结果表明：绝大多数苇田呈碱性反应，钾素营养丰富，氮、磷养分普遍不足；
The results illustrate that chemistry reaction of the soil is weakly alkaline, the K nutrition is plentiful, whereas N and P are insufficient in most parts of the reed fields in Hubei province.
在英国，田云雀量种广泛分布的物种，而且不仅仅是在耕地上，数量呈健康趋势。
The meadow pipit is quite a widespread species, found across the UK, and not limited to farmland; numbers appear healthy.
土表的铵态氮也呈波动变化，随着烤田时间的增加铵态氮含量降低。
The concentrate of ammonium-N fluctuated in soil surfaceand decrease as the delay of soil drying.
应用推荐