Crops ›› 2016, Vol. 32 ›› Issue (1): 82-85.doi: 10.16035/j.issn.1001-7283.2016.01.015

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Study on Growth Recovery Techniques of Rolling Belt Area in Milk Vetch after Rice Machine-Harvesting

Wu Jianfu,Zeng Yanhua,Zhou Chunhuo,Tan Xueming,Pan Xiaohua,Shi Qinghua   

  1. Key Laboratory of Crop Physiology,Ecology and Genetic Breeding,Ministry of Education/Key Laboratory of Crop Physiology,Ecology and Genetic Breeding of Jiangxi Province/Jiangxi Collaborative Innovation Center for the Modernization Production of Double Cropping Rice,Jiangxi Agricultural University,Nanchang 330045,Jiangxi,China
  • Received:2015-09-18 Revised:2015-11-17 Online:2016-02-15 Published:2018-08-25
  • Contact: Xiaohua Pan

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Abstract:

A field experiments between 2012-2014 were conducted to study the effects of different sowing rate and sowing date of milk vetch, stubble height of rice plant and different soil moisture on milk vetch yield of rolling belt area after rice machine-harvesting. The results showed that high milk vetch yield of rolling belt area could be obtained for summarizing in the condition on increasing appropriate sowing rate, delaying 5 days for sowing, harvesting with high stubble(30cm), staying for low soil water content at ≤30% and implementing uniform straw mulching after rice machine-harvesting.

Key words: Rice, Mechanical harvesting, Milk vetch, Growth recovery techniques

Table 1

Effects of seeding rate and straw returning method on hay yield of rolling belt area in milk vetch kg/hm2"

处理
Treatments		 播种量 Seeding rate 平均干草产量
Average hay yield
30.0 37.5
稻草切碎不撒匀 Straw shred incorporation 2 301.0b 2 966.0b 2 633.5b
稻草切碎人工撒匀Straw shred uniform incorporation 2 606.9a 3 205.5a 2 906.2a
稻草不切碎不撒匀Straw incorporation 2 354.2b 3 072.5b 2 713.3b
稻草不切碎人工撒匀Straw uniform incorporation 2 673.4a 3 431.6a 3 052.5a
平均干草产量Average hay yield 2 483.9b 3 168.9a

Table 2

Effects of sowing date and straw returning method on hay yield of rolling belt area in milk vetch kg/hm2"

处理
Treatments		 农民习惯播种期
Conventional sowing date		 推迟5d播种
Sowing delay 5 days		 平均干草产量
Average hay yield
稻草切碎不撒匀 Straw shred incorporation 3 604.0b 3 996.2b 3 800.1b
稻草切碎人工撒匀Straw shred uniform incorporation 4 321.8a 4 632.6a 4 477.2a
稻草不切碎不撒匀Straw incorporation 3 759.4b 4 277.4b 4 018.4b
稻草不切碎人工撒匀Straw uniform incorporation 4 558.6a 4 810.2a 4 684.4a
平均干草产量Average hay yield 4 061.0b 4 429.1a

Table 3

Effects of stubble height and straw returning method on hay yield of rolling belt area in milk vetch kg/hm2"

处理
Treatments		 割茬类型Stubble type 平均干草产量
Average hay yield
高茬High stubble 低茬Lower stubble
稻草切碎不撒匀 Straw shred incorporation 1 902.5b 1 844.5b 1 873.5b
稻草切碎人工撒匀Straw shred uniform incorporation 3 074.2a 2 842.1a 2 958.1a
稻草不切碎不撒匀Straw incorporation 2 064.9b 1 983.7b 2 024.3b
稻草不切碎人工撒匀Straw uniform incorporation 2 981.3a 2 795.7a 2 888.5a
平均干草产量Average hay yield 2 505.7a 2 366.5b

Table 4

Effects of soil water content and straw returning method on hay yield of rolling belt area in milk vetch kg/hm2"

处理Treatments 土壤含水量Soil water content 平均干草产量
Average hay yield
≥50% 30%~50% ≤30%
稻草切碎不撒匀 Straw shred incorporation 1 843.3a 2 607.0b 3 039.0b 2 496.4b
稻草切碎人工撒匀Straw shred uniform incorporation 2 035.3a 3 026.3a 3 678.0a 2 913.2a
稻草不切碎不撒匀Straw incorporation 1 881.7a 2 580.8b 3 081.6b 2 514.7b
稻草不切碎人工撒匀Straw uniform incorporation 2 060.9a 2 986.9a 3 734.8a 2 927.5a
平均干草产量Average hay yield 1 955.3b 2 800.3a 3 379.8a
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