棉花施用惠满丰有机复混肥增产效应研究

A Study of growth-effect of huimanfeng on cotton

在当季不施肥,皮棉产量50kg/667m^2以上的生产条件下,棉花施用惠满丰有机复混肥30-70kg/667m^2,伏前桃增加1-1.5个,株高增加9.9-17.1cm,茎粗增加0.2-0.8mm,有效果枝增加约1.3个,单株成铃数增多1.1-3.1个,单铃重约增加0.4-0.5g,霜前花率提高3-9个百分点,衣分、子指也有所提高,比对照增产皮棉14.1-31.8kg/667m^2,增幅27.4％-61.1％(平均45％)。在等养分量情况下,惠满丰有机复混肥肥效优于化肥。惠满丰有机复混肥的经济合理施肥量为70kg/667m^2。

In the condition of production that the ginned cotton output is over 50kg . 667m-2 when no fertilizing, we apply compound - mixing manure Huimanfeng 30 -70kg . 667m-2 , the amount of cotton boll ago dog days can be increased 1 -1.5, the. plant hights can increased by 9. 9 - 17. 1cm, the stem thickness by 0. 2-0. 8mm, the amount of effectiue boll - bearing branch by about 1. 3 , the amount of cotton boll per plant by 1. 1 -.3.1, the weight per cotton boll by 0. 4- 0. 5g, the rate of ripe cotten boll by 3% - 9% . the percentag of the ginned cotton and the weight of 100 cotton seeds also can increase, the amount of the ginned cotton output can increase by 14. 1 -31. 8kg . 667m-2 comparing with the CK, the amount of increase in production is 27.4% -61.1% the average amount is 45 % . When the soil nutrient amount is equal. the Huimanfengs effect is better them the chemical fertilizers. The economical and suitable amount of Huimanfeng is 70kg . 667m-2 .