Chemical control of continuous cropping disease on gladiolus hybrid 唐菖蒲重茬病害的化学防治试验
Continuous cropping obstacle and rhizospheric microecology . root exudates and phenolic acids 根系分泌物与酚酸物质
Simulation of autotoxicity of strawberry root exudates under continuous cropping 连作草莓根系分泌物自毒作用的模拟研究
Effects of long - term crop rotation and continuous cropping on nitrogen in albic soil 长期轮作和连作对白浆土中氮素的影响
Causes and control measures for continuous cropping obstacles in protected vegetable cultivation 设施蔬菜连作障碍原因及防治措施
Effect analysis of root growth promoting agent on continuous cropping and alternate cropping soybean 重迎茬大豆施用促根剂效果分析
Potatoes have been planted for many years in the town , so there exists serious continuous cropping 该乡种植马铃薯马铃薯已经有多年的历史了,重茬现象比较严重。
The decline in yields in the period from 1870 to 1900 was due to the rapid decline in fertility under continuous cropping 休闲、开发更肥沃的地区及使用新品种又使产量增加。
The study also discovered that both the present fertilization system based on inorganic n and inorganic p and the present system of continuous cropping of corn had greats effect on balance of soil nutrients 研究还发现,现行的以无机氮磷肥为主的施肥制度和玉米连作种植制度对土壤养分平衡有很大影响。
Abstract : by means of pot , field minispot experiments and analysis indoor , the effects of soybean specific fertilizer on soil enzymes activity and available nutrients were investigated in rotation , soybean continuous cropping system , respectively 文摘:采用盆栽、田间小区控制试验及室内分析相结合的方法,研究了施用大豆专用肥对连作、轮作大豆土壤酶活性和有效养分的影响。