【摘 要】
：
试验表明,甜菜是需钾量大的作物,吨甜菜块根需钾量约是氮、磷量的1.45、3.18倍,且吸收阶段长。适宜用量为10kg/亩;施钾可提高根中含糖率0.2～0.6度,但其对含糖率的影响受氮肥制
【机 构】
：
中国农业科学院甜菜研究所,中国农业科学院甜菜研究所,中国农业科学院甜菜研究所,中国农业科学院甜菜研究所,中国农业科学院甜菜研究所
论文部分内容阅读
试验表明,甜菜是需钾量大的作物,吨甜菜块根需钾量约是氮、磷量的1.45、3.18倍,且吸收阶段长。适宜用量为10kg/亩;施钾可提高根中含糖率0.2～0.6度,但其对含糖率的影响受氮肥制约,N与K_2O的适宜配比为1:3;施钾可降低根中α—N含量,K、Na含量略有增加,但统计表明与未施钾处理比差异未达显著水平;此外,钾素还可增强甜菜植株的耐热、抗涝性。
Tests show that sugar beet is a large amount of potassium crops, tons of sugar beet root needs about 1.45,3.18 times the amount of nitrogen and phosphorus, and the absorption stage is long. Appropriate amount of 10kg / mu; potassium can improve the root sugar content of 0.2 to 0.6 degrees, but its influence on the sugar content is controlled by nitrogen, N and K_2O suitable ratio of 1: 3; potassium can reduce the root The contents of α-N, K and Na increased slightly, but the statistics showed that there was no significant difference between the two treatments. In addition, potassium also enhanced the heat tolerance and waterlogging tolerance of sugar beet plants.
其他文献
省域教师教育的发展因其所面临的教育资源分散、各机构缺乏整体统筹、各阶段衔接不畅等现实困境而遭遇瓶颈,其总体质量提升也受到了限制.为实现省域教师教育发展的结构优化、
文章通过对高校学生经常出现的心理问题的剖析,简单明了地阐述了高校学生的主要心理问题及其产生的原因,并且从六个方面提出了解决问题的方法.
提出了一种在波长双环路光电振荡器(OEO)中,利用啁啾压缩和孤子压缩效应产生光窄脉冲的有效方案。此方案能够同时产生双波长光窄脉冲。将双环路OEO产生的高质量微波信号调制
To observe the effects of perindopril on left ventricular remodeling and myocardial osteopontin expression in rats with myocardial infarction. Methods In this
Objectives To elucidate the clinical relevance of nonlinear HRV with postoperative arrhythmias in patients undergoing off-pump CABG. Methods Twenty-seven electi
Objectives To investigate the value of pregnancy-associated plasma protein-A (PAPP-A)and matrix metallo proteinase-9 (MMP-9) in the diagnosis and outcomes evalu
To observe the effect of accessory pathway (AP) conduction on PJ interval in patients with Wolff-Parkinson-White syndrome. Methods 129 patients with a single m
Complications are more frequent in elderly patients with coronary heart disease (CHD), such as impaired glucose tolerance and constipations. It is always diffic
野败(WA)型细胞质的不育系在籼型杂交稻中应用广泛，将WA型细胞质导入粳稻后发现其恢复系较难找到。扬州大学水稻研究所利用同核异质粳稻广亲和不育系筛选到1个对WA型籼稻不育系和WA型粳稻不育系均具正常恢复力的广谱型强恢复系——6078，这为杂交粳稻育种中利用WA型细胞质提供了宝贵的恢复资源。 本研究用6078分别与WA型粳稻广亲和不育系真秋A、WA型籼稻不育系珍汕97A杂交，配制F_1、F_2