Sweet potato is a plant grown in both upland farmers Phichit province and area, according to the report ข้อมูลภาวะ manufacturing plants yearly group crop plant sweet potato. Annual 2555 / 56 Province during the months of May and 2555 to April B.Professor 2556 found that planting sweet potato planting area of district are all equal 620 rai. The average yield is harvested, as 712 000 kg. And the average output / space, reap equal 1 186.67 kg. The price that farmer average 8.09 per kilogram, the growing 2 district including Pho thale District, an area of growing number of 20 Rai and district bueng Na rang the 600 rai (Department of agriculture.2556) sweet potato growers province. The growing popularity of sweet potato kind meat purple. This is referred to as the seed shrimp paste, meat is dark purple. Yield, average 1900 kg per hectare, but farmers also planted sweet potato yield low. Due to soil management fertilizer with unsuitable varieties. The fertilizer is one important factor to help increase yield and quality of potato.Go and may vary in each breed with
.So the technology of fertilizer based on the value analysis is a way to be able to increase the productivity and quality can be very rewarding and not more than necessary. Department of agriculture by agricultural research and development center of Phichit.Printer.65-3 head shape oval head with red skin, flesh color, the size of the average head width 3.5 cm long, 13.6 cm, harvesting 90-110 days. The average yield, 2 100 kgs per acre. (bureau of agricultural research and development, 22554) is a species of potential in the market competition. Because the direct according to the market need. The comparison test with fertilizer proper with varieties of farmers and ใส่ปุ๋ย way farmers to บัติอ are original.
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