Effects of Potassium Application and Straw Returning on Potassium Management and Benefit of Banana

2021 ◽  
Vol 64 (5) ◽  
pp. 1511-1518
Author(s):  
Chao Zheng ◽  
Xiaofei Yang ◽  
Kexing Liu ◽  
Yongxiang Huang

HighlightsThe effects of potash fertilizer and straw returning on a banana orchard were studied by field experiment.Fertilizer with straw was more conductive to potassium nutrient balance and improved banana yield and quality.The economic benefits of straw replacing different amounts of potassium fertilizer were compared.Abstract. To explore the effects of potash fertilizer and straw returning in banana production, a field experiment was carried out, and four treatments were set up: NP fertilizer (NP), NP fertilizer and banana straw (NP+St), NPK fertilizer (NPK), and NPK fertilizer and banana straw (NPK+St). Through the soil potassium balance, the effects of potash fertilizer and straw returning on the yield, quality, and economic benefits of bananas were studied. The results showed that the application of potash fertilizer and straw could improve banana yields. Compared with the NP treatment, the banana yields of the NP+St, NPK, and NPK+St treatments increased by 17.5%, 50.5%, and 71.6%, respectively. The order of banana yield, potassium balance coefficient, and nutrient accumulation was NPK+St > NP+St > NPK > NP. The NPK+St treatment also improved the recovery rate and agronomic utilization rate of potash fertilizer, which were higher than that of potassium application without straw (NPK) and straw application without potassium (NP+St). Potassium application with straw improved the banana yield, increased the total accumulation of nitrogen, phosphorus, and potassium, and improved the efficiency of potash fertilizer uptake by the crop. Therefore, this study demonstrates the importance of straw for maintaining the soil potassium balance in banana production. The input cost of potassium fertilizer was reduced, and the resource utilization of banana straw was realized by straw returning, which can be promoted in local agricultural production. Keywords: Banana, Potassium application, Potassium balance, Straw returning, Yield.

1961 ◽  
Vol 56 (3) ◽  
pp. 383-388 ◽  
Author(s):  
S. N. Adams

Plants from salt and potash fertilizer trials at Bothamsted were harvested at intervals throughout the growing seasons of 1942 and 1943 and analysed for N, K, Na, Ca, Mg and Mn.The uptake of nutrients is discussed with respect to field methods of fertilizer application.Salt increased beet yield in both years, but it did not act by mobilizing soil potassium reserves and increasing the potassium status of the plant. Potash fertilizer, although increasing the potassium status of the plant, did not increase yield. Sodium and potassium were differently distributed in the plant. At harvest, only 6% of the plant's sodium content was in the root compared with 33% of the potassium. The potassium, but not the sodium content of the petiole, was higher than that of the lamina until the end of August. Sodium thus is a nutrient for beet and not a potassium substitute.


Agrika ◽  
2020 ◽  
Vol 14 (2) ◽  
pp. 157
Author(s):  
Listy - Anggraeni ◽  
Riza Ulil Fitria ◽  
Nurul - Istiqomah

