丘陵农区非竞争性耕地合理利用的新思路

New thinking on the reasonable utilization of non-competitive arable land in the hilly agricultural area.

以非竞争性土地种植优良作物或牧草收获的绿色营养体喂养畜禽鱼换取肉蛋奶是解决我国21世纪16亿人口食物安全的重大战略举措之一。研究证明,用绿色植物营养体比用粮食及其副产品喂畜可获取更多的畜产品。农牧结合型营养体农业生产主要推广了闲置田地粮-草-畜模式、荒坡地林-草-畜模式、荒山和果园果-草-畜模式、湖州和水库塘(或消落区)鱼-草-畜模式。

The non-competitive arable lands can be suitable to develop the agriculture production of the green vegetative mass. Many researchers indicated that the content of dry matter (DM) and crude protein (CP) in the vegetative mass were several times higher than their crop seed or straw (residues),so more animal products when green vegetative mass of crop was used for feeding ani-mals could be obtained than their grain crops and by-products. The reasonable utilization of non-competitive arable land is one of important strategic measurements to solve the food safety of 1.6 billion population in the 21st century in China. There are four agricultural production models of the vegetative mass with the feature of crop-livestock integration:grain-forage-animal production mod-el in the fallow land,forestry-forage-animal production model in the wasted hillside field,fruit-for-age-animal production model in the fruit garden and fish-forage-animal production model in the lakeside land and reservoir or pool-side land.