熱(re)門推薦:多功能食品安全檢測儀器 食品安全快速檢測儀 農殘檢測儀農藥殘留快速檢測儀
在目前(qian)的(de)(de)農(nong)(nong)(nong)(nong)業(ye)生(sheng)(sheng)產中,農(nong)(nong)(nong)(nong)民(min)(min)施(shi)肥(fei)(fei)仍在沿用原來的(de)(de)習慣方式(shi),看莊(zhuang)稼(jia)(jia)看莊(zhuang)稼(jia)(jia),是(shi)年(nian)復一(yi)年(nian)不變,導(dao)致我(wo)國(guo)糧食和(he)經濟作物產量(liang)停滯不前(qian),質量(liang)連年(nian)下(xia)(xia)降,病(bing)蟲(chong)害嚴重,包括(kuo)化(hua)肥(fei)(fei)農(nong)(nong)(nong)(nong)業(ye)生(sheng)(sheng)產成(cheng)(cheng)本(ben)、農(nong)(nong)(nong)(nong)藥成(cheng)(cheng)本(ben)、農(nong)(nong)(nong)(nong)業(ye)機械成(cheng)(cheng)本(ben)等,農(nong)(nong)(nong)(nong)民(min)(min)的(de)(de)收(shou)入相對(dui)較(jiao)低。人口(kou)增(zeng)加,土(tu)地(di)減少(shao)(shao),農(nong)(nong)(nong)(nong)業(ye)成(cheng)(cheng)本(ben)增(zeng)加。面對(dui)這些不利(li)因素(su),我(wo)們(men)只能從(cong)土(tu)地(di)上(shang)尋求(qiu)利(li)益。而在目前(qian)的(de)(de)農(nong)(nong)(nong)(nong)業(ye)生(sheng)(sheng)產中,農(nong)(nong)(nong)(nong)民(min)(min)的(de)(de)農(nong)(nong)(nong)(nong)業(ye)技(ji)術是(shi)施(shi)肥(fei)(fei)的(de)(de)弱(ruo)者(zhe),換句話(hua)說,目前(qian)的(de)(de)發展潛力(li)是(shi)施(shi)肥(fei)(fei)技(ji)術,所以(yi)推(tui)廣施(shi)肥(fei)(fei)技(ji)術,對(dui)增(zeng)加農(nong)(nong)(nong)(nong)民(min)(min)收(shou)入,提(ti)高農(nong)(nong)(nong)(nong)產品質量(liang),減少(shao)(shao)疾(ji)病(bing)流行(xing)和(he)減少(shao)(shao)地(di)下(xia)(xia)水污染的(de)(de)程度(du)都有著不可(ke)替代的(de)(de)意義。
那么在現代農業生產中,如何實現測土和配方施肥呢?
首先(xian),我們(men)需(xu)要(yao)(yao)了解(jie)土(tu)壤中的(de)(de)營(ying)養物(wu)質(zhi)。要(yao)(yao)知道,植(zhi)物(wu)的(de)(de)必需(xu)營(ying)養物(wu)質(zhi)有16種(zhong),其中碳、氫(qing)、氧主(zhu)(zhu)要(yao)(yao)來自空氣和水,主(zhu)(zhu)要(yao)(yao)由土(tu)壤提供。**類(lei)是(shi)(shi)氮、磷(lin)、鉀,它們(men)在土(tu)壤中相(xiang)對較(jiao)少(shao)(shao)(shao),被作物(wu)吸收利用較(jiao)多,被稱為(wei)(wei)(wei)(wei)塊(kuai)狀元(yuan)素(su);第二類(lei)是(shi)(shi)土(tu)壤中含量比較(jiao)高,作物(wu)需(xu)要(yao)(yao)的(de)(de)較(jiao)少(shao)(shao)(shao),如鈣、鎂、硫等(deng),稱為(wei)(wei)(wei)(wei)中等(deng)元(yuan)素(su);第三種(zhong)是(shi)(shi)土(tu)壤含量很(hen)小(xiao),作物(wu)需(xu)要(yao)(yao)的(de)(de)很(hen)少(shao)(shao)(shao),主(zhu)(zhu)要(yao)(yao)是(shi)(shi)銅、鐵、鋅、硼(peng)、鉬、錳,稱為(wei)(wei)(wei)(wei)微量元(yuan)素(su)。日常施肥工作主(zhu)(zhu)要(yao)(yao)以**類(lei)為(wei)(wei)(wei)(wei)主(zhu)(zhu),通(tong)過改(gai)善土(tu)壤中的(de)(de)氮、磷(lin)、鉀元(yuan)素(su),保(bao)證作物(wu)的(de)(de)健康生長,實(shi)現(xian)品質(zhi)和產量的(de)(de)提高。
而使用土壤養分分析儀是再好不過的(de)(de)了,該儀(yi)器能準確檢(jian)測(ce)包括(kuo)土(tu)壤中(zhong)(zhong)(zhong)銨和(he)肥(fei)料中(zhong)(zhong)(zhong)的(de)(de)氮、有效磷(lin)、鉀、有機質、pH值、鹽分(fen)等(deng),很好地彌補了農民種植經驗的(de)(de)不足,且(qie)檢(jian)測(ce)速度快,能給出合理的(de)(de)施(shi)肥(fei)方(fang)案(an)。可以說,土(tu)壤養分(fen)分(fen)析儀(yi)在測(ce)土(tu)和(he)配方(fang)施(shi)肥(fei)中(zhong)(zhong)(zhong)的(de)(de)應用,將使施(shi)肥(fei)更加有效合理,化肥(fei)資源的(de)(de)利用率(lv)將大(da)大(da)提高,農業成本(ben)將大(da)大(da)降低。
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