在大田条件下,设计了品种生育特性和不同种植方式的生育特性研究2个试验。结果表明,中棉所70果节和成铃形成高峰早、峰值高;成铃率高,但后期果节形成和成铃量较低,群体果节量偏低,易早衰。不同种植方式的生育特性研究表明,春棉地膜直播处理由于早发、现蕾、成铃集中的特点更加突出,后期易早衰,因而不宜应用;春棉地膜双秆处理能充分发挥品种现蕾、成铃集中的特性,且避免了地膜直播处理早衰的不足,形成较高的群体总量,具有较好的早熟性和丰产性;麦后移栽棉在适当提高密度的前提下,其群体结构和产量可以达到一熟春棉的水平,尤其是麦后基质育苗移栽方式具有结铃优势强的特点,实行大麦后基质移栽具有产量形成的优势。 Under field conditions, two experiments were designed to study the characteristics of reproduction and the characteristics of reproduction in different planting methods. The results showed that the fruiting and boll forming of Zhongmiansuo 70 were earlier and the peak value was high. The boll rate was high, but the formation and boll amount of fruit were lower in the later stage. The research on the reproductive characteristics of different planting methods showed that the spring cotton mulching film direct seeding treatment was more suitable due to the characteristics of early onset, budding and boll concentration, The characteristics of boll-forming and avoid the shortcomings of direct seeding premature senescence, the formation of a higher total population, with good precocity and high yield; cotton transplanting cotton in the appropriate increase in density under the premise of its population structure And yield can reach the level of a maturity spring cotton, especially after transplanting wheat seedling substrate has the advantages of knot bolting superiority, the implementation of barley transplanting matrix has the advantage of yield formation.