大田作物的营养带育苗移栽

NUTRIENT BELT AS NURSERY-TRANSPLANTER OF CROP PLANTS

本法包括:安放在特制的育秧器的营养带上用附生培养秧苗;以及待栽的秧苗随带传送到田间条沟内覆土栽埋两个部分。所谓附生培养就是能在上下分肥、气、水三层的育秧器中培育出轻壮的秧苗来;它发出的根丛在营养带中交织盘踞,并成束地伸延到下层(图3,4)。移栽时,满栽秧苗的条带很容易从育秧器提取出来,送到田间。在挖好的条沟的一端放开条带,把秧苗按株距顺序送进沟槽内;再把根部覆土压实。和盛行的水稻插秧方法相比较:它既可减免人工插秧那样繁重的劳动;而且又无需像插秧机那样要求复杂设备和严格操作。它不仅能用在水稻上,更适用于小麦、玉米、棉花等旱地作物大田作物育苗移栽的推广,为今后大田作物继续提高单产和增加复种开辟广阔的前途。

The new device consists of two parts.Establishment of seed- lings on nutrient belt of nursery specially designed for epiponic enlture and transplantation of seedlings by bury ng the belt in the cultivated land.The so cal]ed epiponic culture means that the supply of nutrients,air,and water in the nursery is separately arranged vertically,so that light and healthy seedlings suitable for easy transplantation can be raised with its roots tightly interwoven within the nutrient belt above and extended into air and water regions below (Fig.1).Transplantation is achieved by lifting tbe belt bearing the seedlings from the nursery and sending them to the field.The seedlings on the belt then can be put into the newly dug furrows successively and their roots buried in soil accordingly.In comparison witb the conventional devices of transplanta- tion in rice cultivation,it gets rid of the tedious manual labour and is exempt from the intricate transplantation machinery and rigorous procedure.Its distinct feature is that not only is it adapted for rice transplantation but it can be employed to advantage in the tansplantation of wheat,maize,cotton and other land crops which are badly in need of a proper transplantation device for further promotion of crop yield.