bimbohush:
Another picture. Insecticides is also applied every 3 days also. 50% of the plants curl up and die after.

bimbohush:
My cucumber are stunted in growth compared to the previous batch Tho I did those ones in sack. Above are pictures of my plant. I applied npk as basal application at planting and also urea at 2 weeks. I apply fungicide and insecticide between 3-6 days interval depending on the issue at hand. Please your inputs will be gladly appreciated. Thanks
hybridveggies
denero1
munzy14
Jephito
Kalusam
saliubello
Vanpeele
jasper7
Denn
OLAMIMO12

Munzy14:

good day OP!.
having gone through your thread i can a lot of things went wrong. first of all at planting stage you don't need NPK. what you need is organic compost or composted animal dropping(fowl dropping or cow or pig droppings ). get them or any you canblay your hands on and work them up with your soil. to improve the soil fertility. then you plant.
If you want to bringing artificial fertilizer dat should be from 15days old of your plants. and its just 1/2 or 1teaspoon 4inches away from plant stem to avoid plant burning as seen in your last two pics. The yellow border line at the edge if the leaves indicates serious reaction from excessive use of NPK and UREA fertilizer. Most times liquid fertilizers are preferred at the early stage say before 15days. Again the insecticides you are using. improper dilution with water and regular use of it on plants can pose a big risk of stunting plants growth by harming beneficial microorganisms on the leaves surface. I will advise you can use it ones in a while especially when there are no signs of insect attacks on the plant. The make provision of adequate water supply especially in the morning if a sunny day besiege.
Get some weeds in your farm cutt off the roots, soak them in a bucket of good water and leave to ferment for atleast 2weeks. strain out the water rich in Nitrogen and beneficial microbes. use them as soil drench on your plants twice a week. Then if you need some organic and super rich fruit fertilizers check up organicfoods on this AGRO section.
Please desist from use of NPK especially at that early stage of planting. and also, wrong use of UREA. They can wreck your good work.