这项研究探索了Msilale村棉花(GossypiumhirsutumL.)生产的经济动态,ChatoDistrict,坦桑尼亚。实验采用因子设计,播种日期为11月25日,12月15日,1月4日,和磷水平分别为0、20、40和60kgPha-1,重复三次。结果表明,与1月(3.8tha-1)相比,11月和12月播种的棉花产量(6.1tha-1和6.3tha-1)显着提高。这是11月和12月播种的棉花单产分别增加了61%和66%,分别相对于1月播种。虽然不重要,施用20kgPha-1和40kgPha-1分别产生5.8tha-1和5.4tha-1,而60千克Pha-1的产量为5.3吨ha-1。相对于绝对对照和60kgPha-1施用,在20和40kgPha-1下棉花产量分别增加了9.4%和1.9%。经济分析显示,播种较晚(1月)的净利润最低(Tshs。3,723,400≈1,486美元),效益成本比(BCR)为11.2。早期播种记录更高的净利润(Tshs。6,679,527≈2,666美元和Tshs。6,861,283≈2,738美元)和BCR(分别为18.4和18.8)。与晚播相比,早播的净收益增加了79%(BCR=64%)和84%(BCR=68)。施用20、40和60kgPha-1可带来Tshs的净收益。5,452,572≈2,176美元(BCR=19.2),Tshs.5,209,904≈2,079美元(BCR=15.1),还有Tshs.5,748,786≈2,294美元(BCR=14.1),分别,在20kgPha-1时具有显著的BCR(p=0.017),表明成本效益。与60kgPha-1施用相比,在20和40kgPha-1下分别具有36%和7.1%的经济效益。优化播期和磷水平可以提高棉花生产的经济效益,促进可持续性。
This study explored the economic dynamics of cotton (Gossypium hirsutum L.) production in Msilale village, Chato District, Tanzania. The experiment utilized a factorial design with sowing dates on November 25th, December 15th, and January 4th, and phosphorus levels at 0, 20, 40, and 60 kg P ha-1, replicated three times. Results indicated significantly higher cotton yields (6.1 t ha-1 and 6.3 t ha-1) for November and December sowings compared to January (3.8 t ha-1). This is a 61% and 66% increase in cotton yields for November and December sowings, respectively relative to January sowing. Though not significant, 20 kg P ha-1 and 40 kg P ha-1 applications yielded 5.8 t ha-1 and 5.4 t ha-1, respectively, while 60 kg P ha-1 yielded 5.3 t ha-1. This is a 9.4% and 1.9% increase in cotton yields at 20 and 40 kg P ha-1, respectively relative to absolute control and 60 kg P ha-1 application. Economic analysis revealed that late sowing (January) had the lowest net profit (Tshs. 3,723,400 ≈ USD 1,486) and benefit-to-cost ratio (BCR) of 11.2. Early sowings recorded higher net profits (Tshs. 6,679,527 ≈ USD 2,666 and Tshs. 6,861,283 ≈ USD 2,738) and BCRs (18.4 and 18.8, respectively). This is a 79% (BCR = 64%) and 84% (BCR = 68) increase in net benefits from early sowings compared to late sowing. Applications of 20, 40, and 60 kg P ha-1 resulted in net benefits of Tshs. 5,452,572 ≈ USD 2,176 (BCR = 19.2), Tshs. 5,209,904 ≈ USD 2,079 (BCR = 15.1), and Tshs. 5,748,786 ≈ USD 2,294 (BCR = 14.1), respectively, with a significant (p = 0.017) BCR at 20 kg P ha-1 indicating cost-effectiveness. This is a 36% and 7.1% economic benefit at 20 and 40 kg P ha-1, respectively compared to 60 kg P ha-1 application. Optimizing sowing dates and P levels can boost economic returns in cotton production and promote sustainability.