N release pattern from livestock waste compost and compost pellet was studied with incubation method in lab. and buried glassfilter paper method in the field.
本文采用室内培养法和田间埋设玻璃滤纸包法研究了粉状畜禽粪便堆肥和颗粒堆肥的养分释放。
2
With the buried glassfilter paper bag method a field experiment was carried out in a tobacco field to study mineralization of green manure and its effect on tobacco leaf quality.
在田间条件下利用埋设玻璃滤纸包法研究了绿肥翻压后的分解规律及其翻压绿肥对烟叶品质的影响。
3
A new method is proposed to build a micromachined tunable optical filter array on glass base in visible band.