摘要
现有畜菜互补生,系统畜菜配比差异极大,致使CO_2浓度过高或过低,影响CO_2气体施肥效果。在设有内部CO_2通风传输装置且温室CO_2均匀分布的条件下,建立了系统CO_2质量平衡数学模型,编制并验证了CO_2日变化动态模拟的计算机程序。利用该程序,以家畜给温室提供适宜的CO_2浓度为依据,以番茄与育肥猪为例,对沈阳地区主要CO_2施肥期12月～3月的畜菜配比进行了优化选择,为该生态系统的建设及管理提供了一定的依据。
In present plant and animal complementary ecosystem, the ratio of plant growing area to animal raising area varies greatly that causes CO2 concentration too high or too low, and the effect of CO2 enrichment is reduced. Under the condition that a CO2 transfering installation is equiped and the CO2 distrbution along the greenhouse is even, a mathematic equilibrium model of CO2 transfer is established and a computer program for dynamic simulation of CO2 concentration is developed and verified. Based on the appropriate greenhouse CO2 concentration and taking a tomato and fattening pig complementary ecosystem in Shenyang district as an example, the suitable proportion of tomato growing area to the number of fattening pigs is calculated, which supply a basis for the construction and administration of the ecosystem.
出处
《农业工程学报》
EI
CAS
CSCD
北大核心
1995年第2期115-118,共4页
Transactions of the Chinese Society of Agricultural Engineering
基金
国家自然科学基金
关键词
畜菜互补
生态系统
施肥
配比
气体肥料
Plant and animal complementary ecosystem CO_2 enrichment Dynamic simulation of CO_2 concentration Proportion of vegetable and livestock
