新陆中73号

This variety is a high-yielding, conventional variety that is resistant to glyphosate, bollworm, and high temperatures.

This variety has a growth period of approximately 122-123 days. The plant is pyramidal in shape, with type II fruiting branches. The first fruiting branch node is at 6.2 nodes. The stems are sturdy, the leaves are dark green, and the leaves are duck-foot shaped and medium-sized. The stems have relatively few hairs. Seedlings grow vigorously, and growth is stable during the flowering and boll-forming stages. The fruiting branches are upright, resulting in an elegant plant shape with good ventilation and light penetration. Yield characteristics: Average single boll weight is approximately 7.0-7.8 grams, serrated lint percentage is 41.8%, boll setting is strong and concentrated, and the cotton fibers are large, white, and have good lint content.

The fiber has a flock length of 31.5 mm, a breaking strength of 32.7 cn/tex, and a micronaire value of 4.5.

The fiber has a flock length of 31.2 mm, a breaking strength of 31.4 cn/tex, and a micronaire value of 4.3.

It exhibits good low-temperature tolerance during the seedling stage; it is drought-resistant and heat-resistant; it is lodging-resistant; it is resistant to bollworm; it is tolerant to glyphosate; and it is resistant to wilt and Verticillium wilt.

大田生产中突出特点

●耐干旱、抗高温

●结铃性超强，双铃多

●抗枯萎耐黄萎病，衣分高

●耐草甘膦，抗棉铃虫

●株型清秀，透风透光好

●含絮力好，抗倒伏，宜机采

● Tolerant to glyphosate and resistant to bollworms

● Sleek plant structure with good ventilation and light penetration

● Good lint retention, lodging resistant, suitable for machine harvesting

● Drought-resistant and heat-resistant

● Excellent boll-setting ability, producing many double bolls

● Resistant to wilt and Verticillium wilt, high lint content

●播期：5厘米地温连续3天稳定通过12°C以上，播种密度21-22.5万株/公顷，收获密度18-19.5万株/公顷左右。

●施肥：施足底肥，以有机肥为主，追肥以黄腐酸钾、生物菌肥和氮磷钾配合使用，轻施苗肥，稳施蕾肥，重施花铃肥，盛花期后增施磷钾肥，叶面肥以锌肥、硼肥和磷酸二氢钾为主，肥料总投入以产定肥，配合使用。

●灌水：滴灌棉田，视土壤墒情7-10天滴一次，每次每亩用水量20-35m²，高温期缩短间隔天数。

●化控：全程化控，早控、勤控、轻控相结合，视棉苗长势确定化控用量。

●病虫害防治：注意病虫害防治，以防为主，防治结合。打顶：遵循“时到不等枝，枝到不等时”原则，机采棉密度高地块株高控制70-80cm左右。一模三行株高100-120cm为宜。

●脱叶：该品种对落叶剂较敏感，机采棉田脱叶剂使用根据田间密度、长势、气温灵活掌握时间和用量。

● Sowing Period: When the soil temperature at a depth of 5 cm has remained consistently above 12°C for 3 consecutive days, the sowing density should be 210,000-225,000 plants/hectare, and the harvest density should be approximately 180,000-195,000 plants/hectare.

● Fertilization: Apply sufficient base fertilizer, primarily organic fertilizer. Topdressing should consist of potassium humate, bio-fertilizer, and a combination of nitrogen, phosphorus, and potassium. Apply light seedling fertilizer, steady bud fertilizer, and heavy flowering and boll-forming fertilizer. After full bloom, increase phosphorus and potassium fertilizer application. Foliar fertilizer should primarily consist of zinc, boron, and potassium dihydrogen phosphate. Total fertilizer input should be determined based on yield and used in combination.

● Irrigation: Drip irrigation should be used for cotton fields, once every 7-10 days depending on soil moisture. Each irrigation uses 20-35 m² of water per acre. Shorten the interval during periods of high temperature.

● Chemical Control: Implement chemical control throughout the entire growth period, combining early, frequent, and light control. Determine the dosage based on the growth of the cotton seedlings.

● Pest and Disease Control: Pay attention to pest and disease control, focusing on prevention while combining treatment with preventative measures. Topping: Follow the principle of "topping at the right time, not waiting for branches; topping at the right time, not waiting for branches." In fields with high density of machine-harvested cotton, control plant height to around 70-80cm. For three rows per ridge, plant height should be 100-120cm.

●Defoliation: This variety is relatively sensitive to defoliants. The application of defoliants in machine-harvested cotton fields should be adjusted flexibly according to field density, growth vigor, and temperature, adjusting the timing and dosage accordingly.