关键词: 追溯, 追溯

Abstract:

With ‘Bainong Aikang 58’ as experimental material, the effects of ploughing and fertilization measures on the growth and grain yield characteristics of winter wheat were studied in mid Henan Province during 2008-2009. The experimental field was ploughed deeply during 2007-2008. In this experiment, 2 ploughing measures were arranged, and the tilling depth was 20 cm (A1) and 40 cm (A2), respectively. Under each ploughing measure, 3 fertilization treatments were set by random block design, which were compound fertilizer 750 kg/hm2 only (B1), compound fertilizer 750 kg/hm2 with chicken manure 1500 kg/hm2 (B2), and compound fertilizer 750 kg/hm2 with bean cake fertilizer 3000 kg/hm2 (B3), respectively. The results showed that A1 was more beneficial for wheat growth than A2 on plant height and population, chlorophyll content in leaves and dry matter accumulation per stem. From the fertilization measures, chlorophyll content in leaves and dry matter accumulation per stem was higher under B3 measure. Spike number and grain number per spike tended to be highest under A1B3, so the yield was also higher. Summing up the above, A1B3 was the considered measure in mid Henan Province.