A New Cotton Seed Balling Technology and Its Influence on Cotton Seedling Emergence,Yield and Quality
JX0010,an early maturing cotton variety bred by the Cotton Research Institute of Hunan Agricultural University,were used as the test material,and the cotton seeds were balled with cassava modified benign starch,bentonite,diatomite,attapulgite and seedling substrate,and a re-split experiment of three factors including seed treatment,sowing date and sowing density were carried out in the experiment base of Hunan Agricultural University to explore the effects of seed balling on cotton emergence rate,growth period,fiber quality and yield.The results showed that the growth period of cotton after seed balling was 101-108 d,which was significantly shortened by 15-18 d compared with 116-126 d of direct seeding.The emergence rate and emergence hole rate of cotton seeds after balling treatment were 19.63％-25.00％and 14.82％-20.74％,and higher than those of direct seeding,respectively.Compared with seed direct seeding,the number of bolls per plant,single boll weight,seed cotton yield and lint yield of cotton after balling treatment were significantly increased.Seed treatment had no significant effect on fiber quality,but it changed to a certain extent under the interaction of various factors.Comprehensive analysis showed that the treatment of seed balling could improve the emergence rate of cotton seeds,shorten the growth period and achieve higher yield.
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