摘要
旨在为新品种‘晋糯4号’的大力推广提供技术支撑。本试验运用"311-A"二次回归最优设计法研究了旱作‘晋糯4号’的最大需肥量,运用室内测试植株养分含量的方法研究了‘晋糯4号’的吸肥特性。结果表明‘:晋糯4号’高粱最高产量的需肥量为纯N 174.99 kg/hm^2,P2O596.43 kg/hm^2,K2O 165.68 kg/hm^2;其对氮、磷、钾素的吸收表现为:10片展开叶之前吸氮27.34 kg/hm^2、吸磷1.8 kg/hm^2、吸钾17.12 kg/hm^2,11~20片展开叶时段吸氮191.0 kg/hm^2、吸磷16.1 kg/hm^2、吸钾185.6 kg/hm^2,20片展开叶-成熟阶段吸氮36.08 kg/hm^2、吸磷7.93 kg/hm^2、吸钾14.55 kg/hm^2。‘晋糯4号’高粱的最大需肥量为纯N 174.99 kg/hm^2,P2O596.43 kg/hm^2,K2O 165.68 kg/hm^2;全生育期吸肥量以氮最多,钾次之,磷最少。
To promote the new dry-farming sorghum variety‘Jin Nuo 4’, the maximum amount of fertilizer requirement of the variety was studied by using the"311-A"quadratic regression optimal design method and the characteristics of fertilizer absorption were studied by using the method of indoor testing plant nutrient content. The results showed that the fertilizer requirement for the highest yield of‘Jin Nuo 4’sorghum in dry farming was pure N 174.99 kg/hm^2, P2 O5 96.43 kg/hm^2, K2 O 165.68 kg/hm^2. The absorption of nitrogen,phosphorusandpotassiumby‘JinNuo4’was:nitrogenabsorption 27.34 kg/hm^2,phosphorusabsorption 1.8 kg/hm^2,potassium absorption 17.12 kg/hm^2 before 10 unfold leaves;nitrogen absorption 191.0 kg/hm^2, phosphorus absorption 16.1 kg/hm^2, potassium absorption 185.6 kg/hm^2 during 11-20 unfold leaves stage;nitrogen absorption 36.08 kg/hm^2, phosphorus absorption 7.93 kg/hm^2 and potassium absorption 14.55 kg/hm^2 during the 20 unfold leaves-mature stage. The maximum fertilizer requirements of‘Jin Nuo 4’sorghum are pure N174.99 kg/hm^2, P2 O5 96.43 kg/hm^2 and K2 O 165.68 kg/hm^2. The amount of nitrogen absorption is the most,followed by potassium, and phosphorus is the least during the whole growth period.
作者
曹昌林
张建华
白文斌
史丽娟
Cao Changlin;Zhang Jianhua;Bai Wenbin;Shi Lijuan(Sorghum Research Institute,Shanxi Academy of Agricultural Sciences,Shanxi Key Laboratory of Sorghum Genetic and Germplasm Innovation,Jinzhong Shanxi 030600)
出处
《中国农学通报》
2019年第33期29-34,共6页
Chinese Agricultural Science Bulletin
基金
山西省重点研发计划重点项目“高粱专用品种培育及现代化产业技术开发”(201703D11010)
晋中市重点科技创新平台项目“酿造高粱产业化关键技术重点科技创新平台”(P181002)
关键词
高粱
‘晋糯4号’
旱作
需肥量
吸肥特性
sorghum
Jin Nuo 4
dry farming
fertilizer requirement
fertilizer absorption characteristics
