Weeding


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Weeding

 

the removal of undesirable plants from cultivated fields and forests. Weeds can be destroyed mechanically, chemically, and manually. Mechanical weeding is done by cultivators that undercut the weeds growing between row crops and in orchards and vineyards. Harrows are used before and after the shoots emerge; their teeth pull out the weeds and destroy them. Chemical weeding involves the use of herbicides. Weeds are removed manually on seed-raising plots and on small plots planted with valuable crops. Manual weeding is used to some extent in drill rows and hills of row crops. Weeding is done in the earliest phase of weed growth. Any delay greatly inhibits crop growth and causes a sharp decrease in yield. Weeding may also be used to remove cultivated plants of undesirable species or varieties.

References in periodicals archive ?
[m.sup.-1]) (kg [ha.sup.-1]) Weedy 42.40 1593.33 Weed free 60.00 4920.00 Sesbania co-culture + 48.70 3180.00 cutting residue incorporation at 35 DAS Sesbania co-culture fb 2, 48.80 3360.00 4 D 0.50 kg [ha.sup.-1] at 35 DAS Pendimethalin 1 kg 53.60 3888.27 [ha.sup.-1] fb hand weeding at 30 DAS Pretilachlor 52.40 3570.00 0.5kg[ha.sup.-1] fb hand weeding at 30 DAS Pendimethalin 1 kg 55.40 4290.00 [ha.sup.-1] fb Mspyribac 0.025 kg [ha.sup.-1] at 18 DAS Pretilachlor 0.5 kg 54.75 4280.00 [ha.sup.-1] fb bispyribac 0.5 kg [ha.sup.-1] at 18 DAS SEm [+ or -] 1.62 158.01 C.D.
To determine the influence of weeding on population of the whitefly on tomato crop, the experiment was conducted at agricultural experimental field of institute of Plant Protection, Sindh Agriculture University, Tandojam-Pakistan during summer 2015.
Or, dig a trench around your garden and fill it with finely cut wood chips or sawdust to form a soft "moat" that's easy to slice through with a sharp spade, manual lawn edger, or nimble weeding tool, such as the long-handled Cobrahead weeder (pictured left), which has a nose for weeds trying to jump a mulched moat.
In glass house condition all rice varieties exhibited significant differences in plant height at all sampling dates (Table 3) however interaction between rice varieties and weeding regime was not significant.
Weed flamers are an excellent tool for weeding along fences, in cracks between pavers, in lawns, and around trees and shrubs.
Dandelions will still float in on their tiny parachutes - and the holes left by weeding will not always be hidden by grass.
Sometimes, when I'm weeding, the simple action of plunging the fork into the earth, uprooting the plant, and shaking loose the soil that clings to its roots is very soothing.
Some of the devices are designed to help people avoid bending over to pick up weeds and others claim to hasten the weeding process.
The weed-free trial was treated with pre-emergence herbicide Ronstar (oxadiazon) at the recommended rate just after seeding and immediate sprinkler irrigation and was kept weed-free during the whole growing season by hand weeding as needed.
DGPS will indicate if the weeding robot is outside the field, inside the field at one of the headlands, or inside the field and not at the headlands.
Heavier strapping I use for larger weeds, so I have a number of the weeding hoes for different weeding jobs.