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本县历年播种玉米7.2万亩左右其中约有5.2万亩分布在海拔1000米以上的中高山区,这些地区气温低,降雨多,日照少,产量低而不稳,固此我们先后引进了规格间套、育亩移栽和地膜栽培三项技术,这三项技术配套后成为山区粮食生产的重要增产措施。现将配套的关键措施介绍如下: 一、运用综合栽培技术措施,提高地膜玉米的栽培水平杂交玉米良种增产潜力大,抗逆力强,因此地膜玉米栽培必须使用杂交良种,海拔1400米以下宜用中晚熟杂交良种,海拔1400米以上宜用中早熟杂交良种,播期要适时偏早,比当地露播玉米提前10天左右,也就是5厘米地表温度稳定通过7℃就可播种。其播种质量:一要精细整地,拾净根茬石块、土细地平。二要等
In the past year, about 72,000 mu of sown corn was planted in the county, of which about 52,000 mu were distributed in the middle and high mountain areas at altitudes of over 1,000 meters. These areas have low temperatures, heavy rainfall, low sunshine and low and unstable output. Therefore, we introduced specifications Intercropping, mu transplanting and plastic filming three technologies, these three technologies become an important mountain grain production stimulation measures. Now supporting the key measures are introduced as follows: First, the use of integrated cultivation techniques and measures to improve the cultivation of plastic mulching corn hybrid seed yield potential, strong anti-adverse, so the cultivation of plastic mulching must use hybrid seed, below 1400 meters above sea level is appropriate Middle and late-maturing hybrids, 1400 meters above sea level should be used in premature hybrids, sowing date to be earlier in time than the local broadcast corn about 10 days ahead of schedule, which is 5 cm above the surface temperature can be sown by 7 ℃. The sowing quality: a fine ground preparation, pick up the net stubble stones, fine soil level. Second, wait