ABSTRAKLahan kering di dataran rendah mempunyai iklim kering, sehingga curah hujan rendah,   ketersediaan air sangat terbatas, evaporasi dan transpirasi tinggi. Akibatnya tingkat kesuburan tanah rendah. Peningkatan hasil pipilan kering jagung tergantung pada masukan pupuk N dan P anorganik yang tinggi, tetapi hal ini tidak efisien dan menyebabkan ketidakseimbangan NPK pada tanah. Pupuk kalium berfungsi meningkatkan pertumbuhan dan hasil panen pipilan kering pada kondisi stres kelembaban di iklim kering. Penelitian dilakukan untuk mendapatkan kombinasi pupuk NPK dengan kalium dosis tinggi dan urea yang tepat untuk meningkatkan bobot pipilan kering jagung. Penelitian dilakukan di Desa Pakong, Kecamatan Pakong, Kabupaten Pamekasan, menggunakan pupuk NPK 15-10-19. Rancangan Acak Kelompok dengan 10 perlakuan dan 3 ulangan. Peubah yang diamati adalah tinggi tanaman, jumlah daun, panjang dan diameter tongkol, bobot 100 butir dan hasil jagung pipilan kering. Data dianalisis dengan ANOVA (Analisys of Variance) dilanjutkan DMRT pada α=5% dan analisis finansial menggunakan R/C ratio. Hasil penelitian menunjukkan bahwa pupuk NPK 15-10-19 berpengaruh nyata terhadap tinggi tanaman, panjang dan diameter tongkol, bobot 100 butir dan hasil jagung pipilan kering. Perlakuan pupuk 350 kg ha-1 Urea + 250 kg ha-1NPK 15-10-19 memberikan nilai R/C rasio yang lebih tinggi daripada perlakuan lainnya yaitu sebesar 2.14. Pupuk NPK 15-10-19 sebanyak 250 kg ha-1 + Urea 350 kg ha-1 merupakan usahatani yang paling menguntungkan dan mampu meningkatkan hasil jagung pipilan kering hingga 7.3 t ha-1. ABSTRACTDry-lowland has a dry climate, so rainfall is low, water availability is very limited, high evaporation and transpiration. That resulted in low fertility of soil. The increase in yield of dry shelled corn depend on high input of fertilizer N and P inorganic, but this way is not efficient and leads to an imbalance of NPK in soil. Potassium fertilizer  works to increase the growth and yields of dry shelled on the stress conditions of moisture in dry climate. This research conducted to get a combination of NPK fertilizer with high dose of potassium and urea to increase the weight of dry shelled corn. Research conducted in the Village of Pakong sub-District Pakong, Pamekasan, using NPK fertilizer 15-10-19. A Randomized block is designed with 10 treatments and 3 replications. Variables observed were plant height, number of leaves, length and diameter of cob, weight of 100 grains and yield of dry shelled corn. Data was  analyzed with ANOVA (Analysis of Variance) followed by DMRT at α=5%, and financial was analized using R/C ratio. The results showed that NPK fertilizer gave significant effect on plant height, length and diameter of cob, weight of 100 grains and yield of dry shelled corn. Treatment  of 350 kg ha-1 Urea + 250 kg ha-1 NPK 15-10-19 gave higher R/C ratio  than other treatment, which was 2.14. Application of NPK 15-10-19  + 250 kg ha-1 pottasium + 350 kg ha-1 urea  was the most profitable and it increased the yield of shelled corn dried up to 7.3 t ha-1.  


2010 ◽  
Vol 17 (4) ◽  
pp. 625-629 ◽  
Author(s):  
De-Shui TAN ◽  
Ji-Yun JIN ◽  
Shao-Wen HUANG ◽  
Zhao-Hui LIU ◽  
Li-Hua JIANG

1962 ◽  
Vol 42 (2) ◽  
pp. 266-272 ◽  
Author(s):  
T. E. Barber ◽  
B. C. Matthews

The non-exchangeable potassium released by soil after equilibration with cation-exchange resin was determined by extraction of the mixture with neutral ammonium acetate at room temperature and compared with a similar extraction in the absence of resin. The difference obtained following a 2-day equilibration period was called moderately-available potassium.Simple linear regression of yield on exchangeable potassium or exchangeable plus moderately-available potassium accounted for only 16 and 27 per cent respectively of the variability in yield response of corn, wheat, oats and potatoes to potassium fertilizer in the field. Multiple linear regression of yield on exchangeable and moderately-available potassium accounted for an average of 37 per cent of the variation in crop response; but a multiple quadratic regression of Log (100-per cent yield) on exchangeable and moderately-available potassium accounted for an average of 56 per cent of the variability in Log (100-per cent yield). Multiple quadratic regression of absolute yield or per cent yield on exchangeable and moderately-available potassium accounted for 46 and 50 per cent, respectively, of the variability in crop response to potassium fertilizer.


1965 ◽  
Vol 1 (2) ◽  
pp. 145-152 ◽  
Author(s):  
M. I. Ashrif ◽  
I. Thornton

SUMMARYThe effect of grass mulch on groundnut yield and shelling percentage has been studied at three locations in the Gambia. Yield increases have been mainly attributed to physical factors but residual increases were found for only one year after application. Mulching gave rise to significant increases in exchangeable soil potassium, in percentage potassium in the plant at harvest and in total potassium uptake by the plant. In the absence of response to potassium fertilizer, increased uptake was ascribed to luxury consumption. It was suggested that reduced shelling percentage from mulched plots was due to potassium-calcium antagonism.


1971 ◽  
Vol 51 (3) ◽  
pp. 197-200 ◽  
Author(s):  
D. C. MUNRO ◽  
J. A. CUTCLIFFE

Brussels sprouts (Brassica oleracea var. gemmifera DC., Jade Cross) require no potassium fertilizer on Prince Edward Island soils if exchangeable soil K as determined by neutral 1 N ammonium acetate exceeds 100 ppm. Below 75 ppm exchangeable soil K, 186 kg K/ha must be applied for maximum yields. Potassium treatments increased yields at only three of 12 locations studied. Leaf tissue potassium concentration was significantly increased at all locations by the fertilizer treatments. Neutral 1 N ammonium acetate for determining exchangeable K was the best soil analysis extract among those tested for measuring available potassium. Tissue analysis gave no information beyond soil analysis for predicting potassium fertilizer requirements on any soil studied.


Sign in / Sign up

Export Citation Format

Share Document