Protective cultivation is an advanced tilling technology to smash crop straw directly and spread it evenly on the soil surface with harvesting machinery or straw-soil returning machinery, then implement no-till planting, so as to improve soil structure, fertilize soil, optimize ecological environment, realize cost decreasing and effect increasing and sustainable development.

The theory deduces that it is a valid way of realizing the growth of agricultural efficiency and improving the whole agriculture production level by establishing agriculture specialization departments according to productive advantage.

Considering the agriculture efficiency growth rate,using the evaluation of national economy to calculate agriculture risk compensation,it is really to reflect the risk losing that water right transfer brings to agriculture.

Study on developing water-economized and efficient agriculture;