土壤溫度，同時，能夠明顯降低灌漿期 <img src="/qkimages/a09c/a09c202504/a09c20250414-2-l.jpg" with="151px" style="vertical-align: middle;"> 土壤溫度。寬幅播種條件下起身期西安亞澳、河南鑫樂、戶縣雙永和山東鄆城四種機型播種的冬小麥單株分蘗數(shù)均分別高于普通條播 2 8 . 1 % 2 8 . 1 % . 5 9 . 4 % 和 1 2 . 5 % ；同時有助于降低冬小麥株高和節(jié)間長度，并明顯增加穗長。與普通條播相比，寬幅播種機每公頃平均產(chǎn)量比普通條播機平均產(chǎn)量高出 5 6 7 . 0 k g ，增產(chǎn)率達 8 . 1 % ；西安亞澳和戶縣雙永機型播種的冬小麥水分利用效率分別提高 1 1 . 2 % 和 6 . 2 % ，然而河南鑫樂和山東鄆城冬小麥水分利用效率分別平均降低 3 . 1 % 和 1 . 2 % 。綜上，戶縣雙永分層施肥機產(chǎn)量最高，為 <img src="/qkimages/a09c/a09c202504/a09c20250414-3-l.jpg" with="110px" style="vertical-align: middle;"> ，同時水分利用效率明顯提高 6 . 2 % ，更適宜于陜西渭北旱地小麥播種，達到豐產(chǎn)和穩(wěn)產(chǎn)的效果。-龍源期刊網(wǎng)" />

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不同寬幅播種機型對冬小麥產(chǎn)量和水分利用效率的影響

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中圖分類號：S233.72 文獻標識碼：A 文章編號：0488-5368（2025）04-0075-07

Abstract：To screen out the most suitable wheat wide-width planter in Weibei drought upland in Shannxi Province and promote the large-scale application of wheat wide -range sowing technology，a field experiment was conducted using four newly developed wide-width planters and a conventional drillto sow winter wheat.By measuring growth traits，yield，and soil water dynamics during the growth period，the effects of diffrent widewidth planters on wheat yield and water use efficiency were analyzed.The results showed that wide- width sowing increased the soil temperature at a depth of during the regreening and jointing stages but reduced soil temperatures at ，and 15 cm during the filling stage. Under wide sowing conditions，the number of tillers per plant in winter wheat sown using the Xian Ya'o，Henan Xinle，Huxian Shuangyong，and Shandong Yuncheng planters increased by 2 8 . 1 % ， 2 8 . 1 % ， 5 9 . 4 % ，and 1 2 . 5 % ，respectively，compared to conventional drilling. Additionally，wide sowing helped reduce plant height and internode length while significantly increasing earlength.

Compared with the conventional drill，the average yield per hectare using wide - width planters was 5 6 7 . 0 k g （204號 higher，withayieldincreaserateof 8 . 1 % .Thewater use efficiency of winterwheat sown with the Xian Yaao and Huxian Shuangyong planters increased by 1 1 . 2 % and 6 . 2 % ，respectively. However，the water use efficiency of wheat sown with the Henan Xinle and Shandong Yuncheng planters decreased by 3 . 1 % and 1 . 2 % ，respectively.In conclusion，the Shuangyong layered fertilizer planter in Huxian Countyachieved the highest yield of 7， ，with a significant improvement in water use efficiency by 6 . 2 % . Therefore，the Shuangyong layered fertilizer planter in Huxian County is recommended for wheat sowing inthe Weibei drylands of Shaanxi Province to achieve high and stable yields.

Key words： Winter wheat； Wide -range sowing;Agronomic traits； Yield; Water use efficiency

小麥寬幅播種技術(shù)是一種小麥高產(chǎn)栽培技術(shù)，它基于精量、半精量播種技術(shù)，通過擴大播種幅寬和行距，促進均勻播種，以實現(xiàn)小麥的高產(chǎn)。（剩余7257字）

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