摘要
针对山西旱作玉米田，采用行间深松免耕作业，研究了玉米深松免耕种植土壤容重、土壤水分等的量化指标及其对玉米产量的影响。试验结果表明，采用玉米深松免耕种植模式可以改善土壤结构，提高土壤蓄水能力，促进玉米生长与产量提高。0—60cm土壤容重深松免耕比旋耕平作分别降低了5．45％（2008年）、3．47％（2009年）；生育期平均蓄水量深松免耕比旋耕平作分别增多5．43％（2008年）、5．88％（2009年）；玉米穗数、穗粒数和百粒重优于对照；先玉335产量深松免耕比旋耕平作分别提高6．15％（2008年）、8．77％（2009年），富友9号产量深松免耕比旋耕平作提高7．05％（2009年）。试验结果表明，深松免耕种植是适合旱作地区推广的一种保护性耕作模式。
According to dry-farming maize field in Shanxi province, field experiment of planted in deep loosening and zero tillage, made a clear result about the quantity indicator of soil bulk density and soil water storage capacity, also the effect on the maize productivity. The experiment showed, in middle Shanxi province, on dry-farming maize, this farming method can improve soil structure, enhance the capability of soil water storage, promote maize growth and raise maize yield;In 2008 and 2009, compared with UST, the 0 -60cm soil bulk density of WNT reduced 5.45% and 3.47% separately; in growth period, compared with UST, he average soil water storage of WNT increased 5.43% and 5.88% separately. We also had a better result of maize spike number,grain number per spike and 100 -seed weight;In 2008 and 2009 ,compared with UST,the Xianyu 335 yield of WNT increasrd 6.15% and 8.77% separately; In 2009 ,compared with UST, the Fuyou 9 yield of WNT increased 7.05%. Considering all the experiment indexes, the farming mode in deep loosening and zero tillage is a protective farming mode for dry-farming area.
出处
《作物杂志》
CAS
CSCD
北大核心
2014年第4期129-132,共4页
Crops
基金
山西省自然科学基金(2013011039-1)
山西省农科院博士基金(YBSJJ1304)
山西省农科院攻关项目(2012ygg42)
关键词
玉米
深松
免耕
土壤含水量
产量
Maize
Deep loosening
Zero tillage
Soil moisture content
Yield
