Influence of Tillage, Cultivar, Seed Rate and Planting Geometry on Wheat Yield

Abstract

Field experiments were conducted to improve the wheat yield through adjustments in seed rate, spacing and sowing method at Indian Institute of Wheat and Barley Research, Karnal, Haryana during Rabi seasons of 2008-09 to 2012-13. The results showed that by using the precision seed drilling, seed rate from present recommendations of 100 kg/ha can be reduced to 75 kg/ha, however further reduction in seed rate caused yield reductions. If we translate 25% saving across the wheat growing area of India (30 mha) then we can have a huge saving of about 7.5 x 10 5 ton per year of wheat seed. The yield improved as row spacing was reduced from 22.5 to 15 cm, although yield was not significantly different among 15, 17.5 and 20 cm row spacing. Among three varieties (PBW 550, PBW 502 and DBW 17) maximum yield was produced by PBW 550. Among three crop establishment methods viz. no till (NT), conventional till (CT) and bed planted wheat, the lowest yield was obtained in bed planted system, whereas NT and CT had similar yield levels. In 2 and 3 rows bed planted system, 3 rows yielded more compared to 2 row system. Yield improved with bidirectional (criss-cross) sowing (½ + ½ seed) compared to uni-directional sowing. The results of the present studies clearly indicate that wheat yield can be improved through right choice of cultivar, seed rate, spacing and crop establishment methods (Criss-cross sowing).

Optimizing the Seed Rate for Maximized Yield And Benefits of Wheat Under Strip Tillage In Bangladesh

“…In the present study, the 120 kg ha -1 seed rate produced the highest yield followed by 130, and 100 kg and the lowest was recorded from the 100 kg seed ha -1 . Yield variation due to the variation of seed rate attributed to the production of the highest number of grains (Naseh et al, 2020) in each of the longest spike (Chhokar et al, 2017) and the accumulation of more dry matter content in the grains (Kumar et al, 2018). The optimum spaced plants grown from 120 kg seeds ha -1 had less intra-plant competition, which might contribute to obtaining the bolder seeds in the longest spikes of a higher number m -2 area in this present study.…”

Suitable wheat cultivars and seeding machines for conservation agriculture in rice-wheat and sugarcane-wheat cropping systems

“…Additionally, as there is minimum soil disturbance with RDD, it can also be effectively used for cross sowing for higher productivity. Cross sowing in wheat gives the yield advantage over conventional practice (Dhiman et al 1984;Jadho and Nalamwar, 1993;Chhokar et al, 2017). Dhiman et al (1984) reported that four wheat cultivars gave 13-18% higher grain yield when sown by disc drill in cross rows than in one direction only.…”

Determining optimum applied water and seeding rates for winter wheat by using AquaCrop and mathematical‐economic analysis*

“…Major earlier studies about determining optimum plant density emphasized the effect of plant density on the yield and growth of crops (Yan et al, 2016; Chhokar et al, 2017; Allard et al, 2018; Fang et al, 2018; Zhang et al, 2019) and rarely focused on economic analysis of this issue. Based on yield analysis, Chhokar et al (2017) reported that the seed rate of winter wheat can be reduced by 25% for optimum production.…”