Spring-planted rice D You 68, a variety recommended by the Ministry of Agriculture

D You 68 is a three-line hybrid mid-season rice bred by the Rice Research Institute of Sichuan Agricultural University. It was approved by the Sichuan Provincial Crop Variety Approval Committee in 1997.

Its whole growth period is 4-5 days longer than that of Shanyou 63, and it belongs to the late-maturing medium indica combination. Plant height 120 cm, growth uniform, plants luxuriant, tillering ability relatively strong, high ear-bearing rate, large panicles with many grains, panicle length about 23 cm, grains per panicle 187-194, seed setting rate about 80%, 1000-grain weight 26.3-27.7 g. Wide adaptability, strong stress resistance, good color at maturity, relatively great flexibility in seedling age, showing high and stable yield, with a general yield of 8250-9750 kg/ha. Good grain quality, brown rice rate 82.1%, milled rice rate 72.2%, head rice rate 66.5%, grain length-width ratio 3.39, chalkiness rate 62%, amylose content 20.9%, with the main grain quality standards reaching the ministry-issued first-class or second-class high-quality rice standards. Resistant to rice blast.

Suitable for planting as single-season late rice in Sichuan, Chongqing, Henan, Shaanxi, Anhui, Hubei, Yunnan and other provinces.

Key points of cultivation techniques: sow at the right time, sow thinly to cultivate strong seedlings. Transplant at the right time, plant at a reasonable density, and insert enough basic seedlings. Fertilization should be based mainly on base fertilizer, supplemented by topdressing; mainly organic fertilizer, supplemented by chemical fertilizer, and apply phosphorus and potassium fertilizer to increase yield. Strengthen field management, control insects but not diseases.