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Effect of Sowing Methods and NPK Levels on Growth and Yield of Rainfed Maize (Zea mays L.)

机译:播种方法和氮磷钾水平对番茄生长和产量的影响。雨养玉米(Zea mays L.)

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摘要

To investigate the response of rainfed maize to sowing methods and NPK levels, an experiment was undertaken during kharif of 2011 and 2012 at Dryland (Kerawa) Agriculture Research Station, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, Budgam. The experiment was laid out in a randomized block design with combination of 2 sowing methods (flat sowing, 75 cm apart rows, and ridge sowing, 75 cm apart ridges) and 3 fertility levels (60 : 40 : 20, 75 : 50 : 30, and 90 : 60 : 40 N : P2O5 : K2O kg ha−1) with three replications. Various growth characters, namely, plant height, leaf area index, dry matter accumulation, number of days to different phenological stages, and yield, and yield contributing characters namely, cob length, number of grains cob−1, cob diameter (cm), and 100-seed weight (g), were significantly higher with S2 over S1 during both the years of experimentation. Fertilizer levels F3 (90 : 60 : 40) and F2 (75 : 50 : 30) at par with one another produced significant increase in growth and yield characters, namely, plant height, leaf area index, dry matter production at different growth stages, cob length, number of cobs plant−1, number of grains cob−1, and 100-seed weight over F1 (60 : 40 : 20). Significantly higher grain yield was recorded with fertilizer level F3 (90 : 60 : 40) being at par with F2 (75 : 50 : 30) and showed significant increase over F1 (60 : 40 : 20) with superiority of 5.4 and 5.7 per cent during 2011 and 2012, respectively. The findings of the study concluded that ridge method of sowing of maize with NPK levels of 75 : 50 : 30 kg ha−1 showed better performance of crop in terms of growth, yield, and yield attributes.
机译:为了研究雨养玉米对播种方法和氮磷钾水平的响应,于2011年和2012年的卡里夫(Kharif)在布德加姆克什米尔谢尔-e-克什米尔农业科学技术大学的旱地(喀拉瓦)农业研究站进行了一项实验。以2种播种方法(平播,行距75厘米)和垄播,行距75厘米(厘米)和3种受精水平(60:40:20,75:50:30)进行随机分组设计进行试验。 ,和90:60:40 N:P2O5:K2O kg ha -1 ),重复三个。株高,叶面积指数,干物质积累,不同物候期的天数和产量等各种生长特性,即穗轴长度,籽粒数量cob -1 在这两年的实验中,S2的穗轴直径(cm)和100粒重(g)均显着高于S1。肥料水平F3(90:60:40)和F2(75:50:30)彼此相等,使生长和产量特性显着增加,即株高,叶面积指数,不同生育阶段的干物质产量,穗轴长度,穗轴植物 -1 的数量,谷物穗轴 -1 的数量和F1上的100粒重(60:40:20)。肥料水平F3(90:60:40)与F2(75:50:30)持平,谷物单产显着提高,并且比F1(60:40:20)显着提高,优势分别为5.4和5.7%分别在2011年和2012年。研究结果表明,NPK为75:50:30 kg ha -1 的玉米垄作播种在作物生长,产量和产量方面表现出更好的表现。

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