江门地区晚造水稻栽培的适宜氮肥用量和栽植密度探讨
以江门地区目前主栽品种金农丝苗为试验材料,研究了施氮水平和栽植密度对生长过程及后期产量等方面的影响。氮肥设置4个水平,分别为无肥区N0(0kg/hm2)、低肥区N1(105kg/hm2)、中肥区N2(150kg/hm2)、高肥区N3(195kg/hm2);栽植密度设置3个水平,分别为低密度D1(18万穴/hm2)、中密度D2(22.5万穴/hm2)、高密度D3(27万穴/hm2)。通过晚造栽培试验表明,施氮量105kg/hm2,栽植密度22.5万穴/11m2最有利于金农丝苗在江门地区晚造种植中发挥其高产潜力,为农户节支增收。...
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Published in: | 广东农业科学 Vol. 40; no. 14; pp. 20 - 21 |
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Main Author: | |
Format: | Journal Article |
Language: | Chinese |
Published: |
江门市农业科学研究所,广东江门,529060
2013
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Subjects: | |
Online Access: | Get full text |
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Summary: | 以江门地区目前主栽品种金农丝苗为试验材料,研究了施氮水平和栽植密度对生长过程及后期产量等方面的影响。氮肥设置4个水平,分别为无肥区N0(0kg/hm2)、低肥区N1(105kg/hm2)、中肥区N2(150kg/hm2)、高肥区N3(195kg/hm2);栽植密度设置3个水平,分别为低密度D1(18万穴/hm2)、中密度D2(22.5万穴/hm2)、高密度D3(27万穴/hm2)。通过晚造栽培试验表明,施氮量105kg/hm2,栽植密度22.5万穴/11m2最有利于金农丝苗在江门地区晚造种植中发挥其高产潜力,为农户节支增收。 |
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Bibliography: | 44-1267/S FU Rong-fu, ZHANG Wen-zhi, LI Hui-zhu (Jiangmen ]~titute of Agricultural Sciences, Jiangrnen 529060, China) Jin Nong Si Miao, main rice cuhivar planting in Jiangmen area, was adopted to study the effect of nitrogen level and planting density on yield and other related components. We set 4 levels of N fertilizing: no-fertilizer trial plot N0(0 kg/hm2), low fertilizer trial plot Nt (105 kg/hm2), medium fertilizer trial plot N2( 150 kg/hm2), high fertilizer trial plot N3( 195 kg/hm2), and 3 levels of planting density: low density Dl (1.8×10^5 collections/bin2), medium density D2(2.25×10^5 collections/hm2), high density D3(2.7×10^5 eolleetions/hm2) for the experiment. The results indicated that N fertilizer level 105 kg/hm2 and planting density 2.25×10^5 collections/bin2 were suitable to exert the high yield potential of Jin Nong Si Miao, and increase the income, reduce the cost for the farmers. rice; nitrogen level; plant density; yield |
ISSN: | 1004-874X |