中国稻米
中國稻米
중국도미
CHINA RICE
2014年
6期
42-45
,共4页
水稻%插植密度%叶片生长%寒地
水稻%插植密度%葉片生長%寒地
수도%삽식밀도%협편생장%한지
rice%planting density%leaf growth%cold region
以高产优质水稻品种空育131、龙粳26为试验材料,在尿素用量为300 kg/hm2、NPK比为1∶0.5∶0.5的施肥水平下,研究了4个插植密度对水稻叶片生长变化的影响。结果表明,分蘖力强的穗数型品种空育131的适宜插植密度为1.11~1.35万丛/667 m2,分蘖力中等的穗重型品种龙粳26的适宜插植密度为1.65~2.22万丛/667 m2。
以高產優質水稻品種空育131、龍粳26為試驗材料,在尿素用量為300 kg/hm2、NPK比為1∶0.5∶0.5的施肥水平下,研究瞭4箇插植密度對水稻葉片生長變化的影響。結果錶明,分蘗力彊的穗數型品種空育131的適宜插植密度為1.11~1.35萬叢/667 m2,分蘗力中等的穗重型品種龍粳26的適宜插植密度為1.65~2.22萬叢/667 m2。
이고산우질수도품충공육131、룡갱26위시험재료,재뇨소용량위300 kg/hm2、NPK비위1∶0.5∶0.5적시비수평하,연구료4개삽식밀도대수도협편생장변화적영향。결과표명,분얼력강적수수형품충공육131적괄의삽식밀도위1.11~1.35만총/667 m2,분얼력중등적수중형품충룡갱26적괄의삽식밀도위1.65~2.22만총/667 m2。
Field experiment was carried out to study the effects of different planting density on leaf growth of rice Kongyu 131 and Longjing 26 under the condition of urea fertilization amount 300 kg/hm 2 and N∶P∶K proportion 1.0∶0.5∶0.5 in cold region in He-longjiang Province. The results showed that the optimum planting density for panicle number type rice Kongyu 131 were 166.5~202.5 thousands hill/hm2, the optimum planting density for heavy panicle type rice Longjing 26 were 247.5~333.0 thousands hill/hm 2.