【摘 要】
：
芹菜冬季保护地擗叶栽培可收获三茬,亩产18500～25000斤,平均为21850斤,亩产值达3462.5元,亩纯收入为2987.50元,比常规露地栽培增加收益2090.50元。不但经济效益高,而且调节了
论文部分内容阅读
芹菜冬季保护地擗叶栽培可收获三茬,亩产18500～25000斤,平均为21850斤,亩产值达3462.5元,亩纯收入为2987.50元,比常规露地栽培增加收益2090.50元。不但经济效益高,而且调节了市场供应,使人们在寒冬季节里也能吃到新鲜的芹菜。
Cultivation of celery winter leaves can be harvested three crops, 18500 ~ 25000 kg per mu, with an average of 21850 pounds, 3462.5 yuan per mu, net income of 2987.50 yuan, than the conventional open-field cultivation to increase income 2090.50 yuan. Not only high economic efficiency, but also adjust the market supply so that people can eat fresh celery in the winter season.
其他文献
The core-shell structure nanofibers have been electrospun from the homogeneous solution of poly(lactic acid) (PLA, as core) and Gelatin (GE, as shell).The p
意大利著名女细胞学家、诺贝尔奖得主丽塔·莱维·蒙塔尔奇尼,在她100岁生日时,总结出这样一句话:“长寿的秘诀在于保持思考的状态。”并称自己现在的思维比20岁时更敏捷。
婴幼儿系列糜类营养食品,包括鸡肉菜糜、牛肉菜糜、水果混合糜、蔬菜混合糜.它以新鲜水果,蔬菜、鸡肉、牛肉为原料,经严格的工艺处理,按照婴幼儿特殊的生理需要制成.产品色
A method to prepare nano-hydroxyapatite (n-HAp) was developed, which is an biomimetic process in the presence of a hydrolyzed collagen (HC) at room temperat
As the fundamental 2D carbon structure, graphene can be conceptually viewed as an indefinitely extended, 2D aromatic macromolecule, and can be also consider
The inexpensive production of polymer membranes makes their commercial application particularly attractive.However, further bio-applications such as biosens
近年来我们新育成一批优良大白菜一代杂种,类型丰富;按生育期分有早,中,晚熟品种。按叶球包心方式分有合抱,叠抱两种类型。此外,还有高桩和矮桩,白帮和绿帮之分。其共同的特
在“互联网+教育”的背景下,创新人才培养与教育教学改革都引发了混合式教学研究的热潮,文章围绕目标、过程及评价三个层面的内容构建混合教学模式,融合先进教学理念和现代信
A novel photoinitiator called 2-methyl-2-benzoylethanolpentadecafluorooctanote (1173-F) was synthesized and characterized.1173-F is an efficient photoinitia
我省淮河以南1958年陆续发展起来的苹果新区,面积约2万亩左右。目前除个别果园产量,质量较好之外,一般均不够理想。有的幼年苹果树生长旺而不结果;有的到了盛果期而不丰产。