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提高土地利用率是农业增产增收的一项主要措施。近几年,由于上茬西瓜单位面积收益较高,一些西瓜农却忽视了下茬作物的栽培,没能地尽其力,影响了经济收入。西瓜是多种作物的优良上茬,在没有灌水条件的西瓜田,7月上中旬(收瓜前)于西瓜株间播种一 行向日葵,再于两条瓜垄中间播种一行。向日葵的株行距为40～50×70～80厘米。当向日葵第一片真叶展开时定苗。西瓜罢园后及时中耕、除草、追肥,加强田间管理。10月上旬收获,亩产300斤左右。
Increasing land use efficiency is a major measure for increasing agricultural output. In recent years, due to the higher yield per unit area of watermelon on the previous crop, some watermelon farmers have neglected the cultivation of the crop under the stubble and have not been able to do their utmost to influence the economic income. Watermelon is a good variety of crops on the stubble, in the watermelon fields without irrigation conditions, in mid-July (before harvesting melon) sowing a row of sunflower between the watermelon strains, and sowing in the middle of two rows of melon ridge line. Sunflower line spacing of 40 ~ 50 × 70 ~ 80 cm. When the sunflower leaf when the first real leaf Dingmiao. Watermelon strike promptly after cultivation, weeding, dressing, strengthen field management. Harvest in early October, about 300 pounds per mu.