Field Experiment for the Effects of Rice Straw Returning and Seeding Pattern on Wheat Seedling Emergence and Grain Yield

• Published in: Hunan agricultural science & technology newsletter : HASTN Vol. 18; no. 12; pp. 2357 - 2382
• Main Authors: Zhang, Simei, Gu, Kejun, Fan, Pingsheng, Xu, Bo, Zhang, Chuanhui, Gu, Dongxiang, Zhang, Henggan, Yu, Jianguang, Yang, Sijun
• Format: Journal Article
• Language: English
• Published: Changsha Wu Chu (USA-China) Science and Culture Media Corporation 01.12.2017
• Subjects: Agricultural production; Agriculture; Crop yield; Farm machinery; Grain; Nitrogen; Rice; Rice straw; Science; Seeding; Seedlings; Straw; Studies; Triticeae; Wheat; Huaihe River
• ISSN: 1009-4229

The grain yield for the treatment with rice straw removal was 6 091.34 kg/hm2, while that with rice straw returning to field was 6 476.20 kg/hm2, and both were higher than the yields of the other two seeding patterns. [...]mechanical uniform planting was?recommended for its higher emergence rate, better emergence uniformity, which was conductive to increase grain yield in wheat after rice production with rice straw returning to field. The planting area of wheat after rice in the north of Huaihe River accounts for over 70% of the total wheat planting area in Jiangsu Province, and the proportion of wheat after rice reaches as much as 80% in the south of Huaihe River. [...]the production level of wheat after rice is directly related to the production and sustainable development of wheat in Jiangsu Province131. Among the treatments with rice straw mechanized returning to field, the yield was in the order of mechanical uniform planting > manual broadcast sowing > mechanical seeding in drill, and there was no significant difference between mechanical uniform planting and manual broadcast sowing, while the yield of the treatment with mechanical seeding in drill was significantly lower than that of the other seeding patterns. [...]the yield of treatment with mechanical uniform planting was the largest under both rice straw removal and rice straw returning treatments, mainly due to its higher number of grains per spike and 1 000-grain weight. [...]the use of wheat uniform planting machine for mechanical uniform planting could not only improve the operation coefficient, but also can have high field emergence rate and good emergence uniformity, and the grain yield is also relatively higher. [...]mechanical uniform planting can efficiently improve the field emergence rate of wheat after rice and the emergence uniformity, thereby obtaining higher grain yield, which is particularly obvious under the conditions of rice straw returning to field. The grain yield for the treatment with rice straw removal was 6 091.34 kg/hm2, while that with rice straw returning to field was 6 476.20 kg/hm2, and both were higher than the yields of the other two seeding patterns. [...]mechanical uniform planting was recommended for its higher emergence rate, better emergence uniformity, which was conductive to increase grain yield in wheat after rice production with rice straw returning to field.