正文 第六十八章这个专业知识很强啊(第1页/共3页)
裕丰303每袋售价50元，净含量4400粒种子，老板说一亩地大约需要五斤左右的种子，一袋种子大约1.8斤，李朝生算了一亩地大约需要2.7袋种子，这就是商家的聪明之处，人家不卖半袋，所以就需要买三袋。
除了裕丰303之外，李朝生还看了中科玉505玉米种，这个便宜一些一袋同样是4400粒种子，只卖四十五。
这两种根据老板介绍都是国审品种，质量有保证，问李朝生选哪一个，李朝生想了想决定每样都来一点，两样掺着买，对于明末陕西蓝田的土壤环境，李朝生也没有个准确的认知，所以买两种，对比一下就知道以后种什么了。
看完种子李朝生又跟老板聊起了给玉米地施肥，老板是个健谈之人，几句话就听出了李朝生应该是个没种过地的城里娃。
看着李朝生那求知的眼睛，老板开始给李朝生讲解起来。
“这玉米啊，一般施加两遍肥最好，第一遍是底肥也有叫基肥的，第二遍要追肥，玉米生产主要需要三种物质氮磷钾，因此底肥一定要给足了，这个我有两种建议，你要是不嫌贵，怕麻烦可以选用这种玉米专用的三元复合肥，效果挺不错的。”
“如果你想省点钱，你可以买这两种肥掺着用，一个是这个磷酸二铵，一个是这个氯化钾，效果也行。”
“然后底肥下好了，玉米还要进行一遍追肥，追肥就没有别的选择了，用点尿素就行。”
老板指了指店里的化肥说道，听了这话李朝生又问：“那在什么时期用这尿素追肥呢？”
“十叶期前后就行。”
老板随意的说道，可能这个问题对他来说很简单。
“啥叫十叶期？”
李朝生对这种专业名词不是很理解，老板听了这话道：“就是玉米长出十片叶子了，这玉米长出几片叶子，就是几叶期。”
“哦，原来如此。”
李朝生点头，这种专业的问题就要问专业人士。
老板跟李朝生聊了会，并且给李朝生介绍化肥的价格，这三元复合肥50斤装的130元。
尿素五十斤装的100块钱。
老板又给李朝生讲了一下施肥的量，一亩地底肥用三十到五十公斤的三元复合肥都行，这个度看地的贫瘠程度。
尿素大约就是一亩地二十公斤的样子。
老板介绍完了，看着李朝生笑道：“咱们买几袋啊？”
李朝生听了这话拿出手机算了算，这复合肥就算每亩地50公斤吧，也
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