不同收获时期和收获方式对水稻碾米品质和产量的影响  

Effect of Harvesting Time and Pattern on Milling Quality and Yield of Rice

作　　者：苗得雨[1] 魏玉光[1] 贺海生 

机构地区：[1]黑龙江北大荒农业股份有限公司七星研发中心,黑龙江建三江156300 [2]建三江科研所,黑龙江建三江156300

出　　处：《北方水稻》2007年第4期25-27,共3页North Rice

摘　　要：研究不同收获时期和方式对水稻碾米品质和产量的影响,确定适宜收获期,结果表明:过早收获,籽粒成熟度不高,青瘪粒增多,千粒重降低,从而造成减产,也降低了精米率和整精米率;反之,收获过晚也会降低产量。在本试验条件下,综合考虑各因素,10月1～10日茎秆含水量偏高,可采用半喂入式收割机收获;10月10～17日可采用全喂入式联合收割机收获,即适宜收获时间17 d。割晒方式收获适宜收获期是9月25日～10月5日。The experiment was conducted to study the effect of harvesting times and patterns on milling quality and yield in rice and further to determine favorable harvesting time. The results showed that too early harvest led to low grain ripeness, high green and shriveled grain rate, low 1000-grain weight, yield loss, low polished rice rate and head rice rate; however, too late harvest also resulted in yield loss. In this research, comprehensive factors being considered, half-feed combine harvester was applied on first or 10th, October in that the culms contained much more water; full-feed combine harvester was used on 10th of 17th, October. The suitable harvest period was between 25th, September and fifth, October if rice cutter-rower was used.

关 键 词：收获时期 收获方式 碾米品质 产量 

分 类 号：S511.091[农业科学—作物学] S162.5