Plastic film mulching does not increase the seedcotton yield due to the accelerated late-season leaf senescence of short-season cotton compared with non-mulching

Ridge intertillage alters rhizosphere bacterial communities and plant physiology to reduce yield loss of waterlogged cotton

In order to improve the spraying efficiency of cotton chemical topping agents, a field experiment was conducted to compare the effects of 250 g·L−1 mepiquat chloride aqueous solutions sprayed by a T30 unmanned aerial vehicle (UAV) and a boom sprayer. The cotton agronomic parameters, pesticide utilization rate, yield, and fiber quality were determined. The results showed that the pesticide utilization rates of the T30 UAV and the boom sprayer were 48.71% and 30.37%, respectively. After 10, 20, 30, and 40 days of T30 UAV spraying, the plant height inhibition rates of the two varieties of cotton were 12.97%, 13.78%, 20.91%, and 26.14% for Xinluzao 52 and 8.64%, 13.37%, 14.72%, and 18.03% for Huiyuan 720. After spraying with a boom sprayer, the plant height inhibition rates were 7.94%, 11.13%, 18.23%, and 23.69% for Xinluzao 52 and 6.09%, 9.98%, 11.78%, and 15.14% for Huiyuan 720 after 10, 20, 30, and 40 days of spraying. The T30 UAV spraying chemical topping agent was shown to have a significant beneficial effect on the utilization rate of the pesticides, as well as the agronomic properties, yield, and the fiber quality of the cotton.

https://www.mdpi.com/2073-4395/12/7/1625/pdf?version=1657106604

Comparison of the Effects of Chemical Topping Agent Sprayed by a UAV and a Boom Sprayer on Cotton Growth

Alternate intercropping of cotton and peanut increases productivity by increasing canopy photosynthesis and nutrient uptake under the influence of rhizobacteria

Xinjiang, located in northwestern China, has emerged as the predominant cotton-growing region in China and one of the world's largest cotton producers. Despite its arid climate, limited water and heat resources, and prevalent soil salinity issues, Xinjiang has undergone a remarkable transformation in cotton production over the past three decades. Through continuous advancements in cotton cultivation techniques, there has been a consistent improvement in cotton yields, rising from an average of 1500 kg ha−1 during 1995–2000–1800 kg ha−1 during 2006–2010, and further to 1950 kg ha−1 during 2016–2020, achieving a remarkable "triple jump." This review employed a comprehensive methodology, including literature reviews, statistical data retrieval, consultations with experts and local officials, and interviews with cotton farmers. An analysis of the historical development of cotton cultivation techniques in Xinjiang identified three generations (3Gs) of cultivation technology systems: "close planting, dwarfing and early maturation" system, "drip irrigation-based fertigation" system, and "light, simplified, and high-efficiency" system. A systematic assessment was conducted, evaluating the performance and contributions of these technologies, accompanied by a multidimensional interpretation of the underlying mechanisms. The cultivation technology systems in Xinjiang have progressed over three generations, each focusing on different aspects and building upon the previous one. The first-generation (1 G) system emphasized the effective utilization of light and heat resources, while the second-generation (2 G) system aimed to improve water and fertilizer use efficiency. The third-generation (3 G) system prioritized achieving cost-effective cotton production. These region-specific systems facilitated the integration of agronomic techniques and mechanization, ensuring the efficient utilization of resources. As a result of these advancements, cotton yield and profitability in Xinjiang have consistently increased, making a significant contribution to high-yielding and efficient cotton production in Xinjiang. The adoption of three generations of distinctive Chinese cotton cultivation technology systems has efficiently harnessed resources, propelling Xinjiang's cotton yield to global prominence. This review provides valuable insights into the underlying principles and inevitability of the 3Gs in Xinjiang. Moreover, it serves as a reference and inspiration for other countries aiming to advance their own cotton cultivation techniques. 

Xinjiang cotton: Achieving super-high yield through efficient utilization of light, heat, water, and fertilizer by three generations of cultivation technology systems

Plant pruning affects photosynthesis and photoassimilate partitioning in relation to the yield formation of field-grown cotton

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Plant pruning affects photosynthesis and photoassimilate partitioning in relation to the yield formation of field-grown cotton