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開展時(shí)間: 2025-02-11
舉辦單位: 美國加州圖拉爾國際展覽中心
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地點(diǎn): 巴彥淖爾市
開展時(shí)間: 2025-02-22
舉辦單位: 內(nèi)蒙古春季農(nóng)機(jī)展組委會(huì)
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地點(diǎn): 廣州市
開展時(shí)間: 2025-02-25
舉辦單位: 廣州光亞法蘭克福展覽有限公司
玉米測(cè)產(chǎn)亮實(shí)績(jī) 科學(xué)提產(chǎn)有依據(jù)
———臨汾市農(nóng)業(yè)機(jī)械發(fā)展中心開展玉米密植試驗(yàn)田測(cè)產(chǎn)工作
2024-09-18
09:43:49
來源:山西省農(nóng)機(jī)發(fā)展中心 閱讀量:19915
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導(dǎo)讀:為準(zhǔn)確掌握試驗(yàn)田玉米生長(zhǎng)情況,近日市農(nóng)業(yè)機(jī)械發(fā)展中心組織9名技術(shù)人員到洪洞縣甘亭鎮(zhèn)試驗(yàn)田開展玉米測(cè)產(chǎn)驗(yàn)收工作。
【農(nóng)機(jī)網(wǎng) 科技創(chuàng)新】 臨汾市農(nóng)業(yè)機(jī)械發(fā)展中心春玉米密植試驗(yàn)田進(jìn)入臘熟期,為準(zhǔn)確掌握試驗(yàn)田玉米生長(zhǎng)情況,近日市農(nóng)業(yè)機(jī)械發(fā)展中心組織9名技術(shù)人員到洪洞縣甘亭鎮(zhèn)試驗(yàn)田開展玉米測(cè)產(chǎn)驗(yàn)收工作。
玉米是臨汾市種植面積第一大糧食作物、經(jīng)濟(jì)作物、飼料作物,玉米密植生產(chǎn)全程機(jī)械化是現(xiàn)代玉米生產(chǎn)技術(shù)的發(fā)展趨勢(shì),也是提高糧食單產(chǎn)的重要途徑。臨汾市于2022、2023年分別開展了玉米密植生產(chǎn)全程機(jī)械化試驗(yàn)項(xiàng)目,均達(dá)到了預(yù)期的效果,為了對(duì)試驗(yàn)結(jié)果進(jìn)行進(jìn)一步的論證,2024年繼續(xù)開展玉米密植生產(chǎn)全程機(jī)械化高產(chǎn)高效試驗(yàn),試驗(yàn)田分春玉米和夏玉米兩種地塊,每塊試驗(yàn)田分別采用每畝4000株、5000株、6000株三種種植模式。
玉米產(chǎn)量的測(cè)定采用5點(diǎn)法,在玉米臘熟期進(jìn)行數(shù)據(jù)的測(cè)定。在檢測(cè)樣本地塊中隨機(jī)選取1塊,從四個(gè)地角開始沿對(duì)角線交叉點(diǎn)算起,在四分之一至八分之一對(duì)角線長(zhǎng)的范圍內(nèi)選定一個(gè)數(shù)值,以此數(shù)值為長(zhǎng)度,確定四個(gè)測(cè)區(qū),再加上對(duì)角線的交叉點(diǎn)共5個(gè)測(cè)區(qū)。以穗粒數(shù)、畝產(chǎn)量、倒伏率以及根系參數(shù)為測(cè)試指標(biāo)。
拉卷尺、挖根系、扛玉米、測(cè)數(shù)據(jù)…… 技術(shù)人員根據(jù)5點(diǎn)法,科學(xué)取樣、詳實(shí)記錄,實(shí)地開展了測(cè)距、數(shù)株數(shù)、測(cè)量株高、接穗高度、近地節(jié)間長(zhǎng)、徑桿長(zhǎng)粗、根長(zhǎng)、根數(shù)等數(shù)據(jù)。采樣后對(duì)樣品進(jìn)行人工脫粒,開展行粒數(shù)、穗粒數(shù)、含水率、百粒重等數(shù)據(jù)測(cè)量,測(cè)量結(jié)果顯示4000株百粒重39.78g,平均穗粒數(shù)589粒,畝產(chǎn)708kg/畝;5000株百粒重40.2g,平均穗粒數(shù)607粒,畝產(chǎn)912kg/畝,6000株百粒重38.53g,平均穗粒數(shù)522粒,畝產(chǎn)802kg/畝。經(jīng)試驗(yàn)分析,在施肥水平高、土壤肥力好、墑情適宜、灌溉條件、生產(chǎn)條件好的情況下,密植模式有較大優(yōu)勢(shì),可獲得高產(chǎn)量,但實(shí)際生產(chǎn)中種植過密容易引起肥力不足和空桿等現(xiàn)象,5000株種植模式效益最高。
玉米種植通過適當(dāng)密植提高了質(zhì)量和產(chǎn)量,達(dá)到了增產(chǎn)增收的效果,收獲了高質(zhì)量的經(jīng)濟(jì)效益,為臨汾市合理密植玉米生產(chǎn)全程機(jī)械化推廣打下了良好的基礎(chǔ)。
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