Weed Management in a Small Scale Organic Production System

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Source:

https://www.youtube.com/watch?v=jsqa6cahRxI

Duration: 

00:17:44

Year of Production: 

2015

Source/Author: 

Martha Brown
»Organic weed control techniques used at the UC Santa Cruz Farm, including both mechanical cultivation and hand hoeing. The techniques emphasize cultivation at proper soil moisture to minimize impacts on soil structure.«

Being a key factor in agriculture, soil fertility determines the quality and quantity of the crop grown in a given piece of land.

As weed management continue to be a challenge facing organic growers, increased weed seed banks reduce yield and the major components to weed management are crops, over head irrigation pipe and make it drip about 10 to 14 days later.

Weed management

As timing is key to weed management, the block is watered at sowing for 1 inch watering overhead and at 4 days later, 1/2 inch of over head watering is done. At day 7/ 3 days later, water overhead at 1/2 inch and at day 11 it will be ready for cultivation.

Similarly, use optimal water for plant growth and ensure proper cultivation, weed as early as possible at 10-14 days using low density weeding technique and high density weeding to kill weeds as full density weeding technique takes a lot of time. After top bed weeding, use a bar cultivator after setting it well.

When setting a system, a space of 72 inches is left from one centre tractor tyre to another tractor tire. Set 3 sweeps at distance of 36 inches from one to another as the cultivator should be more less in centre of tractor.

Furthermore, key component of cultivation are sweeps, frog chisel to break up the additional compaction of tractor to soil and another component is side knife which work onside of beds. Sweep should lie under dead centre of tractor hire for good operation.

Finally when bringing tractor into field, remember where beds were shaped, lay drip tape on bed fro drip irrigation and re wet the furrows to germinate more weeds.

Sequence from Sequence to Description
00:0000:19Weed management is a challenge facing organic growers.
00:2000:42Increased weed seed bank reduce yield.
00:4301:10Timing is key to weed management.
01:1101:37Key components to weed management are establish crops.
01:3801:42Another is overhead irrigation pipe and make it drip about 10-14 days later.
01:4301:53The block is watered at sowing for 1 inch watering overhead.
01:5401:594 days later, 1/2 inch of overhead watering id done.
02:0002:043 days later at day 7, water overhead at 1/2 inch.
02:0502:22At day 11 it will be ready for cultivation.
02:2302:29Key component is to make overhead schedule 2 inches for 2 weeks.
02:3003:20Use optimal water for plant growth and ensure proper cultivation.
03:2105:11Weed as early as possible at 10-14 days.
05:1207:25Use low density weeding technique, high density weeding technique to kill weeds.
07:2609:41Full density weeding technique takes a lot of time.
09:4210:05After, top bed weeding, use a bar cultivator after setting it well
10:0610:15When setting a system, a space of 72 inches is left from one centre tractor tyre to another.
10:1610:43Set 3 sweeps at distance of 36 inches from one to another.
10:4411:13Cultivator should be more less in centre of tractor.
11:1411:55Key component of cultivator are sweeps, frog chisel.
11:5613:04Another component is side knife which work on side of bed.
13:0514:48Sweep should lie under dead centre of tractor tire for good operation.
14:4916:46When bringing tractor to field, remember where beds were shaped.
16:4716:56Lay drip tape on beds for drip irrigation.
16:5717:10Re wet the furrows to germinate more weeds.
17:1117:44Summary

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