A New Cotton Variety Yinmian 2

The whole growth period of Yinjin 2 in Dafeng is 135 days, which is 2 days longer than Xiangzamian 8 and Siza 3; the plant height is 112 cm, the initial node of fruit branch is 7.2 nodes, and there are 21 fruit branches per plant; the average number of bolls per plant is 44.3, prefrost flower rate is 72.5%, lint percentage is 39.4%, seed index is 9.5 grams; medium boll size, boll weight 5.7 grams, thin bell shell, smooth boll opening. The per mu yield of seed cotton and lint cotton was 316.2 kg and 125kg respectively, 2.3% and 9.5% higher than Xiangza 8, 8.4% and 9.1% higher than Siza 3, and resistant to Fusarium wilt and Verticillium wilt.

Key points of cultivation techniques: the suitable sowing time in the coastal cotton area is around April 5, and the nutrient bowl is used to raise seedlings. Plastic film mulching cultivation, appropriate close planting, generally medium fertility fields planted 1500-1600 plants per mu. Increase the amount of fertilizer applied throughout the process. Before transplanting, apply sufficient base fertilizer, mainly organic fertilizer and nitrogen, phosphorus and potassium compound fertilizer, pay attention to the application of potassium fertilizer; appropriate topdressing; heavy application of flower and boll fertilizer, applied twice, the first light after the heavy; external topdressing in the later stage, in order to help cover the top of autumn peach and prevent the premature senescence of cotton plants. Chemical regulation adopts the method of appropriate chemical control in the middle and early stage and reducing the times and dosage of chemical control in the later stage. The first generation and the second generation of cotton bollworm generally do not need to use drugs to control, the third and fourth generation of cotton bollworm control according to the insect situation. Pay attention to the control of insect pests such as Toona sinensis, Bemisia Tabaci and Spodoptera litura. The coastal cotton area must build a whole water system and do a good job of cultivating soil and roots in order to improve the ability to resist typhoons and prevent waterlogging and waterlogging.