I am a new gardener. I have limited experience. I have a kitchen garden measuring 4 X 9 feet and I have got a guy to fill it with manure, compost and soil. I have planted green beans, egg plant, tomato, okra using seeds. Of the 25 odd plants only 5 have green leaves. The rest have yellowish tinge to the leaf color. Some of the leaves have turned brown.I had watered 20 minutes when the seeds were germinating. Afterwards, I have been watering it for 10 minutes every alternate day. I have restricted the sprinkler to 3 minutes every alternate day and am watering the plants using hose every week. I still see a few seeds are germinating. I do not know what plant. Week before last, I used pesticides the neem variety. I also added Miracle Gro the same day and watered the plants. There seems to be little improvement in the plants. Can someone help me understand whether it is too much water or too little water or is it a disease. I live in Katy Texas 30 miles west of Houston.