Integrated Use of Potassium and Soil Mulching on Growth and Productivity of Garlic (<i>Allium sativum</i> L.) under Deficit Irrigation

Abstract

This study was carried out during the winter seasons of 2016 and 2017 at private farm in Beni Suief Governorate, Egypt to investigate the integrative use of potassium levels (24, 48, 72 and 96 kg K2O fed-1) and soil mulching (rice straw and bare soil) on growth and productivity of garlic under three levels of surface irrigation (60, 80 and 100 % of crop evapotranspiration (ETC)). The experimental layout was a spit-spilt plot system based on Randomized Complete Blocks Design. Irrigation levels, potassium rates and mulch types were randomly allocated in the main, sub and sub-sub plots, orderly. The obtained results showed that, the amount of irrigation at 80 and/or 100 % ETC was accompanied increases by plant height, leaves number, leaf area and dry weight plant-1, total bulbs yield, individual bulb weight, cloves weight and number bulb-1 compared to irrigation 60 % ETC. The application of potassium from 24 to 48 and further to 72 and 96 kg K2O fed-1 gave gradual increments in the aforementioned growth and productivity of traits. The rice straw mulch augmented all previous growth, total bulbs yield and its components compared to bare soil. Generally, the 1st order interaction between irrigation percent at 100 and/or 80 % ETC × potassium rate at 96 and/or 72 kg K2O fed-1, irrigation percent at 80 and/or 100 % ETC × rice straw, potassium rate at 96 kg K2O fed-1 × rice straw and the 2nd interaction of irrigation percent at 100 % ETC × potassium rate at 96 kg K2O fed-1 × rice straw mulch had pronounced effects on morphological characters and bulbs yield and its components compared to other combined treatments.

Effect of Irrigation Intervals under Different Sources of Potassium on Growth and Productivity of Garlic تأثير فترات الرى تحت مصادر بوتاسيوم مختلفة على نمو وإنتاجية الثوم

“…The increments in growth parameters due to inoculation with potassium solubilizing bacteria might be attributed to bacteria that can solubilize them and provide faster and continuous supply of K for optimal plant growth (Asem et al, 2020). These results are in general accordant with the findings of Shafeek et al (2016); Abou El-Khair and Mohsen (2016); Arisha et al (2017); Eragegowda et al (2018); Zyada and Bardisi (2018) and Barakat et al (2019) and Hasan and Ragab (2020).…”

Evaluating the Effects of Deficit Irrigation and Mulch Type on Yield and Yield Components of Onion in Fogera, Ethiopia

“…The current result was also in line with [59] who stated that 100%ETc resulted in the highest values of growth parameters, while 50%ETc led to the lowest, with intermediate values recorded at 75%ETc. [60] also reported the lowest plant heights obtained from treatments receiving a low amount of water of 50%ETc. In general, the results indicated growth components of onion decreased as irrigation depth decreased from optimum irrigation (100%ETc) to low soil moisture level (50%ETc).…”

“…Different mulch types had different responses in different crops and agroecology [13]. Therefore, evaluating different water-saving techniques is most important to improve WP and yield under deficit irrigation and mulch [33].…”

“…DI with mulching gave better yield and growth and yield components for onion crops compared to non-mulched conditions (36). A combination of 80%ETc with straw mulch had a high marketable bulb yield of onion [33]. The combination of DI with mulch had pronounced effects on the growth and yield productivity of onion [34].…”

Effect of Mulching Materials and Foliar Spray with Compost Tea on Growth ,Yield and Bulb Quality of Garlic Plants under Sandy Soil Conditions

“…Prasad et al (2017) found that the best quality of onion bulb in regard of maximum neck thickness, basal diameter, diameter of bulb and number of scales per plant were obtained when mulching was done with wheat straw and rice husk. Barakat et al (2019) indicated that the rice straw mulch enhanced total bulbs yield of garlic and its components compared without mulching soil.…”