Abstract
Abstract In modern agriculture, potassium (K) is being considered as an indispensable nutrient for sustainable crop production. However its use is negligible or minimal in current agricultural practices of Pakistan. In view of the significance of K, a field experiment was conducted to evaluate the effects of K-enriched recycled organic wastes (potassium enriched compost- KEC) for improving yield of hybrid maize (Hycorn-11-plus). The KEC was prepared from the market wastes (fruits and vegetables) using mechanical composter at Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Punjab, and applied @ 300 kg ha-1. The inorganic K treatments were involved 0, 60, 45, 30, 15 K2O ha-1 in the form of potassium sulphate (K2SO4). The randomized complete block design was used. The enrichment of compost with K reduced carbon to nutrient (N, P, K) ratios and improved the nutrients content of the compost. The results of field study revealed that integration of KEC and inorganic K fertilizer (K2SO4) showed that growth and yield traits of maize (including K concentration of maize stover and grain) improved under the combined application of 60 and or 45 kg K ha-1 in conjunction with 300 kg KEC improved most of the as against 60 kg ha-1 K alone. The overall findings of present study suggested that the use of KEC @ 300 kg with 75% inorganic K fertilizer (45 kg K ha-1) improved growth, yield and K concentrations of hybrid maize. Keyword: Compost; Maize production; Market waste; Potassium http://dx.doi.org/10.19045/bspab.2019.80026
Highlights
Enriched recycled organic wastes for improving yield of hybrid maize (Hycorn-11-plus)
The potash nutrient is costly as Potassium (K) is a key element for the compared to other essential elements and it enhancing the vigour and it makes plant is very difficult to purchase by farmers in healthy because it plays the active role in our country as well worldwide [4]
The results showed that mixing KEC with the organic K fertilizer @ 60 or 45 kg K ha-1 more suggested statistically the similar yield of maize, as the against the recommended does, 60 kg K ha-1 alone
Summary
The potash nutrient is costly as Potassium (K) is a key element for the compared to other essential elements and it enhancing the vigour and it makes plant is very difficult to purchase by farmers in healthy because it plays the active role in our country as well worldwide [4]. The use of potassium has increased to deficiency of potassium that can be quickly due to all around globe required destroyed of Agriculture production [5]. The shortage of potassium in Pakistan 20 be increased up to 35257 (000) by 2019 [2, kg per hectare in the 1985 year The required irrigations were applied according to recommendations provided by concerned
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