In this way, the SOW (broadcasting) is the oldest method, which currently applies to some types of crops farmers who seed planting rates because this way, it will waste a lot of seeds. For example, rice paddies, planting the seed sown will be used at a rate of 1-2 per tank farm, or planting a seed sown to sorghum planting rate is about using 3-4 kilos per Rai. In this way, farmers planted must have expertise in the sow. it will make beginning dare sprout up tightly to make a dwarf plant diseases and Gran or make access easier, but even so the insects destroyed farmers try to resolve by way of withdrawal, isolation (thinning), to arrange for the proper spacing, so it works.
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