Is it better to grow one big field crop or many small high value crops?

Both strategies can work, and the right one depends on your labour, water, marketing reach and how much risk you can take. One big field crop like wheat, soybean or maize is simpler to manage, easier to mechanise, needs fewer hands and is straightforward to sell in bulk, but the income per acre is usually modest and your whole result rides on that one crop's price and weather. Many small high value crops like vegetables and spices can give much higher income per acre and spread risk across crops, but they demand far more labour, water, daily attention and active marketing, and prices can swing hard. A common middle path is to keep most land in a manageable field crop for stability and put a smaller, well watered portion into high value crops for upside. Be honest about the labour and buyers you can actually arrange, since high value crops fail badly without enough hands and a market. Run the numbers for both on your own field and confirm cost, yield and price assumptions with your KVK before deciding the split.