【摘 要】
：
目前,我县在中低产田春麦施肥中存在不少问题,主要有:重视无机肥,忽视有机肥;重视氮肥,忽视磷肥,氮磷比例失调;重视追肥,忽视基肥与种肥;追肥时期不当,方法欠佳等。我们根据
论文部分内容阅读
目前,我县在中低产田春麦施肥中存在不少问题,主要有:重视无机肥,忽视有机肥;重视氮肥,忽视磷肥,氮磷比例失调;重视追肥,忽视基肥与种肥;追肥时期不当,方法欠佳等。我们根据近几年我县各地生产实践中摸索的经验及一些试验结果,总结出一套中低产田春麦施肥的技术。
At present, there are many problems in spring and summer fertilization in middle and low yield fields in our county, mainly including: attaching importance to inorganic fertilizers and neglecting organic fertilizers; ignoring phosphorus fertilizers and ignoring phosphorus and nitrogen and phosphorus imbalances; attaching importance to top dressing, neglecting basal and seed fertilizers; , Poor methods and so on. According to the experiences we have explored in the production practices around our county and the results of some experiments in recent years, we have summarized a set of techniques for fertilizing spring wheat with medium and low yields.
其他文献
由于数字媒体的飞速发展,使广告设计也有所改变,结合数字媒体技术的广告设计,不仅仅是信息的传达和告知,可以通过广告可以看出该城市的文化内涵与美感,广告设计产业在数字媒
一个从帮人打字,收发信件的学徒,成为美国新闻史上赫赫有名的新闻企业家。他,就是著名的纽豪斯报系的创始人塞缪尔·L·纽豪斯。纽豪斯在他六十八年的报业生涯中,呕心沥血,
Carboxymethytl pachymaram (CMP) was administered to HBV transgenic mice through abdominal injection. Lymphocytes were extracted from the spleens. MTT method was
《暗花》彰显了游达志的鲜明风格,是银河映像风格的代表作之一。它不同于香港其他同类警匪电影,它是一部阴冷的电影,阴暗的光线、紧迫的剧情与人物内心的挣扎,让片中所有人都
s To study the effect of special brain area regional cerebral blood flow (rCBF) abnormal perfusion on leaing and memory function and its molecular mechanism,64
本文以双语素英汉昆虫名为对象,从词内关系与词际关系两个层面进行对比研究,揭示英汉不同民族在昆虫命名中所体现出的思维共性与差异。研究发现,英汉双语素昆虫名词内有种差
Streptococcus is a genus of spherical Gram-positive bacteria responsible for many cases of meningitis, bacterial pneumonia, endocarditis, erysipelas, and necro-
With the popularization of microarray experi-ments in biomedical laboratories, how to make context-specific knowledge discovery from expression data becomes a h
图书馆目录是图书馆读者服务的一个重要组成部分,目录的编排影响到读者的查找图书的郊率。因此,在图书馆工作中,我们有必要认真做好图书馆目录工作。
Library catalogs are
SFH,a recombinant staphylokinase-based fusion protein linked by the factor Xa recognition peptide at the N-terminus of hirudin,is a promising therapeutic candid