不同栽培措施对长农粳1号生长特性及产量的影响
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摘要
对常规晚稻长农粳1号的播期、基本苗、施氮量和水分4个因素进行正交试验,探讨不同栽培因素组合对常规晚稻生育期、主要经济性状及产量的影响。结果表明,播期对水稻全生育期影响显著,而基本苗、施氮量均未达到显著水平;在试验水平范围内,随着播期的推迟,其生育期逐渐缩短,施氮量、水分和基本苗对生育期的影响未达到显著水平;播期和施氮量对参试水稻的产量影响显著,基本苗和水分的影响则较小。长农粳1号在A_2(播期5月16日)B_2(每公顷基本苗60.0万株)C_3[施氮量360 kg/hm~2]D_1(水层0 cm)最佳组合下产量最高。
The orthogonal experiment of sowing date, planting density, nitrogen application rate and water content of conventional late rice Changnongjing No.1 was carried out to explore the combination of different cultivation factors. The effects of conventional late rice growth period, major economic traits and yield were studied. The results showed that the sowing date had a significant effect on the whole growth period of rice, while the transplanting density and nitrogen application rate did not reach a significant level. Within the experimental level, with the delay of the sowing date, the growth period is gradually shortened, and the effects of nitrogen application rate, water, and planting density on the growth period have not reached a significant level. Sowing date and nitrogen application rate have significant effects on the yield of tested rice. Factor, the impact on yield reached a significant level, and the effects of transplant density and moisture were small. The best combination of high-yield cultivation of Changnongjing No.1 was A_2(date of seeding May 16)B_2(600 000.0 basic seedlings per hm~2) C_3[nitrogen application rate 360 kg/hm~2] D_1(water layer 0 cm).
The orthogonal experiment of sowing date, planting density, nitrogen application rate and water content of conventional late rice Changnongjing No.1 was carried out to explore the combination of different cultivation factors. The effects of conventional late rice growth period, major economic traits and yield were studied. The results showed that the sowing date had a significant effect on the whole growth period of rice, while the transplanting density and nitrogen application rate did not reach a significant level. Within the experimental level, with the delay of the sowing date, the growth period is gradually shortened, and the effects of nitrogen application rate, water, and planting density on the growth period have not reached a significant level. Sowing date and nitrogen application rate have significant effects on the yield of tested rice. Factor, the impact on yield reached a significant level, and the effects of transplant density and moisture were small. The best combination of high-yield cultivation of Changnongjing No.1 was A_2(date of seeding May 16)B_2(600 000.0 basic seedlings per hm~2) C_3[nitrogen application rate 360 kg/hm~2] D_1(water layer 0 cm).
引文
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[2]魏广彬,徐海港,丁艳锋,等.水稻设计栽培系统的研制与实现[J].南京农业大学学报,2011,34(1):14-19.
[3]韦维.基本苗数及氮肥运筹对钵苗机插水稻生长发育和养分吸收的影响[D].南昌:江西农业大学,2016.
[4]朱正斌,戴华军,夏肄锋,等.播期和肥料运筹对水稻地方品种苏御糯产量和抗性的影响[J].现代农业科技,2017(1):15-17,24.
[5]王福珍,赵仲仁.提高水稻种植效益的栽培技术要点[J].南方农业,2018,12(29):13-14.
[6]杨隆维,徐建龙,刘古春,等.高产软米晚粳新品种长农粳1号的选育[J].种子,2015,34(12):99-101.
[7]朱大伟,张洪程,郭保卫,等.中国软米的发展及展望[J].扬州大学学报(农业与生命科学版),2015,36(1):47-52.
[8]汪伟,裘实,朱大伟,等.播期对不同软米粳稻品种产量、生育期及温光资源利用的影响[J].中国稻米,2018,24(2):79-83.
[9]杨海生.江苏水稻安全生育与产量形成的温光生态特性及其应用的研究[D].江苏扬州:扬州大学,2003.
[10]曾婷婷,黄晚华,童中华,等.不同播期对超级稻早稻产量结构的影响[J].中国农学通报,2018,34(27):17-21.
[11]杨稚愚,汪汉林,邹应斌.播种期对杂交水稻生育期和产量的影响[J].耕作与栽培,2004(3):18-20.