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Agriculture Frequently Asked Questions

 
  Home > Technical library > Agriculture Frequently Asked Questions  
FAQ's

Q – At what time of year can I sow this mixture?
A – The main limiting factor to grass seed germination and growth is soil temperature. Italian, Hybrid and Westerwolds ryegrasses will germinate at a soil temperature of 3ºC, where as Perennial ryegrass requires a soil temperature of 5ºC and white clover needs higher temperatures. This limits the periods of the year when grass mixtures can be sown, as a guide Italians can be sown from the end of February until early November, Perennial ryegrass from mid March until the end of September and mixtures including clover, from the end of March until early September, this allows for a successful growth period following sowing to allow the sward to establish.
The optimum time for all grass seeds is between April and early September when neither moisture nor temperature are limiting factors.

Q – How deeply should I sow this mixture?
A – All grass and clover seeds are small, so they need to be planted in a shallow seedbed, Clovers and perennial ryegrass should be no deeper than 10mm, Italians can go a little deeper, down to 15mm.

Q – How firm does the seedbed need to be?
A – Because the seed is so small, with very small reserves of energy, it is essential that there is a good contact at sowing, between seed and soil. This allows the seedling to draw nutrients through its new root structure, therefore the seedbed should be as firm as is possible.

Q – What seed rate should I use?
A – Barenbrug supply all their grass seed in acre (0.4 hectare) packs, with the sowing rate calculated to give the optimum amount of seed per acre (hectare)

Q – If I am overseeding, what rate should I sow at?
A – The rate depends on how badly damaged the old sward is, but if the aim is to rejuvenate an old sward, half to two-thirds of a full seed rate is normally adequate. If the intention is to introduce clover into an existing sward, sow the seed at 0.5-1.5 kgs per acre (1.25 – 3.75 kgs/hectare)

Q – Should I broadcast or drill the seed?
A – There is no easy answer to this question, normally the further south and east you are the more likely you are to drill, conversely the further north and west, the more likely to broadcast. Both systems work, but the regional differences are due to the availability of moisture. Where moisture tends to be short, drilling puts the seed in the soil beside moisture, in areas where moisture is not a limiting factor, broadcasting and harrowing works well.

 
 
 
 
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