil temperature

Jursík, M.; Holec, J.; Soukup, Josef; Venclová, V.

doi:10.17221/22/2010-pse

Cited by 2 publications

(2 citation statements)

References 15 publications

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“…Weed emergence before flame weeding appeared to be stimulated by the 6 mm precipitation after the first drilling (Table 1 and Figs 3 and 4) in 2009. However, the otherwise very dry weather conditions in this year may explain the lower average flame weeding effects compared with 2008, because dry soil conditions delay and slow weed emergence (Jursik et al. , 2010).…”

Section: Discussionmentioning

confidence: 99%

Punch planting, flame weeding and delayed sowing to reduce intra‐row weeds in row crops

et al. 2011

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Rasmussen J, Henriksen CB, Griepentrog HW & Nielsen J (2011). Punch planting, flame weeding and delayed sowing to reduce intra‐row weeds in row crops. Weed Research51, 489–498. Summary Punch planting has recently been suggested as a technique to reduce intra‐row weeds in organically grown row crops. The technique is to punch holes in the ground and seeds are then inserted, with a minimum of soil disturbance outside the hole. Two series of experiments with a tractor‐mounted prototype of a dibber drill (MK III) are presented. In the first series, three crop establishment procedures were compared over 2 years at five different sowing dates in sugar beet and direct‐sown onion. The crop establishment procedures were as follows: (i) normal sowing and mechanical control of weeds in the stale seedbed (N), (ii) N + pre‐emergence flame weeding (N + F) and (iii) punch planting and flame weeding to control weeds in the seedbed prior to crop emergence (P + F). The difference between N and N + F treatments quantifies the effect of pre‐emergence flame weeding, and the difference between N + F and P + F quantifies the effect of punch planting. Punch planting reduced the average intra‐row weed density by 37% in onion but had no main effect in sugar beet. In the second series of experiments in carrot, which compared the N + F and the P + F treatments only, punch planting reduced the average intra‐row weed density by 34%. Pre‐emergence flame weeding reduced the average weed density by 59% in onion and by 47% in sugar beet. Delayed sowing without pre‐emergence flame weeding only reduced weed emergence in 1 of 2 years, whereas delayed sowing had a more pronounced effect in flame‐weeded (N + F) and punch‐planted plots (P + F). In sugar beet and onion, there were complex interactions between crop establishment procedure, year and delayed sowing, which are partly explained by weather conditions and species‐specific germination patterns. It was concluded that technical improvements to the dibber drill (MK III) are required to take advantage of punch planting to reduce intra‐row weed densities.

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Section: Discussionmentioning

confidence: 99%

Punch planting, flame weeding and delayed sowing to reduce intra‐row weeds in row crops

et al. 2011

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“…Analysis of weed incidence in separate crops of the rotation shows that in 2008 the prolonged drought lasting from April 20 to June 16 (57 days with the amount of precipitation as low as 15.6 mm) resulted in a low weed incidence in the crops of winter triticale (Table 1). Literature sources indicate that weed incidence in field crops is determined by meteorological conditions, especially the amount of precipitation in spring (Auškalnienė, 2006;Deveikytė et al, 2008) and soil moisture (Jursík et al, 2010). Analysis of variance indicated that soil tillage method had a significant impact on the weed incidence in winter triticale crops (the amount of weeds F act.…”

Section: Resultsmentioning

confidence: 99%

The influence of primary soil tillage on soil weed seed bank and weed incidence in a cereal-grass crop rotation

Skuodienė

Karčauskienė

Ciuberkis

et al. 2013

Zemdirbyste-Agriculture

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A field experiment was carried out at Vėžaičiai Branch of Lithuanian Research Centre for Agriculture and Forestry during the period 2008-2011. The study was aimed to determine the effects of various soil tillage methods: deep ploughing (20-25 cm), shallow ploughing (10-12 cm), shallow ploughless tillage (8-10 cm) and soil fertility improvement measures (plant residues, plant residues + straw, green manure 1 st cut + straw, green manure 2 nd cut + straw, farmyard manure 40 t ha -1 + straw) on the soil weed seed bank and weed incidence in a cereal-grass crop rotation. The soil of the experimental site is Dystric-Epihypogleyic Albeluvisol (ABg-p-w-dy) with a texture of sandy loam. In all experimental years, primary soil tillage had a significant influence on weed incidence in the crops of the rotation and on soil weed seed bank. The greatest amount of weeds, both in numbers and dry mass, in the crops of winter triticale and spring rape was determined in the shallow ploughless tillage treatment, in the crops of spring barley in the shallow ploughing treatment, and in the sward of red clover in deep and shallow ploughing treatments. All soil fertility improvement measures and their interaction with soil tillage methods did not have any substantial influence on the weed incidence in the rotation crops. The soil weed seed bank was 1.5 and 2.2 times greater in the shallow ploughing and shallow ploughless tillage treatments, compared with the conventional tillage treatment (deep ploughing). The influence of soil tillage methods manifested itself not only directly, but also through its interaction with soil fertility improvement measures. Regardless of the chosen soil fertility improvement measure, in all the treatments of shallow ploughless tillage, the soil weed seed bank was significantly greater, compared with the conventional soil tillage treatments. In the shallow ploughing and shallow ploughless tillage treatments there were found 25.5% and 41.5% more weed seed species in the soil, compared with the conventional tillage treatment. The seeds of Chenopodium album L., Persicaria lapathifolia L., Fallopia convolvulus L. and Viola arvensis Murray were found in all tillage treatments. The distribution of F. convolvulus L., P. lapathifolia L. seeds was significantly influenced by soil tillage only, that of V. arvensis Murray by soil tillage and its interaction with soil fertility improvement measures, and that of Ch. album L. by soil fertility improvement measures only.

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Seasonal emergence of selected summer annual weed species in dependence on soil temperature

Cited by 2 publications

References 15 publications

Punch planting, flame weeding and delayed sowing to reduce intra‐row weeds in row crops

Punch planting, flame weeding and delayed sowing to reduce intra‐row weeds in row crops

The influence of primary soil tillage on soil weed seed bank and weed incidence in a cereal-grass crop rotation

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