防氮多钾少西葫芦对氮、磷、钾的需求以钾最多、氮次之、磷最少。春季温度较高,西葫芦生长旺盛,若氮肥过多,很容易导致西葫芦徒长,营养生长和生殖生长失调,引起化瓜。因此,春季西葫芦追肥一定要注意少施氮肥,以高钾复合肥为主。防高温干旱西葫芦不耐高温,高温干旱不仅会降低产量,而且还会诱发病毒病。春季温度较高,若通风和浇水不及时,很容易造成棚内高温干旱,致使病毒病发生。另外,棚内温度高,西葫芦容易徒长,引起化瓜。因此,春季 The demand for nitrogen, phosphorus and potassium in the anti-nitrogen and potassium-deficient summer squash is the highest in potassium, the second in nitrogen and the least in phosphorus. Spring high temperature, strong growth of zucchini, nitrogen fertilizer too much, it is easy to cause the squash leggy, vegetative growth and reproductive growth disorders, causing melon. Therefore, spring zucchini top dressing must pay attention to less nitrogen fertilizer, mainly to high potassium fertilizer. Anti-high temperature and drought Zucchini not high temperature, high temperature and drought will not only reduce the yield, but also induce the virus disease. Spring temperature is higher, if the ventilation and watering is not timely, it is likely to cause high temperature and drought shed, resulting in virus disease. In addition, the shed temperature is high, zucchini easy leggy, causing melon. So spring